Faustino, Horácio C.Matos, Pedro Verga2025-04-082025-04-082015Faustino, Horácio C. and Pedro Verga Matos .(2015). “Exports, productivity and innovation : new firm level empirical evidence”. Applied Economics, Volume 47: No. 46, pp. 4918–4933.http://hdl.handle.net/10400.5/100054This article examines the determinants of Portuguese exports, applying data from 277 manufacturing firms for the period 2006–2010. In 2010, these firms accounted for about 47% of total Portugal’s exports. Both the static and dynamic results of the estimated models confirm the positive influence of productivity on variations in exports. The dynamic estima-tions also suggest that exports in the previous period hold a positive effecton contemporaneous exports, confirming the Roberts and Tybout (1997) sunk cost hypothesis for exports. In the dynamic analysis, the labour costs and the size of the firm do not have a statistically significant effect on Portuguese exports with the findings also pointing to increased expendi-ture on research and development (R&D) generating no statistically sig-nificant effect on exports. The lagged R&D expenditure was also insignificant in explaining the change of Portuguese exports. Thus, these results suggest that applying a product or process innovation measure returns better results than indirect measures such as R&D expenditure.engExportsInnovationPanel DataProductivityPortugaljournal articledoi.org/10.1080/00036846.2015.10397001466-4283