Evaluating agricultural catastrophic risk
Abstract
Purpose
The purpose of this paper is to provide an evaluation method for agricultural catastrophic risk.
Design/methodology/approach
Data on agricultural disaster loss are collected based on hectares covered by natural disasters, hectares affected by natural disasters, and hectares destroyed by natural disasters using the standard process. Peak over threshold (POT) approach based on the extreme value theory is used to model the distribution of agricultural catastrophic loss, and value at risk (VaR) is used to assess agricultural catastrophic risk.
Findings
This paper provides an approach for collecting agricultural loss data and modelling probability distribution of agricultural catastrophic loss, which is promising for agricultural catastrophic risk evaluating. As the quantified measurement of agricultural catastrophic risk, VaR is observed to be appropriate and feasible. Results of empirical research demonstrate that drought catastrophe negatively affects grain‐production in the northeast region of China; in particular, the drought catastrophic risk is severe within a 100‐year scenario and thus is expected to recur.
Originality/value
To provide an accurate agricultural catastrophic risk assessment, data collection based on disaster occurrence instead of crop yield, and VaR is used in this paper.
Keywords
Citation
Xu, L., Zhang, Q. and Zhang, X. (2011), "Evaluating agricultural catastrophic risk", China Agricultural Economic Review, Vol. 3 No. 4, pp. 451-461. https://doi.org/10.1108/17561371111192310
Publisher
:Emerald Group Publishing Limited
Copyright © 2011, Emerald Group Publishing Limited