异质性厂商合作研发的最优投入水平及其成本分摊机制

TheOptimal Input and Cost-sharing of the Cooperative R&D in Heterogeneous Dupoly

在产品差异化的Betrand模型中引入具有需求创造效应的创新,构建一个异质性厂商进行合作研发和价格竞争的两阶段动态博弈模型,研究异质性厂商合作研发的最优研发投入以及研发成本的分摊机制。研究发现,异质性厂商间合作研发的最优研发投入水平和成本分摊比例主要取决于市场容量、自身价格效应、交叉价格效应及研发的需求创造效应;根据自身价格效应、交叉价格效应及研发的需求创造效应确定合作研发成本的分摊比例时,基于Betrand竞争的异质性厂商通过合作研发可以提高其均衡价格、产量和利润。

Introduced the Demand-creating R＆D in the Betrand Model with differentiation, a two-stage dynamic model with cooperative R＆D and price competition could be established to analyse the optimal input and cost-sharing of the cooperative R＆D in heterogeneous dupoly. The model analysis found that, the optimal input and cost-sharing of the cooperative R＆D depended on the available market, firm＇s own price effect, cross-price effect and the demand-creating effects of the R＆D investment. The heterogeneous dupoly cooperated in R＆D following the cost-sharing ratio conditioned by the firm＇s own price effect, cross-price effect and the demandcreating effects, their equilibrium price, quantity and profit could be raised.