How information symmetry promotes pesticide reduction: theoretical models, typical cases and regulatory strategies

doi:10.3969/j.issn.1004-1524.2022.06.23

Acta Agriculturae Zhejiangensis ›› 2022, Vol. 34 ›› Issue (6): 1326-1336.DOI: 10.3969/j.issn.1004-1524.2022.06.23

• Agricultural Economy and Development • Previous Articles Next Articles

How information symmetry promotes pesticide reduction: theoretical models, typical cases and regulatory strategies

SHAO Yitian()

China Institute of Regulation Research, Zhejiang University of Finance & Economics, Hangzhou 310018, China

Received:2021-08-22 Online:2022-06-25 Published:2022-06-30

Abstract

Abstract:

The development of pesticide has promoted the progress of agriculture in China, but abuse of pesticide has also caused many negative external effects. How to reasonably apply pesticide is a practical problem for China’s agricultural sustainable development. In the present study, the theoretical model of pesticide reduction was constructed by referring to nuclear decay law, and the influencing factors of farmer’s profits and guidance of pesticide application behavior under different pesticide information conditions were analyzed. A typical case of “Lishui Shangeng” was taken to analyze the realization of pesticide reduction by pesticide information symmetry. The results showed that “government external empowerment & market endogenous drive” is a feasible path to achieve sustainable pesticide reduction, and the key is to ensure the information symmetry of pesticide in agricultural products. Therefore, the focus of pesticide reduction regulation strategy should be transferred from the specific control of pesticide application to the creation of information symmetry market environment.

Key words: information symmetry, pesticide reduction, theoretical model, “Lishui Shangeng” brand, regulation strategy

CLC Number:

F304.7

SHAO Yitian. How information symmetry promotes pesticide reduction: theoretical models, typical cases and regulatory strategies[J]. Acta Agriculturae Zhejiangensis, 2022, 34(6): 1326-1336.

Figures/Tables 1

References 48

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核心变量 Key variable	信息条件 Information condition	利润最大值时的取值 Value under maximum profit	药品推荐值 Recommended value	农户策略 Farmers’ strategy	农残变化 Changes of pesticide residues
农药施用强度Pesticide application intensity	不对称Asymmetry	260	120	适当提高农药施用强度 Elevate pesticide application intensity	增加Increase
农药施用强度Pesticide application intensity	对称Symmetry	10.2	120	显著降低农药施用强度 Decrease pesticide application intensity	降低Decrease
农药实际间隔期 Actual interval	不对称Asymmetry	0~6	7	适当缩短实际间隔期 Shorten actual interval	增加Increase
农药实际间隔期 Actual interval	对称Symmetry	9.7	7	适当延长实际间隔期 Extend actual interval	降低Decrease
农药安全间隔期 Recommended interval	不对称Asymmetry	∞	10	选择较长安全间隔期 Choose long recommended interval	不确定Not sure
农药安全间隔期 Recommended interval	对称Symmetry	120	10	选择较长安全间隔期 Choose long recommended interval	不确定Not sure

核心变量 Key variable	信息条件 Information condition	利润最大值时的取值 Value under maximum profit	药品推荐值 Recommended value	农户策略 Farmers’ strategy	农残变化 Changes of pesticide residues
农药施用强度Pesticide application intensity	不对称Asymmetry	260	120	适当提高农药施用强度 Elevate pesticide application intensity	增加Increase
农药施用强度Pesticide application intensity	对称Symmetry	10.2	120	显著降低农药施用强度 Decrease pesticide application intensity	降低Decrease
农药实际间隔期 Actual interval	不对称Asymmetry	0~6	7	适当缩短实际间隔期 Shorten actual interval	增加Increase
农药实际间隔期 Actual interval	对称Symmetry	9.7	7	适当延长实际间隔期 Extend actual interval	降低Decrease
农药安全间隔期 Recommended interval	不对称Asymmetry	∞	10	选择较长安全间隔期 Choose long recommended interval	不确定Not sure
农药安全间隔期 Recommended interval	对称Symmetry	120	10	选择较长安全间隔期 Choose long recommended interval	不确定Not sure

How information symmetry promotes pesticide reduction: theoretical models, typical cases and regulatory strategies

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