In this study, we calculated the Price Index and Cognition Difference Index(PICDI) by analyzing the difference between the real food price index and consumer sentiment price. Our analysis of the PICDI calculated in this study shows that most consumers perceive the consumer sentiment price index higher than the real food price index. We also analyzed the factors influencing this difference. The result shows that both the real food price index and consumer sentiment price are influenced by gender, occupation, purchasing frequency, purchasing location, income, and expenditure. |