Measuring Perceived Performance of the Food System and Consumer Food‐Related Welfare
研究开发多项目加总量表来测量食品系统的感知表现和消费者食品相关福利指数，基于美国和英国全国样本验证了量表的信度和效度，发现两国消费者认为食品系统表现不佳。
The paper explores the use of multi‐item summated scales for the measurement of the perceived performance of the food system and of an index to measure consumer food‐related welfare. Scales are developed that encompass a range of factors that influence the welfare consumers derive from food, including food safety, convenience, ethical issues, health and nutrition, taste and cost. These scales are applied to a national sample of food consumers in the United States and the United Kingdom. On the basis of the survey results, there is evidence that the scales are both reliable and valid measures of the perceived performance of the food system in both countries. An index of consumer food‐related welfare is developed that weights the various performance measures according to respondents' measure of importance. Survey respondents judge that the food system is not performing particularly well in either country. Although more work is required on the use of summated multi‐item scales for this purpose, the results suggest that this is a potentially useful approach that provides relevant information on the impact of different elements of the food system on consumer welfare.