具有产品R&D的古诺竞争下的R&D策略研究

Study on R&D Strategies under Cournot Competition with Product R&D

以具有产品R&D的双寡头竞争模型为基础,研究了产品差异化市场情形下企业R&D策略行为的绩效。从利润最大化角度来看,企业总应该选择研发卡特尔策略。在知识产权保护程度较高且产品是策略替代条件下,从产品产量与质量的角度考虑,政府部门愿意让企业选择研发竞争策略。在知识产权保护程度较低条件下,研发卡特尔比研发竞争更能推动产品质量、产量和企业利润的提高,并且可以改善社会总体福利,因此,政府部门愿意让企业选择研发卡特尔策略。

Based on the model of the duopoly competition with product R＆D, this paper studies the market performance of enterprises＇ R＆D strategies in a differentiated market. According to the principle of maximum profit, cooperation in the R＆D stage is a reasonable choice for enter prises. Under the condition that there is a high level of intellectual property right protection and that product is a strategic substitute, from the perspective of output and quality, we discover that only noncooperation in both R＆D stage and product marketing stage is enterprises＇ appropriate choice. Under the condition of low-level intellectual property right protection, we find that only cooperation in the R＆D stage is enterprises＇ correct choice from the perspective of maximum quality, output profit and welfare.