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1. Panic buying? Food hoarding during the pandemic period with city lockdown
H. Holly WANG, HAO Na
Journal of Integrative Agriculture    2020, 19 (12): 2916-2925.   DOI: 10.1016/S2095-3119(20)63448-7
摘要121)      PDF    收藏
Food hoarding is prevalent during the COVID-19 pandemic.  To investigate the mechanism of urban consumers’ food hoarding behaviors, we categorize hoarding motives into rational and irrational ones.  Using random online survey samples from three cities in China, we employ the multivariate probit model to investigate the rational and irrational motives on food hoarding behavior.  Our results confirmed the existence of both rational and irrational food hoarding, and also found factors attributing to the different buying behaviors.  The amount of food at hand and the expectation on the infection possibility of COVID-19 are two major factors affecting rational hoarding.  Bad mood and herd psychology are factors contributing to panic buying.  This study provides an empirical evidence to support intervention policies aiming at mitigating panic buying behavior. 
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2. Welfare and Market Impacts of Food Safety Measures in China: Results from Urban Consumers’ Valuation of Product Attributes
David L. Ortega, H. Holly Wang , Nicole J. Olynk Widmar
Journal of Integrative Agriculture    2014, 13 (6): 1404-1411.   DOI: 10.1016/S2095-3119(13)60676-0
摘要1336)      PDF    收藏
This study provides an economics assessment of various food safety measures in China. A choice experiment approach is used to elicit Chinese consumer preferences for various food safety attributes using data from a 2008 urban consumer survey. An alternative welfare calculation is used to model aggregate market impacts of select food safety measures. Our results show that the largest welfare gains are found in the current government-run certification program. The implementation of a third-party certification system, a traceability network and a product label would generate significant value and would help reduce current system inefficiencies in China. This study builds on previous research and provides an alternative approach for calculating consumer valuation of safety and quality attributes that can be used to estimate aggregate economic and welfare impacts.
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