中文摘要：

针对具有网络外部性产品定价策略，着重考虑供应链上下游权力不对等的特点，建立了基于网络外部性的基本模型，分析比较了供应链与供应链之间及供应链内部同时进行的Nash、Stackelberg二维博弈的均衡情况和均衡解。研究表明：（1）在产品具有网络外部性特点时，占主导地位的企业总是能够运用自身的权力使得供应链整体利润最优，让被主导企业只能获得基本利润，而自己获得供应链的所有剩余利润；（2）无论是对单条供应链还是整个行业来说，其利润并不总是网络外部性强度系数的增函数；（3）在提高供应链产品质量的同时，维持或减小与对方供应链产品质量的差距，能有效提高消费者福利并改善行业运行状况。

英文摘要：

This paper, as for pricing strategy of products with network externality under the circumstance of supply chain un- fair power, builds up a model based on network externality and analyzes supply chain network inside and its adversary using Nash.Stackelberg game theory. The result shows that： （1） when products with network externality are sold, the dominant enterprise can ensure maximum profits for the whole supply chain and get all the left profits from it while leaving the domina- ted one only with basic profits ; （2） no matter for enterprise itself or the whole supply chain, profits are not always an in- creasing function of network externality strength coefficient; （3） consumer welfare and the whole industry progress can be improved by improving products qualities and maintaining or decreasing the gap between supply chain~ products and compe- tition adversary＇s.