Abstract
The measurement of prices is an important area of research in economics since prices play a central role in welfare analysis and macroeconomic comparisons across time and space. While accurate figures on inflation and cost of living are required in temporal comparisons of standard of living in a country and in adjusting poverty lines over time, such information is also essential in spatial comparisons of prices within and across countries. This paper presents a review of the literature on various aspects of price comparisons through purchasing power parity.
Similar content being viewed by others
Notes
References to relevant literatures on these aspects are given in the subsequent sections.
Note that if the Fisher index is replaced by Tornqvist formula, the GEKS index can be derived from the stochastic CPD approach of Rao described below. However, Balk (2009) recently provided an overview of various multilateral methods and endorsed the GEKS-Fisher method as a centre stage method, particularly from the economic approach of international comparisons.
Weinand and von Auer (2020) propose a multistage version of the weighted CPD model to analyse regional price information in Germany.
The regression set-up arises because \(\widehat{a\left({p}^{d}\right)}\) and \(\widehat{a\left({p}^{0}\right)}\) are estimated values. See Coondoo et al. (2011) for a detailed description.
See also Menon et al. (2017).
For analytical purposes, the OECD classifies regions as the first administrative tier of subnational government (for example, States in the USA, Provinces in Canada or Régions in France). This classification is used by National Statistical Offices to collect information, and it represents in many countries the framework for implementing regional policies. While the number of regions (so-called Territorial Level 2 or TL2 in the OECD classification) varies from country to country, the international comparability is ensured by the fact that these administrative regions are officially established in countries.
These maps have been drawn by Sattwik Santra.
Weinand and von Auer (2020) provide evidence from Germany that price levels are spatially auto-correlated and largely driven by the cost of housing.
References
Almas I (2012) International income inequality: measuring PPP bias by estimating engel curves for food. Am Econ Rev 102(1):1093–1117
Almas I, Kjelsurd A, Somanathan R (2013) A behaviour-based approach to the estimation of poverty in India, NHH Department of Economics, Discussion Paper
Atella V, Menon M, Perali F (2004) Estimation of unit values in cross sections without quantity information and implications for demand and welfare analysis. In: Dagum C, Ferrari G (eds) Household behaviour, equivalence scales, welfare and poverty. Physica-Verlag, Heidelberg, pp 195–220
Aten B (1996) Evidence of spatial autocorrelation in international prices. Rev Income Wealth 42:149–163
Aten B, Menezes T (2002) Poverty price levels: an application to Brazilian metropolitan areas. In: World Bank ICP conference, Washington, D.C.
Balassa B (1964) The purchasing power parity doctrine: a reappraisal. J Polit Econ 72(6):584–596
Balk B (2009) Aggregation methods in international comparisons: an evaluation. In: Prasada Rao DS (ed) Purchasing power parities of currencies: recent advances in methods and applications. Edward Elgar, Cheltenham, pp 59–85
Banks J, Blundell R, Lewbel A (1997) Quadratic engel curves and consumer demand. Rev Econ Stat 79:527–539
Barten AP (1964) Family composition, prices and expenditure patterns. In: Hart PE, Mills G, Whitaker JK (eds) Econometric analysis for national economic planning. Butterworths, London, pp 277–292
Bhattacharya N, Chatterjee GS, Pal P (1988) Variations in level of living across regions and social groups in India, 1963–64 and 1973–74. In: Srinivasan TN, Bardhan PK (eds) Rural poverty in South Asia. Oxford University Press, Oxford
Bhattacharyya SS, Joshi PD, Roychowdhury AB (1980) Regional price indices based on NSS 25th round consumer expenditure data. Sarvekshana J NSS Org 34:107–121
Biggeri L, De Carli R, Laureti T (2008) The interpretation of the PPPs: a method for measuring the factors that affect the comparisons and the integration with the CPI work at regional level. Paper presented at the joint UNECE/ILO meeting on consumer price indices, May 8–9, Geneva
Biggeri L et al (2010) Sub national PPPs based on integration with CPIs. Research project, draft proposal, paper presented at the 2nd ICP technical advisory group meeting, Washington DC, February 17–19
