Premium
Endogenous product substitutability strategy under duopoly
Author(s) -
Wang Chan,
Nie Puyan,
Cui Ting
Publication year - 2019
Publication title -
managerial and decision economics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.288
H-Index - 51
eISSN - 1099-1468
pISSN - 0143-6570
DOI - 10.1002/mde.3033
Subject(s) - duopoly , economics , microeconomics , product (mathematics) , product differentiation , social welfare , welfare , cournot competition , geometry , mathematics , market economy , political science , law
This article develops endogenous product substitutability theory. With game theory approach, the effects of endogenous product substitutability are characterized. First, equilibrium under endogenous product substitutability is achieved. Second, product substitutability strategy promotes price, total outputs, and social welfare. Outputs under high‐efficiency firm's product substitutability are compared with those under low‐efficiency firm's product substitutability. Third, compared with the other cases, joint product substitutability improves price difference. Finally, the outputs of all firms under endogenous product substitutability are shown to be lower than the social optimality level. The policy implication is to encourage firms investing product substitutability.