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将垂直溢出纳入到产业链纵向研发合作中,讨论了由M个上游企业、1个中游企业和N个下游企业构成的三级产业链中,中游企业采取独立研发策略或费用分摊策略时,垂直溢出对研发合作产出的影响,并进行了对比分析。研究结果表明:无论中游企业采取独立研发或费用分摊策略,垂直溢出都会促进中游企业增加研发投入、研发产出,提高三级产业链的总利润和总产量,降低终端市场产品价格;相比于独立研发策略,在费用分摊策略下,中游企业研发投入规模更大、研发产出效果更好,产业链总产量更大,下游企业终端市场产品价格更低。但只有垂直溢出超过特定临界值时,采取费用分摊策略时,产业链总利润才会高于独立研发策略,此时选择纵向研发合作更为有利。
The vertical spillover was integrated into the vertical R & D cooperation in the industry chain. When the midstream enterprise adopted the independent R & D strategy or cost sharing strategy in the tertiary industry chain consisting of M upstream enterprises, 1 midstream enterprise and N downstream enterprises, The impact of spillover on R & D cooperation output and a comparative analysis. The results show that: whether the midstream companies adopt independent R & D or cost sharing strategy, vertical spillover will promote midstream companies to increase R & D investment, research output, increase the total profit and total output of the tertiary industry chain, and reduce the price of the end market products; Independent research and development strategy, cost sharing strategy, midstream R & D investment larger scale, R & D output better, more total industrial chain output, lower end product prices lower end market. However, only when the vertical spill exceeds a certain critical value, the total profit of the industry chain will be higher than the independent R & D strategy when the cost sharing strategy is adopted. At this time, it is more advantageous to select the vertical R & D cooperation.