The Impact of Information Disclosure on Consumer Behavior: Evidence from a Randomized Field Experiment of Calorie Labels on Restaurant Menus

In 2018, the U.S. adopted a nationwide law requiring that chain restaurants post calorie counts on their menus and menu boards. This has led to considerable interest in the extent to which providing calorie information leads consumers to choose healthier diets. To estimate the impact of calorie labeling, we conducted a randomized controlled field experiment in two full-service restaurants, in which the control group received menus without calorie counts and the treatment group received the same menus but with calorie counts. We estimate that the calorie labels resulted in a 3.0 percent reduction in calories ordered, with the reduction occurring in appetizers and entrées but not drinks or desserts. Exposure to the information also increased consumers’ support for requiring calorie labels by 9.6 percent. These results are informative about the impact of the new nationwide menu label requirement, and more generally contribute to the literature on the impact of information disclosure on consumer behavior.     

The potential of urinary androstdiene markers to identify 4-androstenediol (4-ADIOL) administration in athletes

Doping control laboratories accredited by the World Anti-Doping Agency (WADA) require criteria that allow endogenous steroids to be distinguished from their synthetic analogues in urine. Methodology based on "looking outside the metabolic box" was used in this study to identify diagnostic urinary markers of 4-androstenediol (4-ADIOL) administration. Androst-2,4-diene-17-one and androst-3,5-diene-17-one are proposed to be formed in urine from acid-catalyzed hydrolysis of 4-ADIOL sulfoconjugate, a major phase II metabolic product of 4-ADIOL. The presence of these markers in the routine gas chromatography-mass spectrometry (GC-MS) steroid screen was suitable to identify samples requiring confirmation by gas chromatography-combustion-isotope ratio mass spectrometry (GC-C-IRMS) - to measure the carbon isotope ratio (δ(13)C) of the androstdiene markers and confirm their likely synthetic origin based on depleted (13)C content.     

Searching for new markers of endogenous steroid administration in athletes: "looking outside the metabolic box"

A simple means of detecting the abuse of steroids that also occur naturally is a problem facing doping control laboratories. Specific markers are required to allow the detection of the administration of these steroids. These markers are commonly measured using a set of data obtained from the screening of samples by gas chromatography-mass spectrometry (GC-MS). Doping control laboratories further need to confirm identified abuse using techniques such as gas chromatography-combustion-isotope ratio mass spectrometry (GC-C-IRMS). An interesting urinary species was found while following the pharmacokinetics and changes to the steroid profile from single and multiple oral doses of the International Olympic Committee/World Anti Doping Agency (IOC/WADA) prohibited substance, dehydroepiandrosterone (DHEA). The urine samples collected from the administration studies were subject to GC-MS and GC-C-IRMS steroid analysis following cleanup by solid phase extraction techniques. A useful urinary product of DHEA administration was detected in the urine samples from each of the administration studies and was identified by GC-MS experiments to be 3alpha,5-cyclo-5alpha-androstan-6beta-ol-17-one (3alpha,5-cyclo). This compound occurs naturally but the concentrations of 3alpha,5-cyclo were elevated following both the single DHEA administration (up to 385 ng/mL) and multiple DHEA administrations (up to 1240 ng/mL), in relation to those observed prior to these administrations (70 and 80 ng/mL, respectively). A reference distribution of urine samples collected from elite athletes (n = 632) enabled the natural concentration range of 3alpha,5-cyclo to be established (0-280 ng/mL), with a mean concentration of 22 ng/mL. Based on this an upper 3alpha,5-cyclo concentration limit of 140 ng/mL is proposed as a GC-MS screening marker of DHEA abuse in athletes. GC-C-IRMS analysis revealed significant 13C depletion of 3alpha,5-cyclo following DHEA administration. In the single administration study, the delta13C value of 3alpha,5-cyclo changed from -24.3 per thousand to a minimum value of -31.1 per thousand at 9 h post-administration, before returning to its original value after 48 h. The multiple administration study had a minimum delta13C 3alpha,5-cyclo of -33.9 per thousand during the administration phase in contrast to the initial value of -24.2 per thousand. Preliminary studies have shown 3alpha,5-cyclo to most likely be produced from DHEA sulfate found at high levels in urine. The complementary use of GC-MS and GC-C-IRMS to identify new markers of steroid abuse and the application of screening criteria incorporating such markers could also be adapted by doping control laboratories to detect metabolites of androstenedione, testosterone and dihydrotestosterone abuse.     

