Consumer behavior changes differently in emergencies. Understanding consumer food stockpiling behavior during COVID-19 pandemic can provide critical information for governments and policymakers to adjust inventory and response strategies. This paper analyzed consumer food stockpiling behavior, including the change of food reserve scale and willingness to pay for fresh food reserves in COVID-19. Our paper shows that the scale of food reserve extends from 3.37 to 7.37 days after the outbreak of COVID-19; if available, consumers on average are willing to pay 18.14 yuan (60.47%) premium for fresh products reserves. The result shows that food stockpiling behavior is fueled by a set of multiple motivations and subjective risk perception. Female, high education level and high-income consumers were more likely to reserve larger scale food reserves, but consumers' willingness to pay for fresh food reserves is determined by income. This study was conducted when new infection cases continued to rise in the world. The story of food stockpiling during the COVID-19 pandemic in China is similar with the rest of world. Consumer stockpiling behavior in China can also be expanded to other countries to predict the change of food demand and understand more about consumer preferences in emergencies.

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A COVID-19 vaccine is the key to beating the virus, and effective vaccines are going to be available in the near future. It is urgent to estimate the acceptability of COVID-19 vaccines and their value to individuals, in order to develop an effective public vaccination strategy. Based on a survey of 1,188 randomly selected respondents in China, we analyzed Chinese consumers’ willingness to get a COVID-19 vaccine and their willingness to pay for it. We find that 79.41% of the respondents are willing to get vaccinated in China, and the average amount that they’re willing to pay for a COVID-19 vaccine shot is 130.45 yuan. However, though the elderly are at higher risk of infection and the disease could be fatal for them, they are less willing to get the vaccine and not willing to pay as much for the shot. Subsidies and health communication concerning COVID-19 vaccines should be provided in order to expand vaccination coverage.

Purpose -This paper aims to analyze the factors that influence urban consumers' attitudes towards food safety after the melamine scandal. Design/methodology/approach -Based on the research about the attitudes of urban consumers in Nanjing towards the safety of milk powder after the melamine scandal in 2008, this paper adopts the ordered logit model to test which factors significantly influence consumers' attitudes. Findings -The findings suggest that: first, there is a common concern among consumers about the safety of milk powder after the melamine scandal; second, according to the research, the concern is in inverse relation to the level of educational attainment, consumers' awareness of food safety incidents and their opinion of governments' action after the incident. Moreover, those who always have a concern about the safety of the alternatives to milk powder are more easily affected. Originality/value -Different from other researches, the paper focuses on consumers' attitudes towards food safety by studying a specific case, namely the melamine scandal.

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