价格上限对市场结构和社会福利的影响

以往文献在均匀分配假定下探讨价格上限对市场结构和社会福利的影响.拓展上述假定,在收入分配为右偏态假定下,探讨价格上限能否扩大市场覆盖面、增加消费者剩余、提升社会福利.结果发现,价格上限政策虽能扩大市场覆盖面,但会使整体消费者剩余和社会福利下降,造成福利损失,且价格上限政策越严厉,福利损失越大.提高收入分配水平,则能达到既扩大市场覆盖面,又提升消费者剩余和社会福利的目的.

The Impact Caused by Price Ceiling on Market Structure and Social Welfare

The past papers assuming consumer income to be evenly distributed use duopoly model for analyzing the impact on the social welfare caused by price ceiling.Changing this assumption and assuming the income distribution is a rightly skew one.It is explored in this paper whether the price ceiling can expand the market coverage and increase the social welfare or not.It is found that price ceiling can expand the market coverage,however,consumer surplus and the whole social welfare may be reduced and give rise to ...