Barge Gil, AndrésHuergo Orejas, ElenaLópez, AlbertoMoreno Martín, María LourdesCorchón, Luis C.Marini, Marco A.2023-06-172023-06-172018978-1-78811-277-2 (hardback)https://hdl.handle.net/20.500.14352/13955This research has been partially funded by the Spanish Ministry of Economy and Competitiveness (project ECO2014-52051-R) and by the Autonomous Region of Madrid through project S2015HUM-3417 (INNCOMCONCM), co-funded by the European Social Fund (European Union).This paper is the chapter 18 of the Handbook of Game Theory and Industrial Organization (Vo. II). This chapter is devoted to the empirical models of firms’ R&D. This literature is still growing due to the increasing availability of micro-data. Taking this fact into account, the main purpose of this chapter is to provide an overview of three important topics covered by the recent literature: the determinants of firms’ R&D investment, the link between R&D, innovation and productivity, and the analysis of the R&D black box. This chapter is presented as an invitation to industrial organization practitioners, both theorists and applied, to cross the bridge (and to change sides) between theory and applications.engbook partopen accessFirm´s R&D InvesmentInnovation and ProductivityPublic FundingR&D CompositionComplementarity in R&D Activities.Economía industrial