Complementarity in alliance portfolios and firm innovation
研究企业联盟组合中联盟特定与伙伴特定属性的组合如何影响创新，基于1985-2007年119家制药企业的面板数据，发现某些属性组合会降低创新效率，而另一些则相互促进创新。
This paper assesses the impact on firm innovation of combining alliance-specific and partner-specific attributes within a firm’s alliance portfolio. In a panel data analysis of the innovation performance of 119 firms operating in the pharmaceutical industry during 1985–2007, we test whether firm’s alliance portfolio displays complementarities across four dimensions. The results suggest that specific combinations of attributes may diminish innovation by decreasing the efficiency of diversity management or by generating redundancies. On the other hand, other alliance portfolio practices are mutually reinforcing and thus foster innovation.