Biggeri L, Ferrari G, Yanyun Z (2017) Estimating cross province and municipal city price level differences in China: some experiments and results. Soc Indic Res 131(1):169–187
Brandt L, Holz C (2006) Spatial price differences in China: estimates and implications. Econ Dev Cult Change 55(1):43–86
Cavallo A, Rigobon R (2016) The billion prices project: using online prices for measurement and research. J Econ Perspect 30(2):151–178
Chakrabarty M, Majumder A, Ray R (2018) A framework for the simultaneous measurement of spatial variation and temporal movement in prices in a heterogeneous country: the dynamic household regional product dummy model, Review of Income and Wealth, Series 64, Number 3, September 2018, 703–730. DOI: 10.1111/roiw.12266
Chen C-F, Shen C-H, Wang C-A (2007) Does PPP hold for big mac price or consumer price index? Evidence from panel cointegration. Econ Bull 6(16):1–15
Clements KW, Izan HY (1981) A note on estimating divisia index numbers. Int Econ Rev 22(3):745–747
Clements KW, Izan HY, Selvanathan EA (2006a) Stochastic index numbers: a review. Int Stat Rev 74(2):235–270
Clements K, Wu Y, Zhang J (2006b) Comparing international consumption patterns. Empir Econ 31:1–30
Clements KW, Lan Y, Seah SP (2010) The big mac index two decades on an evaluation of burgernomics. Economics Discussion working papers 10–14. University of Western Australia, Department of Economics
Coondoo D, Saha S (1990) Between-state differentials in rural consumer prices in india: an analysis of intertemporal variations. Sankhya Ser B 52(3):347–360
Coondoo D, Majumder A, Ray R (2004) A method of calculating regional consumer price differentials with illustrative evidence from India. Rev Income Wealth 50(1):51–68
Coondoo D, Majumder A, Chattopdhyay S (2011) Estimating spatial consumer price indices through engel curve analysis. Rev Income Wealth 57(1):138–155
Costa A, Garcia J, Raymond JL, Sanchez-Serra D (2019) Subnational purchasing power of parity in OECD countries: estimates based on the Balassa-Samuelson hypothesis, OECD Regional Development Working Papers 2019/12, https://dx.doi.org/10.1787/3d8f5f51-en.
Cox TL, Wohlgenant MK (1986) Prices and quality effects in cross-sectional demand analysis. Am J Agr Econ 68(4):908–919
De Carli R (2010) Intra-national price level differentials: the Italian experience. In: Biggeri L, Ferrari G (eds) Price indexes in time and space: methods and practice. Springer, Berlin, pp 115–130
Deaton A (1988) Quality, quantity and spatial variation of price. Am Econ Rev 78(3):418–430
Deaton A, Dupriez O (2011) Purchasing power parity exchange rates for the global poor. Am Econ J Appl Econ 3(2):137–166
Deaton AS, Friedman J, Alatas V (2004) Purchasing power parity exchange rates from household survey data: India and Indonesia. Working Paper No. 173, Research Program in Development Studies, Woodrow Wilson School, Princeton University
Diewert WE (2005) Weighted country product dummy variable regressions and index number formulae. Rev Income Wealth 51:561–570
Dikhanov Y, Palanyandy C, Capilit E (2011) Subnational purchasing power parities toward integration of international comparison program and consumer price index: the case of the Philippines, ADB Economics Working Paper Series, No. 290 | December 2011.
Drechsler L (1973) Weighting of index numbers in multilateral international comparisons. Rev Income Wealth 19(1):17–34
Feenstra RC, Ma H, Rao DSP (2009) Consistent comparisons of real incomes across time and space. Macroecon Dyn 13(Supplement):169–193
Froot KA, Rogoff K (1995) Perspectives on PPP and long-run real exchange rates. In: Grossman G, Rogoff K (eds) Handbook of international economics. North Holland Press, Amsterdam, vol 3
Geary RG (1958) A note on the comparison of exchange rates and PPPs between countries. J R Stat Soc Ser A 121:97–99
Gomez-Tello A, Diez-Minguela A, Martinez- Galarraga J, Tirado D (2018) Regional prices in early twentieth-century Spain: a country-product-dummy approach. Cliometrica. https://doi.org/10.1007/s11698-018-0175-3
Hill RJ (2000) Measuring substitution bias in international comparisons based on additive purchasing power parity methods. Eur Econ Rev 44:145–162
Hill RJ (2004) Constructing price indexes across space and time: the case of the European Union. Am Econ Rev 94:1379–1410
Hoang LV (2009) Estimation of food demand from household survey data in Vietnam, DEPOCEN Working paper series, no. 2009/12, https://www.depocenwp.org.
ILO/IMF/OECD/UNECE/Eurostat/The World Bank (2004) Consumer price index manual: theory and practice, Geneva, International Labour Office, Annex 4
Khamis SH (1972) A new system of index numbers for national and international purposes. J R Stat Soc Ser A. 135 (Part I): 96–121.
