Abstract
The aim of this study was to disentangle the role migration plays in several job satisfaction dimensions for academic researchers. We employ a novel database, MORE2, to track the migratory behaviour of European doctorate holders and use a multinomial treatment model to deal with selections bias. We find that more migratory individuals demonstrate higher levels of job satisfaction across several dimensions. These findings are in line with the hypothesis that economic agents who migrate more are better at processing information and find more suitable employment.
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1 Introduction
A large body of the economics literature has dealt with the phenomenon of migration, whereby the focus has been to analyse the mechanisms under which individuals decide whether to migrate, along with the pecuniary outcomes of such an action. In recent decades, with the increase in international migration of individuals with tertiary education, a subset of migration literature has put the spotlight onto skilled workers.Footnote 1 From an economics perspective, this is important, since the migration of highly skilled individuals is perceived as a mechanism to diffuse and develop new ideas, share knowledge and increase innovation. Among the skilled workers, academics and researchers are a sub-group who are internationally very mobile (Hunter et al. 2009; Ioannidis 2004; Trippl 2013) but also driven by non-economic factors. Not only do these people increase knowledge sharing by moving to another country, but they also do so with short visits, such as visiting positions, conferences, co-authoring with people from other countries and co-patenting. In that sense, academic researchers are different from the general population of skilled workers in that their moves are not necessarily permanent (Newland 2009) and again not always economically motivated.Footnote 2
Important for our study is the view that migration can be perceived as a form of investment in human capital (Sjaastad 1962).Footnote 3 Different aspects of a person’s life change considerably when migration takes place. This is because an individual, through migration for example, may attend a better educational institution, or find a more appropriate job that matches her abilities. Highly skilled economic agents will have higher motives to try and reap the rewards of their long and on-going process of investment in human capital.
In this study, we turn our attention to migrants that hold a Ph.D. degree. That is, individuals who possess specialized knowledge and constitute an important sub-sample of the general population. In the economics literature, although a large body of research deals with the migration and consequences of highly skilled migration, it remains relatively silent about doctorate holders. Yet, this group of people presents some interesting traits worth investigating. Namely, the highly educated are typically more mobile than other education groups (Docquier and Marfouk 2006) and tend to gain most from migration (Sabot 1987; Yankow 2003). In addition, academic researchers tend to move more often than the rest of the workers, as they try to find the best potential match for their abilities and career perspectives. To this end, they do not only move within a country, but they might decide to immigrate to other countries which may vary markedly from their country of origin.
The mobility decisions of academic researchers are less likely to be driven by economic motives compared to other highly skilled workers (Baruffaldi and Landoni 2016; Mahoney 1979; Merton 1979; Sauermann and Cohen 2010) and more likely to be driven by non-economic factors (Mahroum 2000; Roach and Sauermann 2010; Salt 1997; Sauermann and Cohen 2010; Stern 2004). Such factors are recognition by peers, independence, intellectual curiosity and challenge, and academic freedom. One of these aspects in a person’s life is job satisfaction, an important parameter that affects an individual’s performance either at work or other life activities. Particularly for academic researchers, moving to a specific location might have multiple implications in their academic career (e.g., academic network, grant possibilities). Therefore, a researcher’s job satisfaction is expected to be affected by her migration decisions.
Past research has focused on the decision to migrate and the selectivity of migrants, as well as the impact of mobility of academic researchers on productivity, citation rates and career development (Aksnes et al. 2013; Azoulay et al. 2012; Baruffaldi and Landoni 2012; De Filippo et al. 2009; Franzoni et al. 2014; Hunter et al. 2009; Levin and Stephan 1999; Veugelers and Bouwel 2015). However, few studies have focused on the job satisfaction of academic researchers which is important in trying to understand workers’ decisions (Clark 1996, 2001). This is somewhat surprising, given how important job satisfaction is in the working environment (Clark 2001) and in later employment decisions for academic researchers (Baruffaldi and Landoni 2016).
The study of happiness has a long history in several disciplines, such as economics, psychology, and sociology. Regarding economics, Easterlin (1974) was one of the first researchers to show that average happiness in the United States seemed to be stagnant, although the income was increasing rapidly (“Easterlin paradox”). Other researchers looked at how micro- and macro-economic characteristics could potentially affect self-reported well-being (see e.g., Clark and Oswald 1994; Frey and Stutzer 2000; Alesina et al. 2004; Stutzer and Lalive 2004; Di Tella and MacCulloch 2005). In studies that use questionnaires, the premise is that self-reported happiness could be perceived as a proxy for economic utility (see e.g., Alesina et al. 2004). Researchers have also examined the factors that affect the quality of life (QOL) at the regional level. For example, Biagi et al. (2018) apply the capability approach of Sen (1987, 1993) to investigate the determinants of QOL in an Italian city on the island of Sardinia. A common outcome of these studies is the mixed results they obtain, indicating that measuring happiness and asserting determinants that affect it is not an easy task.
