Bibliographical references Aghion, P., P. Askenazy, N. Berman, G. Cette and L. Eymard (2012), “Credit constraints and the cyclicality of R&D investment: evidence from France”, Journal of the European Economic Association, 10(5), 1001-1024. Becker, B. (2015), “Public R&D policies and private R&D investment: A survey of the empirical evidence,” Journal of Economic Surveys, 29(5), 917-942. Beneito, P., M.E. Rochina-Barrachina and A. Sanchis-Llopis (2015), “Ownership and the cyclicality of firms´ R&D investment”, International Entrepreneurship Management Journal, 11, 343–359. Bovha-Padilla, S., J. P. Damijan and F. Konings (2009), “Financial constraints and the cyclicality of R&D investment: evidence from Slovenia”, LICOS Discussions Paper 239/2009. Katholieke Universiteit Leuven. Cerulli, G. (2010), “Modelling and measuring the effect of public subsidies on business R&D: A critical review of the econometric literature”, The Economic Record 274(86), 421–449. Cerulli, G. and B. Potì (2012), “Evaluating the robustness of the effect of public subsidies on a firm’s R&D: An application to Italy”, Journal of Applied Economics, 15(2), 287-320. Cassiman B. and R. Veugelers (2002), “R&D Cooperation and Spillovers: Some Empirical Evidence from Belgium,” American Economic Review, 92(4), 1169-1184. Czarnitzki, D. and K. Hussinger (2004), "The link between R&D subsidies, R&D spending and technological performance," ZEW Discussion Papers 04-56. Czarnitzki, D. and G. Licht (2006), “Additionality of public R&D grants in a transition economy: The case of Eastern Germany”, The Economics of Transition, 14(1), 101–131. Czarnitzki, D. and C. Lopes-Bento (2014), “Innovation subsidies: Does the funding source matter for innovation intensity and performance? Empirical evidence from Germany”, Industry and Innovation, 21(5), 380-409. European Council (2002), Barcelona European Council – Presidency Conclusions, March 2002, http://register.consilium.europa.eu/pdf/en/02/st06/st06993.en02.pdf . García, A. and P. Mohnen (2010), “Impact of government support on R&D and innovation,” UNU-MERIT Working Paper Series 2010-034, United Nations University, Maastricht Economic and Social Research and Training Centre on Innovation and Technology. David, P., B. Hall and A. Toole (2000), “Is public R&D a complement or substitute for private R&D? A review of the econometric evidence”, Research Policy, 29, 497-529. García-Quevedo, J. (2004), “Do public subsidies complement business R&D? A meta-analysis of the econometric evidence”, KYKLOS, 57(1), 87-102. 22. Heckman, J. J. (1979), “Sample selection bias as a specification error”, Econometrica, 47, 153–162. Hu, M. and K. Hussinger (2014), “The impact of R&D subsidies during the crisis,” Discussion Paper 14-024, ZWE. Huergo, E. and L. Moreno (2017), “Subsidies or loans? Evaluating the impact of R&D support programmes”, Research Policy, 46(7), 1198–1214. Huergo, E., M. Trenado and A. Ubierna (2016), “The impact of public support on firm propensity to engage in R&D: Spanish experience”, Technological Forecasting and Social Change, 116, 206-219. INE (2009-2012), Innovation in Companies Survey. Instituto Nacional de Estadística. Madrid. Jaffe, A.B. (2015), “A framework for evaluating the beneficial impacts of publicly funded research”, Motu Note 15, Motu Economic and Public Research. Leuven, E. and B. Sianesi (2003), “PSMATCH: Stata module to perform full Mahalanobis and propensity score matching, common support graphing, and covariate imbalance testing”, Statistical Software Components S432001, Boston College Department of Economics. López-García, P., J.M. Montero and E. Moral-Benito (2013), “Business cycles and investment in productivity-enhancing activities: evidence from Spanish firms”, Industry and Innovation, 7(20), 611-636. Romer, P. (1990), “Endogenous technical change”, Journal of Political Economy, 5(2), S71-S102. Takalo, T., T. Tanayama and O. Toivanen (2013), “Estimating the benefits of targeted R&D subsidies”, Review of Economics and Statistics, 9 (1), 255–272. Venturini, F., D. Aristei and A. Sterlacchini (2017), “Effectiveness of R&D subsidies during the crisis: firm-level evidence across EU countries,” Economics of Innovation and new Technology, 26, 554-573. Zúñiga-Vicente, J.A., C. Alonso-Borrego, F. J. Forcadell and J. I. Galán (2014), “Assessing the effect of public subsidies on firm R&D investment: a survey,” Journal of Economics Surveys, 28(1), 36-67.