Health economists' views of health policy

This article reports the views of a national survey of U.S. health economists on a series of questions ranging from mergers among health care providers to the profits of pharmaceutical manufacturers to fundamental health care reform. We find a high degree of agreement on issues of fact but considerable disagreement on issues that depend on values. Additional research may help to resolve some remaining disagreement about issues of fact but may do little to resolve disagreement over values. Results from this fall 2005 survey are compared with those from surveys conducted in 1989 and 1995.     

The Impact of the Philadelphia Beverage Tax on Prices and Product Availability

In recent years, numerous cities in the U.S. have enacted taxes on beverages to promote health and raise revenue. This paper examines the impact of Philadelphia's beverage tax, enacted in 2017, on the prices and availability of both taxed and untaxed beverages. Using original data we collected in late 2016 and again one year later, we estimate difference-in-differences regressions of the change over time in beverage prices and availability in stores in Philadelphia relative to stores in nearby counties. We find that, on average, distributors and retailers fully passed through the tax to consumers. Pass-through is higher for individual servings than for larger sizes. There is also heterogeneity in the pass-through rate among stores; it is greater among stores that are in higher-poverty neighborhoods, located farther from untaxed stores outside Philadelphia, and that are independent as opposed to part of national chains. We also find that the tax reduced the availability of taxed beverages and increased the availability of untaxed beverages, particularly bottled water, in Philadelphia stores.     

Morbid obesity and the transition from welfare to work.

This paper utilizes a rich longitudinal data set--the Women's Employment Study (WES)--to investigate whether obesity, which is common among women of low socioeconomic status, is a barrier to employment and earnings for current and former welfare recipients. We find that former welfare recipients who are both White and morbidly obese have been less successful in transitioning from welfare to work. These women are less likely to work at any survey wave, spend a greater percentage of months between waves receiving cash welfare, and have lower monthly earnings at each wave. The magnitude of the difference in labor market outcomes between the morbidly obese and those who are less heavy is in some cases similar in magnitude to the differences in these labor market outcomes between high school dropouts and graduates. In contrast, we find no such labor market differences associated with morbid obesity for African-American respondents. This paper documents the relationship between weight and labor market outcomes for the first time among the welfare population. In addition, it investigates whether the correlation for White females is due to unobserved heterogeneity. We find that after controlling for individual fixed effects, the point estimate of the correlation of morbid obesity and each of the labor market outcomes falls considerably and is no longer statistically significant. These results are consistent with unobserved heterogeneity causing the correlation between morbid obesity and labor market outcomes. Findings are similar after controlling for the respondent's mental and physical health.     

Captains of erudition

Abstract

W. A. Nielsen's book The Big Foundations is an informed survey of the American foundation scene. Writing from a vantage point within the citadels of big-time philanthropy, Nielsen takes a chatty and discursive approach to a subject that in fact deserves much more. It seems that the insider's privilege of access can be a handicap as well as an asset, and that a subject of this importance needs critical scrutiny from independent researchers.     

The Pass‐Through of Taxes on Sugar‐Sweetened Beverages to Retail Prices: The Case of Berkeley,California

Obesity and diet‐related chronic disease are increasing problems worldwide. In response, many governments have enacted or are considering taxes on energy‐dense foods. Perhaps the most commonly recommended policy is a tax on sugar‐sweetened beverages (SSBs). This paper estimates the extent to which a tax on SSBs is passed through to consumers in the form of higher prices. We examine the first city‐level tax on SSBs in the United States, which was enacted by the voters of Berkeley, California, in November 2014. We collected the prices of various brands and sizes of SSBs and other beverages before and after the implementation of the tax from a near‐census of convenience stores and supermarkets in Berkeley, California. We also collected prices from stores in a control city: San Francisco, where a similar voter referendum failed despite majority support. Estimates from difference‐in‐differences models indicate that, across all brands and sizes of products examined, 43.1 percent (95 percent confidence interval: 27.7 to 58.4 percent) of the Berkeley tax was passed on to consumers. The estimates also are consistent with cross‐border shopping. For each mile of distance between the store and the closest store selling untaxed SSBs, pass‐through rose 33.3 percent for 2 L bottles and 25.8 percent for 12‐packs of 12 ounce cans.