Shadow prices of agrochemicals in the Chinese farming sector: A convex expectile regression approach.

Autor: Zhou J; Technical University of Munich, Chair of Agricultural Production and Resource Economics, Alte Akademie 14, Freising, 85354, Germany. Electronic address: jiajun.zhou@tum.de., Mennig P; Technical University of Munich, Chair of Agricultural Production and Resource Economics, Alte Akademie 14, Freising, 85354, Germany. Electronic address: philipp.mennig@tum.de., Zhou; College of Economics and Management, China Center for Food Security Studies, Nanjing Agricultural University, No. 1, Weigang, Xuanwu District, Nanjing, 210095, China. Electronic address: zhoude@njau.edu.cn., Sauer J; Technical University of Munich, Chair of Agricultural Production and Resource Economics, Alte Akademie 14, Freising, 85354, Germany. Electronic address: jo.sauer@tum.de.
Jazyk: angličtina
Zdroj: Journal of environmental management [J Environ Manage] 2024 Aug; Vol. 366, pp. 121518. Date of Electronic Publication: 2024 Jul 09.
DOI: 10.1016/j.jenvman.2024.121518
Abstrakt: The use of agrochemical inputs has significantly enhanced agricultural yields in China; however, their excessive utilization has also caused a range of environmental issues. This paper examines the costs associated with reducing agrochemicals by employing shadow prices, which represent the value of the marginal product of agrochemicals, to further develop cost-effective environmental policy measures for reducing their usage. To this end, the shadow prices of agrochemicals have been assessed by adopting a newly developed convex expectile regression approach and using statistical data from 31 provinces in China spanning from 2005 to 2020. Furthermore, the present study investigates the disparities between shadow prices and market prices for different agrochemicals across various regions in China. The findings suggest that the costs of reducing chemical fertilizers are higher than those of reducing pesticides and plastic films. Moreover, the results indicate that central China exhibits relatively high potential for decreasing agrochemical usage. Finally, these findings can inform the Chinese government's restructuring of producer support and environmental policy in a cost-effective way to mitigate agrochemicals use in the future. Additionally, the research method employed in this study holds potential for extension to other agrochemicals-dependent countries.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 The Authors. Published by Elsevier Ltd.. All rights reserved.)
Databáze: MEDLINE
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