A longitudinal study of the relationship between export activity and innovation in the Spanish firm: The moderating role of productivity

Does innovation lead the firm to export more products, or does a firm's export propensity induce it to innovate? How does a firm's productivity level change this relationship? After confirming that exporters develop more innovations than non-exporters, this study attempts to answer these questions by studying two effects. First, we analyse the impact of innovation on a firm's export activities while addressing potential endogeneity concerns. Second, we examine the impact of export activity on a firm's innovation performance. We must address both questions when considering firm productivity. To this end, we conduct a longitudinal analysis of 14,142 observations of an annual average of 1767 Spanish firms within the manufacturing sector during the period from 2001 to 2008. The results suggest that the self-selection hypothesis adequately explains the observed phenomena. That is, innovation induces firms to increase their export activities. This finding is robust to endogeneity. Nevertheless, firms do not experience any learning-by-exporting effects on the obtaining of product or process innovations. Productivity does not modify any of these relationships. (C) 2011 Elsevier Ltd. All rights reserved.