In this work, we study a specific aspect of subjective well-being, that of job satisfaction. When individuals first start a job, they have only limited information about their occupation and the location they work. As they gain more experience, they get acquainted with their working environment and update their beliefs accordingly. It is in that period, when concerns about job and location may arise. Furthermore, job satisfaction is important, as previous research links it with productivity (Oswald et al. 2015; Patterson et al. 2004), the probability to quit a job (Clark 2001; Clark et al. 1998; Green 2010), and retirement (Clark et al. 2015).
Our aim is to study how migration patterns of European researchers affect their well-being in various job-related satisfaction dimensions. In doing so, we understand that groups of individuals who belong in different migration categories are not randomly selected. That is, different migratory groups possess latent characteristics that might affect their ultimate decision of where to migrate and how often. We employ advanced econometric techniques to deal with the bias issue stemming from selection.
We contribute to the literature in several ways. First, we are among the few studies to study how migration patterns affect researchers’ job satisfaction. Second, we use a novel database, MORE2, that provides rich information about European researchers for whom heterogeneities are larger compared to individuals who move within a country.Footnote 4 The MORE2 allows us to track individuals’ different migratory paths at an international level (between countries) based on the country of citizenship, the country where their highest degree was awarded—in our case Ph.D.—and the country of employment. Third, understanding that different migratory paths conceal people’s latent characteristics, we apply a multinomial treatment model to deal with selectivity. We find that individuals who are the most migratory—and especially those who move to different countries—are more likely to express higher levels of job satisfaction. This corroborates the economic intuition that people leave their countries of origin and move to foreign countries to work in an environment that matches their abilities and offers opportunities for career progression.
2 Background
Global work experiences affect people in several aspects of their lives, including personal, work, and non-work dimensions (Bakker and Demerouti 2007). Because of this, the number of studies on how migration affects expatriates is increasing. According to Shaffer et al. (2012), there are two main types of expatriates. The first type is the corporate expatriates. These are individuals who are sent overseas temporarily by their firms. The second type is self-initiated expatriates. These people initiate their migration and finance it on their own. It is very likely that people who work in academia and migrate to find a suitable position belong to the second category. Their main purpose for such an action is personal and career development, whereby intrinsic motivators—such as job satisfaction and career perspectives—play a crucial role (Ng et al. 2005; Hippler 2009). For example, Brewster et al. (2005) find expatriates to be more satisfied with their career prospects, while Starr and Currie (2009) document that expatriates enjoy higher personal growth. For these effects to be stronger and increase the satisfaction of expatriates, embeddedness in the host country is a key point (e.g., Tharenou and Caulfield 2010).
Apart from intrinsic motivators, researchers have also studied extrinsic motivators. These are observable indicators of success in a specific occupation; salary and promotions are such examples. Other researchers have pointed to other competencies expatriates can obtain through migration, such as a global mind-set, increased self-confidence, and the ability to understand their strengths and weaknesses (see e.g., Dickmann and Harris 2005). Likewise, expatriates learn how to use their international network to further enhance their careers.
The life of ex-pats, nonetheless, is not always rosy. First, potential migrants need to choose the location they want to migrate. For this, they will consider cultural differences (Dickman et al. 2008), standards of living (Carr et al. 2005), the prestige of working in a specific corporation, institution, or even the city (Doherty et al. 2011), and personal issues, including the relationship with family and friends. All the above add many stressors to (potential) expatriates. Eventually, those willing to deal with all these stressors, are the ones who will more likely decide to migrate (Selmer and Leung 2003). Moreover, movers are more likely to develop strategies that help them solve problems more efficiently (Mäkelä and Suutari 2011).
Another issue is that frequent movers might find it tougher to integrate, either in a new or even in their original country. This problem is especially more severe for those who move quite frequently between foreign locations, or domestic locations and foreign locations (Welch et al. 2007). As these stressors might add up in time, the health of international employees might be at risk. Several studies have already pointed towards this direction, finding that many ex-pats are suffering from poor health and limited social relationships (see Mayerhofer et al. 2004).
Moving to the Economics literature, Schultz (1961) and Sjaastad (1962) argue that migration can be perceived as an investment in human capital—human capital is the skills, knowledge, and attributes individuals bring with them into the labour market. That is, the more individuals migrate, the higher will be their accumulation of human capital; since individuals gain knowledge with every additional move. Yet, people are quite heterogeneous in their migration trajectories. Those who are the most determined and ambitious at the same time will try to use their abilities to the fullest. They do this to exploit their acquired skills. As a result, they will be more likely to migrate. In our setting, such individuals are Ph.D. holders.
