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首页> 外文期刊>Journal of the Association of Environmental and Resource Economists >Evaluating Voluntary Environmental Programs with Spillover Effects
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Evaluating Voluntary Environmental Programs with Spillover Effects

机译：评估具有溢出效应的自愿环境计划

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摘要

Voluntary environmental programs have the potential to impact not only participants but also nonparticipants, through, for example, the dissemination of information about abatement technologies, thereby creating spillover effects. Standard program evaluation techniques do not accurately estimate program impacts in such cases. This paper presents a theoretical and empirical analysis of spillovers in a voluntary environmental program (VEP). The theoretical model identifies the key distinction between the impact of participation and the impact of the program, as well as the nature of the bias that results from failure to incorporate spillover effects. It also motivates the inclusion of spillovers in both the participation and outcome equations of the empirical model. Using data from EPA's 33/50 Program, we show that failure to account for spillovers can lead to significant underestimation of program impacts.
机译：自愿性环境方案有可能通过传播例如减排技术的信息，不仅影响参与者，而且影响非参与者，从而产生溢出效应。在这种情况下，标准程序评估技术不能准确地估计程序影响。本文介绍了自愿性环境计划（VEP）中溢出的理论和实证分析。理论模型确定了参与的影响与计划的影响之间的主要区别，以及因未能纳入溢出效应而导致的偏见的性质。它也促使溢出效应包括在经验模型的参与和结果方程中。使用来自EPA 33/50计划的数据，我们发现未能考虑溢出影响会导致对计划影响的严重低估。

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