文献类型：期刊文献

英文题名：Environmental certification in a differentiated duopoly

作者：Xia, Haiyang[1];Fan, Tijun[1];Lou, Gaoxiang[1]

机构：[1]East China Univ Sci & Technol, Sch Business, Shanghai, Peoples R China

年份：2021

卷号：34

期号：1

起止页码：650

外文期刊名：ECONOMIC RESEARCH-EKONOMSKA ISTRAZIVANJA

收录：;WOS:【SSCI(收录号:WOS:000573677900001)】；

基金：This work was supported by the National Natural Science Foundation of China (71972071, 71972070), and the Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：environmental certification; horizontal and vertical differentiation; two-dimensional competition

摘要：The articleaims to explore the role of horizontal product differentiation in promoting/hindering firm's participation in environmental certification. To this purpose, we consider a differentiated duopoly model where firms compete in both prices and environmental qualities. The result shows that when the level of horizontal differentiation relative to the degree of vertical differentiation is sufficiently high, only the symmetric equilibrium where both firms choose to or both choose not to certify their products exists. Asymmetric equilibrium (vertical dominance equilibrium) occurs when the level of horizontal differentiation relative to the degree of vertical differentiation is sufficiently low.