Ackers (2005) argues that people who want to succeed in science, need to be willing to move; since there will be pressure for them to reach their full potential. For a Ph.D. holder to exploit her skills, the necessary infrastructure must exist. Nonetheless, due to the presence of regional heterogeneities, not all locations have the necessary infrastructure required. To this end, some people will decide to migrate and relocate to a region where they can put their skills in use. Such places are countries with strong universities or research hubs. Precisely, these areas are more likely to attract scientific talent (Dickson 2003). Furthermore, Meyer et al. (2001) argue that, although migration is “polycentric” in nature, the flow of migration seems to always flow from less developed countries to more advanced countries.
From these two strands of literature, we deduce that migration affects several aspects of migrants’ lives and that it manifests differently based on the type of migrant. In our case, academic migrants most likely belong to the category of self-initiated expatriates. For this type of migrants, the main driving forces are job satisfaction and career perspectives. Since migration is seen as an investment in human capital, more migration experiences increase peoples’ skills. This materializes in the labour market with higher pecuniary outcomes. Further, the literature on expatriates documents that frequent migration can also have negative consequences, including the difficulty to integrate into a foreign society, the choice of location, and family issues, especially for those who move frequently. Our empirical findings point to the directions proposed by these strands of literature.
3 Method
To study the effect of selection due to migration on various job satisfaction variables, we support our empirical strategy with the model developed by Lévy-Garboua and Montmarquette (2004). We show the theoretical model here (with some alterations) to accommodate the reader. We start by introducing an experience good, Z, that among others is determined by the migratory path (MP) of a person. We define job satisfaction as:
with MP dictating the categories of migration by taking into consideration the country of citizenship, the country a person received her Ph.D. degree, and the country of employment. Thus, following the typology of Faggian (2005) and Faggian et al. (2007a, b), we construct the following migration categoriesFootnote 5:
\(S\) denotes a vector of job-related satisfaction categories, such as salary satisfaction, career development, job security.
An individual at a specific point in time, \(\tilde{t}\), is asked to express her job satisfaction. The person takes into consideration her experience up to that point to answer. In mathematical terms, we define a job satisfaction index in the following manner:
with \(\psi\) representing pecuniary outcomes and \(\omega\) non-pecuniary outcomes. Following Lévy-Garboua and Montmarquette (2004), we set the “pecuniary value of job”, taking into consideration future income flows, as follows:
with \({\mu }_{kt}\) denoting the wages a person has received from his choices at time \(t\), while \({\mu }_{\neg kt}\) represents the wages a person could have taken should her choices have been different. In addition, we denote the discount rate by \(r\), the expected pecuniary outcomes by \({\mathbb{E}}{V}_{kt}\) should the person continues with the same choice as before, and \({\mathbb{E}}{V}_{\neg kt}\) represents the expected future value for an alternative choice.
The general job satisfaction index is then defined as:
It follows from the previous analysis that:
To incorporate this theory in a regression scheme, we perform a slight modification. More specifically, we set:
with \(\psi =\psi ({\varvec{M}}{\varvec{P}})\) and \(\omega =\omega ({\varvec{M}}{\varvec{P}})\), since the migration path could affect both pecuniary outcomes and other aspects of life that might alter an individual’s level of job satisfaction.
3.1 Data
To conduct our research, we use the Mobility Survey of the Higher Education Sector: Mobility and Career Paths of Researchers in Europe, 2012 (MORE2). This survey collected data for 27 EU countries and six other countries: Associated and Candidate Countries.Footnote 6
In our research, we concentrate on individuals between the ages of 25 to 65. Furthermore, we focus on individuals who are employed, have obtained their Ph.D. degree and work in western European countries (see also Table 7 for the list of countries). This leads to a sample of slightly more than 3000 observations for our preferred empirical approach.
The database provides useful information regarding the most favourite destinations of European researchers and their motivation to migrate. Figure 1 corroborates the intuition we developed above. Specifically, most people mention career progression as their main driver to migrate to another country, followed by availability of research funding, suitable positions, and research network, among others. From the same figure, we deduce that pecuniary outcomes (remuneration) score low as an incentive for migration, although we notice that career progression might have indirect pecuniary benefits in the longer term.
Table 1 presents summary statistics. Given the main job satisfaction indicators, we see that European researchers tend to document lower satisfaction scores concerning their salaries, career advancement, and benefits, whereas they are more satisfied regarding independence, social status, or social contribution. As for migration indicators, we find that about 26% of the interviewees have been awarded their Ph.D. abroad, while 53% had an experience of working abroad. Furthermore, migrants—those who are employed in a country different from their country of citizenship—consist about 22% of the population in our sample. About 5% are repeat-migrants, 15% are return-migrants, 6% are university-stayers, 11% are late-movers, and a large percentage are non-movers.
