While the importance of absorptive capacities for the engagement in innovative activities has been addressed in numerous studies, the drivers remain an open question. As absorptive capacities are indispensably linked to an individual's human capital, the management of these capacities needs to consider the mobility of individuals. We focus on absorptive capacities as an operationalization and essential part of firms' intrapreneurial capabilities that enable firms to both understand and exploit existing internal and external knowledge and generate and implement new ideas to enhance competitiveness. Considering both the labor stock and mobility on a regional and firm level, our results suggest that the firm/regional labor stock and the firm/regional labor mobility on their own do not have a positive effect on firms' absorptive capacities. Rather, it is the interaction of the firm and regional labor stock and especially firm and regional labor mobility that positively influence firms' absorptive capacities, indicating that labor mobility may only have positive effects if fluid labor markets facilitate adequate matches between employees and employers. We conclude by positing an agenda for future research and discussing implications for both firm managers as well as policymakers.

尽管在许多研究中都已经论证了吸收能力对参与创新活动的重要性，但驱动因素仍然是一个悬而未决的问题。由于吸收能力与个人的人力资本必不可少的联系，对这些能力的管理需要考虑个人的流动性。我们将吸收能力作为公司内部能力的可操作性和必不可少的一部分，使公司能够理解和利用现有的内部和外部知识，并产生和实施新的想法以增强竞争力。考虑到区域和企业层面的劳动力存量和流动性，我们的结果表明，企业/区域劳动力存量和企业/区域劳动力流动本身对企业的吸收能力没有积极影响。相反，企业和区域劳动力存量的相互作用，尤其是企业和区域劳动力流动的相互作用，对企业的吸收能力产生积极影响，表明劳动力流动只有在流动的劳动力市场促进雇员与雇主之间的充分匹配时才可能产生积极的影响。最后，我们提出未来研究的议程，并讨论对公司经理和政策制定者的影响。