Konüs A (1939) The problem of the true index of the cost of living. Econometrica 7:10–29
Lan Y, Ong LL (2003) The growing evidence on purchasing power parity. In: Ong LL (ed) The big mac index: applications of purchasing power parity. Palgrave Macmillan, UK, pp 29–50
Lewbel A (1989) Identification and estimation of equivalence scales under weak separability. Rev Econ Stud 56:311–316
Majumder A, Ray R (2017) Estimates of spatial prices in india and their sensitivity to alternative estimation methods and choice of commodities. Soc Indic Res 131(1):145–167
Majumder A, Ray R, Sinha K (2012) The calculation of rural-urban food price differentials from unit values in household expenditure surveys: a new procedure and comparison with existing methods. Am J Agr Econ 94(5):1218–1235
Majumder A, Ray R, Sinha K (2015a) Spatial comparisons of prices and expenditure in a heterogeneous country: methodology with application to India. Macroecon Dyn 19:931–989. https://doi.org/10.1017/S1365100513000576
Majumder A, Ray R, Sinha K (2015b) Estimating purchasing power parities from household expenditure data using complete demand systems with application to living standards comparison: India and Vietnam. Rev Income Wealth 61(2):302–328
Majumder A, Ray R, Santra S (2017) Sensitivity of purchasing power parity estimates to estimation procedures and their effect on living standards comparisons. J Glob Dev 8:1. https://doi.org/10.1515/jgd-2017-0006
Majumder A, Ray R, Santra S (2019) The spatial price map of India drawn using pseudo unit values. Indian Growth Dev Rev
Menon M, Perali F, Tommasi N (2017) Estimation of unit values in household expenditure surveys without quantity information. Stata J 17(1):222–239
Menon M, Perali F, Ray R, Tommasi N (2019) The tale of the two Italies: regional price parities accounting for differences in the quality of services, mimeograph
Mishra A, Ray R (2014) Spatial variation in prices and expenditure inequalities in Australia. Econ Record 90(289):137–159
Montero J-M, Laureti T, Minguez R, Fernández-Avilés G (2019) Stochastic model with penalized coefficients for spatial price comparisons: an application to regional price indexes in Italy. Rev Income Wealth. https://doi.org/10.1111/roiw.12422
Neary JP (2004) Rationalizing the penn world table: true multilateral indices for international comparisons of real income. Am Econ Rev 94:1411–1428
Oulton N (2012) How to measure living standards and productivity. Rev Income Wealth 58(3):424–456
Prais SJ, Houthakker HS (1955) The analysis of family budgets, 1971, 2nd edn. Cambridge University Press, Cambridge
Prais SJ, Houthakker HS (1971) The analysis of family budgets, 2nd ed.Cambridge University Press, Cambridge [originally published 1955].
Rao DSP (1971) Existence and uniqueness of a new class of index numbers. Sankhyā Ser B 33:341–354
Rao DSP (1995) On the equivalence of the generalized country-product-dummy (CPD) method and the Rao-system for multilateral comparisons, Working Paper No 5, Centre for International Comparisons, University of Pennsylvania, Philadelphia
Rao DSP (2001) Weighted EKS and generalised CPD methods for aggregation at basic heading level and above basic heading level, Joint World Bank–OECD Seminar on Purchasing Power Parities—recent advances in methods and applications, Washington D.C., 2001
Rao DSP (2005) On the equivalence of weighted country-product-dummy (CPD) method and the Rao-system for multilateral comparisons. Rev Income Wealth 51(4):571–580
Reddy S, Pogge T (2007) How not to count the poor. In: S. Anand and J. Stiglitz (eds.), Measuring Global Poverty, Oxford University Press, Oxford, 2007.
Rogoff K (1996) The purchasing power parity puzzle. J Econ Literature 34:647–668
Samuelson P (1964) Theoretical notes on trade problems. Rev Econ Stat 46(2):145–154
Sarno L, Taylor M (2002) Purchasing power parity and the real exchange rate. IMF Staff Papers 49:65–105
Selvanthan E (1991) Standard errors for Laspeyres and Paasche index numbers. Econ Lett 35:35–38
Summers R (1973) International price comparisons based upon incomplete data. Rev Income Wealth 19(1):1–16
Taylor M (2006) Real exchange rates and purchasing power parity: mean reversion in economic thought. Appl Financ Econ 16:1–17
Taylor A, Taylor MP (2004) The purchasing power parity debate. J Econ Perspect 18:135–158
Weinand S, von Auer L (2020) Anatomy of regional price differentials: evidence from micro-price data. Spatial Econ Anal. https://doi.org/10.1080/17421772.2020.1729998
World Bank (2013) Measuring the real size of the world economy: the framework, methodology, and results of the international comparison program. International Comparison Program, World Bank, Washington DC
World Bank (2015) Purchasing power parities and the real size of world economies: a comprehensive report of the 2011 international comparison program. World Bank, Washington, DC
Acknowledgements
The authors thank an anonymous referee for helpful comments on an earlier version.
Author information
Authors and Affiliations
Corresponding author
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Majumder, A., Ray, R. National and subnational purchasing power parity: a review. Decision 47, 103–124 (2020). https://doi.org/10.1007/s40622-020-00245-7
Published:
Issue Date:
DOI: https://doi.org/10.1007/s40622-020-00245-7