Taking into consideration the limitations of our database, we try to incorporate standard control variables that have been previously used in the extant literature of migration studies. These include gender, marital status, age, and field of study. Specifically, females represent 34% of the sample. Most individuals live with a partner (married, or unmarried) and have children. Most Ph.D. holders are in the fields of social sciences, closely followed by natural and medical sciences. Based on the major they studied at the university and their current research field, we find about 12% to be mismatched—that is, working in a field that might require different skills from those obtained in the university. Most researchers in our database are established, followed by leading researchers, and recognized researchers.Footnote 7 About 71% of the researchers have a permanent contract, while a 9% of them hold a dual position.
The MORE2 database provides information about researchers’ teaching activities. Most interviewees reported that their teaching activities require about 26–50% of their time. There is also a small number of people whose main duty is teaching; they represent about 6% of the sample. Finally, 10% of our sample consists of individuals without any teaching activities. These could be potentially people who are under a research contract only, work at research centres, or other relevant institutions.
Regarding their confidence for the future, on a scale of 1 to 4, interviewees document an average value of 3.03. The respondents’ average age is about 45, with those belonging in the [40, 44] age group being the majority. We include two variables regarding funding opportunities within Europe: the knowledge of Euraxess and Marie Curie fellowship. Although most people appear to know Marie Curie fellowship, they seem to have limited knowledge about Euraxess.
In the multinomial treatment model, we have included socioeconomic variables from the country of origin that could have potentially affected individuals’ migration decisions. As we do not know when an individual migrated, we utilize average values for the decade before MORE2 survey took place. We acknowledge that such a method is not exactly precise, nonetheless it provides important information for the identification of our first stage model. The country of origin variables we use are the following: growth rate of GDP per capita, empowerment rights index, human capital index, Gini coefficient, openness, Polity scores, employment protection, gross savings, out-of-pocket health expenditures, compensation for tertiary education, government expenditures for tertiary education, and unemployment (youth unemployment and unemployment for those with higher degrees).Footnote 8
3.2 Empirical strategy
We categorize individuals according to two sequential migration decisions using the typology of Faggian (2005, 2007a, b)—whether to migrate to study and whether to migrate for employment. We focus on international migration i.e., migration between countries, and we have information on individuals’ country of citizenship, country where their Ph.D. was awarded, and the country of employment. Since migration is perceived as an investment in human capital, we expect those who have migrated more to possess more human capital. These individuals are more likely to adapt to difficult situations and be able to address asymmetric information more efficiently. Next, we characterize as non-movers those citizens who have not moved outside their country of citizenship to pursue a Ph.D. degree or employment.Footnote 9Late-movers are individuals who finished their Ph.D. degree in their country of citizenship, yet they are employed in another country. Likewise, individuals who are employed in the country where they undertook their Ph.D. studies (but different from their country of origin) are described as university-stayers. The most migratory group are repeat-migrants. That is individuals who were awarded their Ph.D. degree in a country different from their country of citizenship and are employed in another country (different from both the country of citizenship and country where their Ph.D. was awarded). Finally, those who returned to their country of citizenship, after they pursed a Ph.D. program in another country are return-migrants. Figure 2 summarizes the five migration strategies.
Past literature recognizes at least two important schemes in international migration (see e.g., Grogger and Hanson 2011). The first regards the fact that more educated individuals are more likely to migrate (i.e., positive selection). The second argues that highly educated individuals are expected to move to (destination) countries that reward more those with higher skills (positive sorting). Since our sample comprises only of individuals who are at the highest level of educational attainment (doctorate holders), and because migration can be perceived as an investment in human capital, those who have migrated more during their lifetime, could be characterized as having acquired more human capital.Footnote 10 To this end, we expect those who migrate more to other countries to do so in order to achieve the highest possible reward given their accumulated abilities. That is, our sample might be affected by positive sorting that could potentially undermine our econometric analysis. To deal with the bias of positive sorting, we implement a technique introduced by Deb and Trivedi (2006). This method has been applied recently in Kazakis and Faggian (2017) and Abreu et al. (2015). Below, we provide a summary of this technique.
