We provide evidence on the dynamics in firms' cooperation behaviour in innovation activities. Our main objective is to analyse if collaborative agreements are persistent at the firm level; and, in such a case, to study what are the main drivers of this phenomenon. We also study to what extent such persistence is different from persistence in R&D, so that the former exists on top of the latter. Finally, we deal with the differentiated persistence pattern of collaboration agreements for different types of partners, as well as the possibility of finding persistence across them. We follow a dynamic approach in the analysis of cooperation persistence: We take into account the unobserved individual heterogeneity and address the initial conditions problem. We use a representative sample of Spanish firms for the period
2002-2010.Keywords: Cooperation in innovation; Innovative Spanish firms; Persistence; Technological partners JEL classification: L24; O32; D22; C23 3
IntroductionEmpirical contributions to the study of cooperation in innovation have expanded significantly in the last decades (Tether, 2002;Miotti and Sachwald, 2003;López, 2008;Abramovsky et al., 2009 We follow a dynamic approach in the analysis of cooperation persistence: We take into account unobserved individual heterogeneity and address the initial conditions problem for a sample of Spanish firms in the period 2002-2010. On average, we find that a firm that cooperates in t-1 has a probability of cooperating in t that is around 33 percentage points higher than that of a firm that did not cooperate in the previous period. We also show that such persistence is genuine in the sense that it is beyond the persistence that is observed in R&D. While the highest persistence is found in the case of vertical collaboration, we also observe that cooperation agreements with research-based agents increase the likelihood of cooperating in the future with a different type of partner.After this introduction, Section 2 proceeds with the literature review. Section 3 describes the database that is used, and Section 4 presents the empirical model. In Section 5 we present and discuss our results; and the main conclusions of the paper are presented in Section 6.
Literature review and hypothesis
Persistence in cooperation in innovation activitiesThe degree of cooperation persistence of a firm could be defined as the positive impact of past collaborations on present cooperation agreements. In principle, there are several potential sources for persistent behaviour (Heckman, 1981a). First, it might be caused by true state dependence: The decision to innovate through cooperation in one period in itself enhances the 5 probability to cooperate in the subsequent period. Second, firms may have some specific characteristics that make them prone to cooperate. To the extent that these characteristics persist over time, they will inevitably induce persistence in cooperation agreements as well.Such features can be classified into observable attributes, such as firm size or a firm's ...