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The environmental Kuznets curve in a world of irreversibility

机译:不可逆转世界中的环境库兹涅茨曲线

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This paper develops an overlapping generations model where consumption is the source of polluting emissions. Pollution stock accumulates with emissions but is partially assimilated by nature at each period. The assimilation capacity of nature is limited and vanishes beyond a critical level of pollution. We first show that multiple equilibria exist. More importantly, some exhibit irreversible pollution levels although an abatement activity is operative. Thus, the simple engagement of maintenance does not necessarily suffice to protect an economy against convergence toward a steady state having the properties of an ecological and economic poverty trap. In contrast with earlier related studies, the emergence of the environmental Kuznets curve is no longer the rule. Instead, we detect a sort of degenerated environmental Kuznets curve that corresponds to the equilibrium trajectory leading to the irreversible solution.
机译:本文建立了一个重叠的世代模型,其中消费是污染排放的来源。污染存量随着排放而累积,但在每个时期都会被自然吸收。自然的同化能力是有限的,并且会超过临界污染水平而消失。我们首先证明存在多重均衡。更重要的是,尽管有减排活动,但有些仍表现出不可逆的污染水平。因此,简单地进行维护并不一定足以保护经济避免趋向具有生态和经济贫困陷阱特性的稳定状态。与早期的相关研究相比,环境库兹涅茨曲线的出现已不再是规则。取而代之的是,我们检测到一种退化的环境库兹涅茨曲线,该曲线与导致不可逆解的平衡轨迹相对应。

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  • 来源
    《Economic Theory》 |2009年第1期|p.57-90|共34页
  • 作者

    Fabien Prieur;

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