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題名 網路外部性對異質雙占廠商在不同競爭模式的均衡影響分析
The Effect of Network Externalities on Price and Quantity Competition in a Vertically Differentiated Duopoly
作者 張瑞雲
Chang, Ray-Yun
貢獻者 社會科學論叢
關鍵詞 網路外部性;垂直產品差異性;價格競爭;數量競爭
Network externalities;vertical product differentiation;Bertrand competition;Cournot competition
日期 2018-06
上傳時間 28-Mar-2019 10:35:45 (UTC+8)
摘要 本文擴充Motta(1993,Journal of Industrial Economics)的模型,建立一個結合垂直產品差異性及網路外部性的模型,並藉以比較在Bertrand價格競爭與Cournot數量競爭下,廠商的最適品質選擇、市場均衡及社會福利的異同。當網路外部性夠大時,我們得到Motta(1993)一文所無法談及的結果:(1)高品質廠商的利潤在Bertrand均衡下將大於Cournot均衡下的結果;(2)低品質廠商的數量在Bertrand均衡下小於Cournot均衡下的結果;(3)生產者剩餘在Bertrand均衡下都將大於Cournot均衡下的結果。
This paper compares Bertrand and Cournot equilibria in a vertically differentiated duopoly with network externalizes and attempts to provide more inference than what obtained by Motta (1993, Journal of Industrial Economics). In addition to the results of Motta (1993), if the network externality is large enough, we show that (i) the profit of high-quality firm and producer surplus under Bertrand competition are higher than that under Cournot competition; (ii) the equilibrium quantity of low-quality firm under Bertrand competition is lower than that under Cournot competition.
關聯 社會科學論叢, 12(1), pp.1-30
資料類型 article
dc.contributor 社會科學論叢-
dc.creator (作者) 張瑞雲-
dc.creator (作者) Chang, Ray-Yun-
dc.date (日期) 2018-06-
dc.date.accessioned 28-Mar-2019 10:35:45 (UTC+8)-
dc.date.available 28-Mar-2019 10:35:45 (UTC+8)-
dc.date.issued (上傳時間) 28-Mar-2019 10:35:45 (UTC+8)-
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/122710-
dc.description.abstract (摘要) 本文擴充Motta(1993,Journal of Industrial Economics)的模型,建立一個結合垂直產品差異性及網路外部性的模型,並藉以比較在Bertrand價格競爭與Cournot數量競爭下,廠商的最適品質選擇、市場均衡及社會福利的異同。當網路外部性夠大時,我們得到Motta(1993)一文所無法談及的結果:(1)高品質廠商的利潤在Bertrand均衡下將大於Cournot均衡下的結果;(2)低品質廠商的數量在Bertrand均衡下小於Cournot均衡下的結果;(3)生產者剩餘在Bertrand均衡下都將大於Cournot均衡下的結果。-
dc.description.abstract (摘要) This paper compares Bertrand and Cournot equilibria in a vertically differentiated duopoly with network externalizes and attempts to provide more inference than what obtained by Motta (1993, Journal of Industrial Economics). In addition to the results of Motta (1993), if the network externality is large enough, we show that (i) the profit of high-quality firm and producer surplus under Bertrand competition are higher than that under Cournot competition; (ii) the equilibrium quantity of low-quality firm under Bertrand competition is lower than that under Cournot competition.-
dc.format.extent 2958646 bytes-
dc.format.mimetype application/pdf-
dc.relation (關聯) 社會科學論叢, 12(1), pp.1-30-
dc.subject (關鍵詞) 網路外部性;垂直產品差異性;價格競爭;數量競爭-
dc.subject (關鍵詞) Network externalities;vertical product differentiation;Bertrand competition;Cournot competition-
dc.title (題名) 網路外部性對異質雙占廠商在不同競爭模式的均衡影響分析-
dc.title (題名) The Effect of Network Externalities on Price and Quantity Competition in a Vertically Differentiated Duopoly-
dc.type (資料類型) article-