Substitution of healthy for unhealthy beverages among college students. A health-concerns and behavioral-economics perspective.
Excessive intake of sugar-sweetened beverages by undergraduates is closely related to the increasing prevalence of obesity, making investigations of the substitution of healthy for unhealthy beverages imperative. According to the concept of price elasticity in behavioral economics, the choice of healthy over unhealthy behaviors is facilitated by increasing the cost of less-healthy alternatives or reducing the cost of healthier alternatives. Furthermore, evoking health concerns by using health claims may induce substitution of healthy for unhealthy beverages. A total of 108 18-22-year-old undergraduates participated in a laboratory experiment and were given a certain amount of money and allowed to purchase a healthy beverage and a less-healthy beverage with or without receiving health claims. Increasing the price of a type of beverage was shown to reduce purchases of that beverage type and lead to substitution with the alternative type. Moreover, the effect of price elasticity on healthy beverage substitution was more pronounced when participants' health concerns were evoked. The results suggest that lowering the cost of alternative commodities and evoking health concerns by health-related claims would foster the substitution of healthier for unhealthy beverages among college students.
Yang
Chao-Chin
CC
Department of Chinese Culinary Arts, National Kaohsiung Hospitality College, 1 Sung-Ho Rd., Kaohsiung 812, Taiwan, ROC.
Chiou
Wen-Bin
WB
D000293:Adolescent; D001628:Beverages / Q000191:economics*; D015992:Body Mass Index; D003365:Costs and Cost Analysis; D005260:Female; D005518:Food Preferences; D015438:Health Behavior; D006293:Health Promotion / Q000191:economics*; D006801:Humans; D008297:Male; D009765:Obesity / Q000191:economics / Q000453:epidemiology / Q000517:prevention & control; D012044:Regression Analysis; D013334:Students; D055815:Young Adult