Does China’s Municipal Solid Waste Source Separation Program Work? Evidence from the Spatial-Two-Stage-Least Squares Models

Liange Zhao, Jianfeng Zou and Zhijian Zhang
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Liange Zhao: School of Economics, Zhejiang Gongshang University, 18 Xuezheng Road, Hangzhou 310018, China
Jianfeng Zou: School of Economics, Zhejiang Gongshang University, 18 Xuezheng Road, Hangzhou 310018, China
Zhijian Zhang: School of Economics, Zhejiang Gongshang University, 18 Xuezheng Road, Hangzhou 310018, China

Sustainability, 2020, vol. 12, issue 4, 1-20

Abstract: This paper evaluates the impact of the second municipal solid waste (MSW) source separation program on municipal solid waste generation (MSWG) in China. Without considering the spatial interactions between cities, the second MSW source separation program has a nonsignificant adverse effect on the per capita municipal solid waste generation (PMSWG). Relaxing the stable-unit-treatment-value assumption (SUTVA), which holds in most of the previous estimation literature on treatment effects, involving the spatial spillover effect among cities, as well as correcting the endogenous local policy has a significantly negative but not robust impact on the PMSWG. The estimation results of the generalized nesting spatial regression models (GNS) imply that the spatial interaction characteristics among Chinese prefecture-level cities may, if neglected, lead to underestimation of the reduction effects of the second MSW source separation policy on the absolute amount of PMSWG. More importantly, our study indicates that although not all the spatial econometric models support the significant reduction effect of source separation on the absolute amount of PMSWG, the source separation program significantly reduces the relative amount of PMSWG, and this result is robust in all spatial models.

Keywords: Spatial-two-stage-least squares models; the second MSW source separation program in China; program evaluation (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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