关键词: 市场挤兑, 再制造, 环境税, 社会福利

Abstract: In this paper, a two-stage model is employed to study the cycle utilization of express packaging materials under the government’s environmental taxation policy. The optimal total profit and total carbon emissions under traditional and green operations strategies are compared and the optimal strategy choice is characterized under different environmental tax levels. Our theoretical results show that when the fixed cost of setting up the collection system is sufficiently high, with the increase of environmental tax level, it is not always optimal to choose green strategy. Meanwhile, the optimal total carbon emissions may not be lowered even green strategy is chosen. It is suggested that accompanying with appropriate fixed cost subsidies, environmental taxation can be used as an efficient mechanism to motivate the adoption of green strategy and achieve a win-win situation between economic and environmental benefits. By introducing the external cost of unit carbon emission, the optimal socially optimal environmental tax level is discussed. Our numerical results show that under certain conditions a triple-win situation among economic, environmental and social benefits can be achieved.

Key words: market cannibalization, remanufacturing, environmental tax, social welfare