R&D network formation with myopic and farsighted firms
研究了短视与远见企业如何形成研发网络，发现远见企业平均合作更多，但短视企业可能成为创新传播中心；引入盈利约束的yes-firm能稳定社会福利最优的网络，且不对称网络会永久存在。
We study the formation of R&D networks when firms can be either myopic or farsighted. Stability leads to R&D networks consisting of either asymmetric components or nearly symmetric components. Farsighted firms have in average more collaborations but myopic firms can be central for spreading the innovation. We introduce yes-firms that form links subject to the constraint of non-negative profits. Yes-firms stabilize R&D networks that maximize social welfare. Finally, the evolution of R&D networks shows that nearly symmetric R&D networks will be rapidly dismantled, socially optimal R&D networks will persist many periods, while asymmetric R&D networks will persist forever.