The Deb and Trivedi (2006) two-stage technique corrects self-selectivity when the nature of selection is polychotomous. The five different migration categories analysed above are all mutually exclusive and will be labelled as “treatments” (\(k=1, 2, 3, 4, 5)\). Having non-movers as a base category, we set the indirect utility for treatment \(k\) and individual \(i\) be:
where \({{\varvec{z}}}_{i}\) describes our knowledge of observables, while \({l}_{ik}\) is a vector of latent characteristics that could affect both the treatment and the outcome. Using the observed treatment—belonging to one of the five migration categories—the researcher can deduce important insights about the nature of the selection process. Thus, we model the migration choice as a mixed multinomial logit (first-stage model):
The second stage, which models satisfaction perceptions of European researchers, has the following form:
with \({\varvec{x}}\) denoting observables for individuals, \(d\) denoting migration dummies, and \({\lambda }_{k}{l}_{ik}\) are the correction terms. The letter \(\mu\) indicates the functional form that has been used; in our case is a linear one, which means the model in the second stage is a linear probability model.Footnote 11
To corroborate our findings, we use other proxies for consecutive migration which we construct based on whether individuals were awarded a Ph.D. abroad and whether they have worked abroad. This leads to four mutually exclusive groups. Namely, economic agents who, (1) have been awarded their Ph.D. abroad and have experience working abroad, (2) have experience working abroad, but their Ph.D. was not awarded abroad, (3) have their Ph.D. from abroad, but do not have experience working abroad, and finally, (4) have neither a Ph.D. awarded from a country abroad, or worked abroad.
4 Results
This section presents the findings of the study. Table 2 shows the results of the multinomial treatment model, and Table 3 demonstrates its first stage results. In Table 4, we provide evidence while using an overall measure of satisfaction, incorporating insights from the Item Response Theory (IRT). Table 5 exhibits the results with alternative forms of migration. Lastly, Table 6 shows the results of an endogenous treatment model.Footnote 12
4.1 Results for all migration groups
In this section, we study how standard controls used in the literature of human capital migration are related to the different job satisfaction categories.
Regarding age, we find younger people to present lower levels of salary satisfaction, but higher levels of satisfaction regarding independence, career, social mobility and job location. The results are in tandem with the literature that finds a U-shaped effect between age and job-satisfaction (see e.g., Kacmar and Ferris 1989). As for gender, past research has shown that females tend to have higher levels of job satisfaction than men but this observed gender satisfaction differential has decreased over time (Clark 1997; Kaiser 2007; Sousa-Poza and Sousa-Poza 2003) and this is particularly true for women who are working part-time (Booth and Van Ours 2008, 2009). Nonetheless, the results concerning gender differentials in terms of job satisfaction and quality of life are mixed. For example. Alesina et al. (2004) document that women are happier than men, while Anand and Van Hees (2006) find no significant effect. On the contrary, Biagi et al. (2018) show that males are more satisfied with their quality of life. Our results show that female researchers are less satisfied about their salary, social status, and benefits, but more satisfied about their independence, social contribution, career, and mobility.
Single individuals without children are the most satisfied in terms of salary, career progression, and social status, but they rank last in terms of social contribution. The outcome might be expected, as single individuals could potentially have more time to devote to their careers, all other things considered. Nonetheless, this does not mean that single people are happier. According to the literatures in economics, medicine, and sociology, married people tend to live longer and be healthier (Myers 1999), but the effect of marriage on happiness is not monotonic, albeit it tends to be higher in the first decade after marriage (see e.g., Stutzer and Frey 2006).
The literature informs us that the migration of scientists is not the same across all disciplines. Mahroum (1998) and Ackers (2004), find that highly specialized disciplines place a stronger emphasis on mobility. This is because researchers in these disciplines need the best possible infrastructure to work; such disciplines are for example medicine and engineering. When considering the type of research, we find those with degrees different from that of agriculture, present higher levels of job satisfaction in most categories. The highest levels of satisfaction are reported in medicine and natural sciences. This is an expected outcome, as wages in these fields are higher. We also find that those whose research is not relevant to what they have studied, present lower levels of job satisfaction. We argue that this is because such individuals will need to devote more time to learn new skills. Also, they might need to start from a lower position, thus starting with a relatively lower wage.
Researchers who collaborate internationally are more satisfied salary-wise. They are also more satisfied with potential future mobility. This demonstrates the importance of encouraging the mobility of researchers and international collaboration. It also indicates that collaborations—and, thus, networking—might play a crucial role in future moves.
Finally, scientists with a permanent contract are more satisfied with their career, social status, job security, and job location. We view this as evidence that permanent contracts immunize people from future negative shocks (i.e., job security). On the contrary, those holding a dual position are less satisfied in all categories except career advancement. We find extremely negative coefficients on job satisfaction for those who have only teaching contracts. We view the above as evidence of low payment, potential job mismatch, or an inability for career progression.
4.2 Results for specific migration types
In this section, we report our findings for each migration category. By and large, our findings show that at least for the categories tied with pecuniary outcomes, more migratory groups document higher levels of satisfaction.
