Sustainability for a greener economy

IF 2 4区经济学 Q2 ECONOMICS

Economics Letters Pub Date : 2026-10-01 Epub Date: 2026-10-06 DOI:10.1016/j.econlet.2026.113288

Xinyuan Zhong, Yingxian Tan, Xiang Gao

引用次数: 0

Abstract

We introduce a sustainability constraint into a two-sector production economy with green and brown capital, requiring the welfare measure to be non-decreasing over time. The constraint binds only when the brown capital share is high. When it binds, the planner reduces current consumption and reallocates resources toward investment, especially green investment. The constraint also lowers the risk-free rate and raises the risk premium and Tobin’s

q

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可持续发展促进绿色经济

我们将可持续性约束引入到具有绿色和棕色资本的两部门生产经济中，要求福利措施不随时间减少。只有当棕色资本份额很高时，约束才会生效。当两者结合时，规划者减少当前的消费并将资源重新分配给投资，尤其是绿色投资。约束也降低了无风险利率，提高了风险溢价和托宾q。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Economics Letters ECONOMICS-

CiteScore

3.20

自引率

5.00%

发文量

348

审稿时长

30 days

期刊介绍： Many economists today are concerned by the proliferation of journals and the concomitant labyrinth of research to be conquered in order to reach the specific information they require. To combat this tendency, Economics Letters has been conceived and designed outside the realm of the traditional economics journal. As a Letters Journal, it consists of concise communications (letters) that provide a means of rapid and efficient dissemination of new results, models and methods in all fields of economic research.