企業環境社會責任的福利分析內生市場結構之影響

Welfare Analysis of Environmental Corporate Social Responsibilities : the Impacts of Endogenous Market St ructure

This article aims to discuss the possible impact of eco-friendly behaviors on environmental quality and social welfare under different market structures. First of all, when the number of firms is fixed in the short term, if the marginal pollution damage of product production is serious, the eco-friendly behaviors of ECSR firms is indeed beneficial to improving environmental quality and social welfare. If ECSR firms have higher market shares, its own profits may increase as it cares more about the environment. Secondly, when normal firms are free-entry in the long run, the stronger the motivation of ECSR firms to care about the environment will only lead to a decline in profits and the inability to reduce pollution, and social welfare will deteriorate accordingly. Finally, under an open economy, if the marginal damage is higher, the domestic government will be motivated to lower import tariffs to encourage foreign firm to produce more. At this time, domestic environmental quality may be improved as a result.