4.2.1 Repeat-migrants
With non-movers as our reference group, we find that the most migratory group, repeat-migrants, present higher job satisfaction levels in all categories except those of social contribution, job location, and employer’s esteem. Our interpretation to this outcome is that frequent movers tend to form weaker ties with the region/country they live temporarily. Because of this it is relatively harder for them to contribute to the local society, even with their high-level of expertise. Furthermore, we find repeat-migrants to be highly satisfied with their career advancement (e.g., the coefficient is 0.299 and statistically significant). We interpret this as the tendency of the most-migratory group to reap all possible benefits of migration, with the utmost goal to further climb the ladder of their respective disciplines. This result is also in tandem with the argument of Van de Sande et al. (2005) that international experience is a key parameter for success, especially for younger researchers.
4.2.2 Return-migrants
Martin-Rovet (2003) and Ackers (2005) argue that scientists who have decided to migrate to countries with a better research environment, might return to their country of origin, but this usually happens when they have better credentials compared to those in the country of origin. For return-migrants, the coefficient is negative and statistically significant for the following job satisfaction categories: salary, social contribution, career, job location, and employer’s esteem. It is positive for mobility, social status and benefits. There are many reasons why people would like to return to their country of origin. Some of these reasons belong to the family of social networks and include, among others, finding a partner, taking care of parents and family, being close to friends, and business networks (Crescenzi and Holman 2017). Other reasons include the creation of international networks and the fact that researchers might be able to work with their co-authors when they return. Yet, we could also argue that people were unable to succeed in foreign countries (e.g., they were unable to find a suitable position) and had to return to their origin. This in the literature is viewed as a corrective move. Especially, if the country where they return is relatively poor (compared to where they were awarded their degree), then these individuals are more likely to express less job satisfaction for the categories mentioned above.
4.2.3 University-stayers
The coefficient for university-stayers is positive for the following job satisfaction categories: career advancement, mobility perspectives, social status, and benefits. As it was argued before, researchers usually move from less developed countries to more developed countries to get their degrees, and, eventually, work. This is because the degrees they get there are perceived to be of higher quality in the labour market. In addition, working in centres with a well-known tradition of research, they are more likely to work with “star” scientists and develop strong networks with both academia and industry. As a result, they build a strong basis to advance their career. In addition, such researchers are more likely to be known to their respective fields and be top scientists themselves. Subsequently, this puts them in a narrow list of esteemed researchers, whose mobility ease is quite substantial.
Here, we acknowledge that in some countries there is a culture that prevents the hiring of homegrown Ph.D. graduates. Although we are not able to test for this in our database directly, we are able to capture such “cultural” time-invariant characteristics indirectly by incorporating country fixed effects.
4.2.4 Late-movers
Late-movers, on the other hand, seem to be more satisfied with their salary, independence, and benefits, but not with career perspectives, compared to non-movers. This migration group tends to have a good understanding of their local economy, as they have lived there for a longer time. Hence, when the time comes for them to migrate for work purposes, they may have already achieved a level of recognition—since this group may be of a higher ability compared to non-movers—that allows them to get jobs in more senior positions that pay better.
4.3 First stage results
Next, we present the results of the first stage in Table 3. We find that belonging in an older cohort is negatively related with being a repeat-migrant, university-stayer, or late-mover. A reason for this could be family responsibilities, such as children, elderly parents that need care, or homesickness. Those having children are less likely to migrate. Female researchers tend to be less migratory (see e.g., Comunian et al. 2017), and generally more likely to be non-movers than men. As for the European programs aiming to further assist researchers migrate around Europe (e.g., Euraxess), or programs that aim at providing researchers with funding to perform their research (e.g., the Marie Curie program), we find that researchers who are more familiar with them tend to be more migratory. Those with a degree in humanities are more likely to be return-migrants and at the same time less likely to be non-movers.Footnote 13 Previous research has found that graduates in humanities’ subjects tend to have poorer outcomes in the labour market (Comunian et al. 2014), thus they may need to migrate in order to find a job relevant to their human capital. Finally, those with a degree in medicine are less likely to be repeat-migrants.Footnote 14 Furthermore, the results for the macroeconomic variables of the country of origin are most of the times in line with past literature (e.g., countries with higher growth rate and better property rights are able to keep highly skilled economic agents).
4.4 Alternative models
Unfortunately, our database does not have an overall measure of job satisfaction. Yet, we investigate whether our main results hold when we create cumulated satisfaction measures by (1) adding satisfaction proxies, and (2) by computing latent job satisfaction based on the Item Response Theory (IRT) technique.Footnote 15 The results found in Table 4 are qualitatively in accordance with our main findings.
As a final alternative model, we perform the multinomial treatment approach, based on the migratory behaviour of individuals regarding the location they have chosen for their Ph.D. and whether they have experience working abroad. This differs from the previous approach in that we could potentially capture longer career perspectives. Results can be found in Table 5.
