A Natural Experiment Evaluating the Effect of a Minimum Wage Increase on Obesity and Diet-Related Outcome

评估最低工资增长对肥胖和饮食相关结果影响的自然实验

• 批准号: 10379361
• 负责人: Caitlin Eicher Caspi
• 金额: $ 58.85万
• 依托单位: UNIVERSITY OF CONNECTICUT STORRS
• 依托单位国家: 美国
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-08-23 至 2025-03-31
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/10379361
• 关键词: Affect; American; Behavioral; Black Populations; Body mass index; Businesses; Chronic Disease; Cities; Communities; County; Diet; Economic Policy; Employee; Expenditure; Food; Food Assistance Programs; Government; Health; Health Food; Healthcare; Height; Hispanic; Hispanic Populations; Hour; Household; Housing; Individual; Laws; Link; Low income; Measurement; Measures; Mediating; Mediator of activation protein; Minnesota; Natural experiment; North Carolina; Not Hispanic or Latino; Obesity; Outcome; Participant; Personal Satisfaction; Physical activity; Policies; Population; Positioning Attribute; Prospective Studies; Quasi-experiment; Recreation; Reduce health disparities; Reporting; Research; Risk; Risk Factors; S-nitro-N-acetylpenicillamine; Schools; Sleep; Special Supplemental Nutrition Program for Women, Infants, and Children; Step Tests; Stress; Surveys; Testing; Time; Transportation; United States; United States Department of Agriculture; Universities; Wages; Weight; cohort; cost; design; ethnic minority; food insecurity; food security; fruits and vegetables; health equity; high risk; improved; member; nutrition; obesity prevention; obesity risk; population health; preempt; primary outcome; prospective; psychosocial; racial and ethnic; sugar; sweetened beverage

Minimum wage laws are increasingly being recognized as a possible policy lever for improving population health and health equity, with the potential for implementation at the local, state, and national levels. On June 30, 2017, Minneapolis, Minnesota became the 40th local jurisdiction to set the minimum wage above the state level. The city will incrementally increase the minimum wage to $15 an hour by July 1, 2022 for all firms with greater than 100 employees; minimum wage in smaller firms will increase to $13.50 during this time period. The ordinance is expected to increase wages among the 71,000 workers likely to be affected, who are disproportionately non-Hispanic black and Hispanic workers. The available evidence suggests that minimum wage laws may be associated with a range of health outcomes. This includes obesity, as increasing wages can improve food security and reduce cost constraints for purchasing healthier foods. However, existing studies linking wages and weight have design weaknesses that limit causal inference and the ability to identify causal mechanisms. This study, which has a prospective quasi-experimental design with a strong counterfactual condition, is the next step for testing whether and how an increase in minimum wage results in improved obesity-related outcomes among low-wage workers. Throughout the 4.5-year implementation of the Minneapolis minimum wage ordinance, we will follow a cohort of low-wage workers (those earning less than $10 an hour at baseline) in a natural experiment, using a difference-in-difference design to compare a panel of obesity-related measures in a cohort of low-wage workers in Minneapolis (n = 400) and similar workers in a matched control community (n = 400), Raleigh, NC. The control city has a statewide preemption law which prohibits local minimum wage increases. Measures for all individuals will be collected at baseline (T0) and after 5 incremental wage increases (T1-T5) through June 2022. The study aims to test the difference in change in body mass index (BMI, the primary outcome) between individuals in the two conditions, as assessed by anthropometric height-weight measurements. We will also test the difference in change in the two conditions for a range of nutrition-related outcomes, including purchases of healthier and less healthy foods (measured by food purchase receipts), food insecurity (measured by a 6-item USDA measure), and participation in government food assistance programs (measured by participant survey). Finally, we will test other behavioral and psychosocial mechanisms through which wages might affect obesity, and explore spending changes in household health-related expenses over time. Minimum wage laws are a potential upstream approach to prevent obesity, and these policies may be uniquely positioned to reduce health disparities because they intervene on a population (lower-income, high racial/ethnic minority) at the highest risk for poor health. This natural experiment offers a time-sensitive opportunity to test policy effects and contribute a rare health-oriented perspective to the national discourse around the effects of an economic policy.

最低工资法越来越被认为是一种可能的政策杠杆

项目成果

Examining Changes in Food Security, Perceived Stress, and Dietary Intake in a Cohort of Low-Wage Workers Experiencing an Increase in Hourly Wage.

检查一群经历小时工资增长的低工资工人的粮食安全、感知压力和膳食摄入量的变化。

• DOI: 10.1177/15248399221128005
• 发表时间: 2024
• 期刊: Health promotion practice
• 影响因子: 1.9
• 作者: Chapman,LeahElizabeth;Berkowitz,SethA;Ammerman,Alice;DeMarco,Molly;Ng,ShuWen;Zimmer,Catherine;Caspi,CaitlinE
• 通讯作者: Caspi,CaitlinE