Research on the Disturbance Sources of Vegetable Price Fluctuation Based on Grounded Theory and LDA Topic Model

Youzhu Li, Miao Zhang, Jinsi Liu, Bingbing Su, Xinzhu Lin, Yuxuan Liang, Yize Bao, Shanshan Yang and Junjie Zhang
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Youzhu Li: College of Public Administration, Huazhong Agricultural University, Wuhan 430070, China
Miao Zhang: College of Public Administration, Huazhong Agricultural University, Wuhan 430070, China
Jinsi Liu: College of Public Administration, Huazhong Agricultural University, Wuhan 430070, China
Bingbing Su: College of Public Administration, Huazhong Agricultural University, Wuhan 430070, China
Xinzhu Lin: College of Public Administration, Huazhong Agricultural University, Wuhan 430070, China
Yuxuan Liang: College of Public Administration, Huazhong Agricultural University, Wuhan 430070, China
Yize Bao: College of Public Administration, Huazhong Agricultural University, Wuhan 430070, China
Shanshan Yang: School of Art and Design, Wuhan Institute of Technology, Wuhan 430205, China
Junjie Zhang: Faculty of Arts, Hiroshima City University, Hiroshima 7313194, Japan

Agriculture, 2022, vol. 12, issue 5, 1-14

Abstract: Vegetables are an important element in people’s dietary structure, and the price fluctuation of vegetables has attracted more and more attention. The disturbance sources of vegetable price fluctuations are characterized by uncertain risks, environmental complexity, nonlinearity, self-organization and mutation. Analyzing the disturbance sources that affect vegetable price fluctuation is helpful to the establishment of early warning and regulation mechanisms of vegetable price risk. To address the problem that existing studies have not comprehensively and objectively clarified the disturbance sources of vegetable price fluctuations, this paper proposes a method of combining the LDA (Latent Dirichlet Allocation) topic model with grounded theory, constructs a system of vegetable price volatility disturbance source indicators and relationship matrix by improved conceptual lattice-weighted cluster method, obtains 23 disturbance sources indicators affecting vegetable price fluctuations in four aspects of supply, demand, natural environment and economic policy environment, and identifies six key factors through calculation and analysis. Through the research of this paper, a system of disturbance source indicators affecting vegetable price fluctuations is constructed, the internal connection of many disturbance sources of vegetable price fluctuations in a complex and uncertain environment is clarified, and key influencing factors are selected, thus facilitating the establishment of vegetable price risk warning models and regulation mechanisms.

Keywords: vegetable price fluctuation; complex uncertainty; LDA; grounded theory; DEMATEL (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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