潔淨技術的環境與產業政策協調

On the Coordination of Environmental and Industrial Policies of Clean Technology

本研究探討了一個使用污染技術的在位者和幾個使用清潔技術的進入者框架下的環境和產業政策。我們表明，在限制清潔廠商進入的情況下中，福利最大化政策是採取環境與補貼雙重政策：以不同的補貼率對污染技術公司和清潔技術公司給予產出補貼；排放稅和產出補貼政策的福利排序，必須取決於採用清潔技術的企業數量。

This research explores the environmental and industrial policy under the framework of an incumbent who uses dirty technology and several entrants who use clean technology. We show that in the regulated entry, the best welfare maximization policy is dual policy: to give output subsidies the dirty technology firm and the clean technology firms with differential subsidy rate; the ranking of the welfare of emission tax and output subsidy must depend on the number of firms that adopt clean technologies.