Having the least migratory group as a reference point (individuals with a Ph.D. in their country of citizenship and no work experience abroad) and in accordance with our previous findings, we find that more migratory individuals—captured by the indicator Work_PhD1 (have both obtained their Ph.D. abroad and have an employment history abroad)—document higher levels of job satisfaction in several categories (i.e., salary, independence, social contribution, social status, benefits, job security, and job location). On the contrary, those who have obtained their Ph.D. in another country, but do not have work experience abroad (Work_PhD3), express lower levels of job satisfaction regarding their salary, benefits, and job location. Furthermore, we find that those without experience from abroad, report higher values of satisfaction regarding their employer’s esteem. Generally, our results corroborate our main findings and show that migration does indeed play an important role in the job satisfaction of European doctorate holders.
Lastly, we perform an analysis based on an endogenous treatment-regression model that deals with self-selection bias (see Heckman 1976, 1978). This differs from our previous approach in that individuals are solely characterized as migrants when they work abroad. Thus, this indicator captures migration at a higher scale and does not allow for the additional migration nuances we have seen before. The results of these alternative models are found in Table 6. Specifically, we observe that European doctorate holders are more satisfied regarding their independence, mobility, and benefits. The coefficient for the salary satisfaction category is positive, albeit not significant. In addition, individuals are less satisfied regarding their job location and their employer’s esteem.
5 Conclusion
This work asks whether the migratory paths individuals follow in their lives affect different dimensions of their job satisfaction. To answer this question, we use a novel and representative database that concentrates on European doctorate holders, MORE2.
To deal with the potential bias issues that afflict migration choices, we utilize a multinomial treatment model approach, where individuals are categorized in five distinct groups given their country of citizenship, the country their Ph.D. was awarded, and the country where they were employed at the time of the survey. Our findings indicate that more migratory individuals tend to express higher levels of job satisfaction compared to those who never moved. This further strengthens our argument that individuals who migrate the most, do so to reap the fruits of their investment in human capital. Through migration, economic agents find better employment opportunities that match their abilities, they further develop their network, and see their careers advance.
Our work stresses the role migration plays for researchers, who oftentimes need to spend a considerable amount of time—a period of stress and uncertainty—until they find appropriate employment given their expertise. We view this work as an important addition in the economic literature on job satisfaction and suggest the following avenues for future research. First, future researchers might be interested in studying how perceptions of job satisfaction differ for different cultures and what are the patterns for the general population and doctorate holders. Second, our research reveals that women doctorate holders document lower job satisfaction than men in many categories. Given that past research has shown that women are, on average, more satisfied than men, it would be very interesting to study why there are obvious differences for female doctorate holders. We trust that future research will provide important answers to the aforesaid.
Notes
For the recent literature regarding international migration of students and highly skilled workers, see, among others, Beine et al. (2014), Freeman (2010), OECD (2005), and Skeldon (2009). Regarding the diffusion of knowledge see Döring and Schnellenbach (2006), Edler et al. (2011), Goldin et al. (2011), Miguélez and Moreno (2014), Møen (2005), OECD (2008), Schiller and Revilla-Diez (2010), Thorn and Holm-Nielsen (2008), Trippl (2013), Williams (2007), Zucker and Darby (2006), Zucker et al. (1998, 2002).
Human capital theory assumes economic agents weigh the cost and benefits of migrating and decide whether to migrate or not. These economic agents who migrate are selected individuals in the sense that they are more likely to migrate to get higher education and find a better job that matches their educational background (Faggian et al. 2007a; Jewell and Faggian 2014; Kazakis and Faggian 2017).
The full name of MORE2 is: Mobility Survey of the Higher Education Sector: Mobility and Career Paths of Researchers in Europe.
We provide examples of each category in Appendix Table 10.
A complete list of countries can be found in Table 7 of the appendix, while a detailed description of this database can be found in “Appendix B”. Questions of the survey are in Table 12 of “Appendix C”.
See also Table 8 for a description of the variables and “Appendix B” for more details.
A description of these variables along with their sources and use can be found in Tables 8 and 9 of “Appendix A”.
We understand this is not a perfect measure either, as we only know a person’s current employment status.
It could also be that the migration history of an individual could potentially capture grit—the perseverance some people possess to achieve long-term goals. Credé et al. (2017) argue that grit might have a larger effect on individuals with above the average cognitive ability, while Duckworth et al. (2007) state that grit could potentially be instilled in individuals from a young age. In a recent article, Light and Nencka (2019) document that for high-skilled students grit and cognitive ability are complements and that their inter-relationship is stronger for more challenging tasks.
For more information about the choice of the functional form, see Deb and Trivedi (2006).
