海量图书期刊资源，随时随地畅享阅读乐趣
On additive spillovers and returns to scale in R&DRabah Amir; Jim Y. Jin; Michael Troege · 2008
Robust results on the sharing of firm-specific information: Incentives and welfare effectsRabah Amir; Jim Y. Jin; Michael Troege · 2010