There is growing evidence that firms increasingly adopt open innovation practices. In this paper we investigate the impact of two such external knowledge acquisition strategies, buy and cooperate, on firm's product innovation performance. Taking a direct (productivity) approach, we test for...

This paper compares the determinants and the effects of innovation cooperation on innovation performance at firm level in five European countries: Belgium, Germany, Norway, Portugal and Switzerland. In a first step we analyse cooperation agreements with national and international partners and in...

There is growing evidence that firms increasingly adopt open innovation practices. In this paper we investigate the impact of two such external knowledge acquisition strategies, "buy" and "cooperate", on firm's product innovation performance. Taking a direct (productivity) approach, we test for...