Table 2 incorporates country-of-employment fixed effects in the second stage. To further test the robustness of these results we incorporate a model with country-of-origin fixed effects. We do this to capture time-invariant characteristics, such as culture or family ties. We show these results in Appendix Table 11.
Apart from the usual reasons regarding family issues, language, and cultural barriers, doctors who are willing to move to another country might need to learn anew the healthcare system. In some countries, they may need to re-take medical examinations, a requirement for work and visa purposes. Furthermore, they may be unfamiliar with the technical terms used in the profession in the destination country.
The IRT technique allows for the calculation of latent variables, in our case overall satisfaction, based on people’s responses to specific questions. Here, we perform this analysis for IRT models for dichotomous data using the gsem command in Stata.
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Acknowledgements
This paper was previously circulated under the title “On the Role of Migration on the Satisfaction of European Researchers: Evidence from MORE2”. We would like to thank the editor (Martin Andersson) and two anonymous referees for their helpful comments and advice. We are indebted to the participants of the 31st European Society of Population Economics (ESPE) conference in Glasgow (2017), the 57th European Regional Science Association (ERSA) conference in Groningen (2017), the 29th European Society of Labour Economists (EALE) conference in Saint Gallen (2017), the Royal Economic Society conference at the University of Sussex (2018), and the 5th International Conference on Applied Theory, Macro and Empirical Finance at the University of Macedonia (2019). We have received valuable comments from seminar participants of the University of Economics Prague and University of Reading. We would like to thank Peter Whitten for kindly providing access to the MORE2 data set. The European Commission bears no responsibility for the views expressed in this paper. The usual disclaimer follows.
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Appendices
Appendix A
See Tables 7 , 8, 9, 10 and 11.
Appendix B
The MORE2 database was compiled by the European Commission and its aim was to “provide internationally comparable data” in order to study the migration patterns of European researchers. The main objectives of this database were:
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To refine the concepts of “mobility” and “mobile researcher”. By doing so, it delivers better accuracy for this measurement.
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To provide a broader geographical scope.
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To provide a representative database which will help researchers draw conclusions for a larger geographical unit, such as the country.
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To show early stage researchers’ working conditions and collect information about their opinions regarding the aforesaid.
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To reveal which factors affect researchers’ decision when they choose different positions.
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To estimate the number of European researchers working outside of the country where they obtained their degree.
The final database is based on inputs of five different working packages.
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WP0—kick off and road-map
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WP1—EU HEI survey
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WP2—Extra-EU survey
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WP3—Case study on working conditions and career paths
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WP4—Case study on renumeration
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WP5—update of the researcher indicators
All the above working packages are summarized in WP6—Synthesis and final report.
The MORE2 database meets a minimum level of accuracy by using different methodologies to obtain accurate results. The data were collected through two main methods: (a) computer-assisted telephone interviews (CATI) and (b) computer-assisted web interviews (CAWI). The project managers took all the necessary measures for the two projects to interact, to avoid unnecessary outcomes, such as contacting the same people. A follow-up survey completed the data. In addition, measures of refinement that account for seasonal effects were adopted. The final sample had 10,547 individual researchers who at the time of the survey where working in the EU.
Importantly, this database tracks researchers’ movements throughout their career. To better capture mobility, it distinguishes between short-term movements (less than three months), and long-term movements (more than three months). The database can track changes in employer, intersectoral moves, along with the types of origin (citizenship, highest education) and destination. An important advantage of the MORE2 is its global perspective, as it is the only known study to be able to track researchers’ movements at a global scale. Specifically, through the EU HEI survey, this database contains accurate data for all EU member states, along with the Associated and Candidate countries. Furthermore, this survey collects data on satisfaction, working conditions, and mobility.
The database concerns the following fields of science (classified according to the FOS classification of the Frascati Manual):
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Natural Sciences
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Engineering and technology
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Medical Sciences
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Agricultural Sciences
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Social Sciences
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Humanities
Additionally, in the database one can distinguish between four different career stages:
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R1: First Stage Researcher (up to the point of Ph.D.)
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R2: Recognized Researcher (Ph.D. holders who are not fully independent)
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R3: Established Researcher (researchers who have developed a level of independence)
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R4: Leading Researcher (those are individuals who are leaders in their area of research).
In this study we have used only individuals who have obtained a doctorate and therefore we do not include those under the R1 flag.
Appendix C
Here we provide the core questions asked in the questionnaire along with the possible answers (see Table 12).
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Jewell, S., Kazakis, P. Migration patterns and job satisfaction: evidence from European doctorate holders. Ann Reg Sci 66, 359–407 (2021). https://doi.org/10.1007/s00168-020-01024-z
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DOI: https://doi.org/10.1007/s00168-020-01024-z