RT Book, Section T1 Empirical Models of Firms' R&D A1 Barge Gil, Andrés A1 Huergo Orejas, Elena A1 López, Alberto A1 Moreno Martín, María Lourdes A2 Corchón, Luis C. A2 Marini, Marco A. AB 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. PB Edward Elgard SN 978-1-78811-277-2 (hardback) YR 2018 FD 2018 LK https://hdl.handle.net/20.500.14352/13955 UL https://hdl.handle.net/20.500.14352/13955 LA eng NO This 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). NO Ministerio de Economía, Industria y Competitividad (MINECO) NO Comunidad de Madrid DS Docta Complutense RD 6 abr 2025