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"The NBER Bulletin on Aging and Health provides summaries of publications like this. You can sign up to receive the NBER Bulletin on Aging and Health by email. This study examines racial, ethnic and gender differentials in physical activity. Individuals engage in physical activity during leisure-time and also during in many other activities such as walking to work, home maintenance, shopping and child care. Physical activity also occurs on the job is this is referred to as work physical activity. Prior studies have shown that non-work physical activity has a positive impact on health while work physical activity has a negative impact on health. Many prior studies have relied primarily on leisure-time physical activity, which typically constitutes only about 10% of non-work physical activity and does not capture specific information on the intensity or duration of the activity. This study addresses these limitations by constructing measures of physical activity from the American Time Use Surveys, which are all-inclusive and capture the duration of each activity combined with its intensity based on the Metabolic Equivalent of Task (MET). Non-work physical activity tends to be significantly lower for Blacks, Hispanics, other racial groups than for Whites and lower for males than for females. These adjusted differentials are consistent with racial, ethnic and gender differentials in health. About 25-46% of the differentials in non-work physical activity can be attributed to differences in education, socio-economic status, proxies for time constraints, and locational attributes"--National Bureau of Economic Research web site

"Over time, increases in hours of work per capita have created the intuitively plausible notion that there is less time available to pursue social interactions. The specific question addressed in this paper is the effect of hours of work on social interaction. This is a difficult empirical question since omitted factors could increase both hours of work and social interaction. The approach taken in this paper utilizes an exogenous decline in hours of work in France due to a new employment law. The results clearly show that the employment law reduced hours of work but there is no evidence that the extra hours went to increased social interactions. Although hours of work are not an important determinant of social interaction, human capital is found to be important. The effect of human capital, as measured by education and age, is positive for membership groups but negative for visiting relatives and friends. Also, contrary to expectations, there are no important differences in the determinants of social interaction by gender, marital status or parent status. Finally, a comparison between France and the US show that the response to human capital and other variables are much the same in both nations"--National Bureau of Economic Research web site

The effects of advertising on cigarette and alcohol consumption are controversial, and research on the subject has produced mixed results. An economic theory underlying the general relationship between advertising and consumption can help explain what type of data is needed to study this question. Studies that use national data on annual advertising expenditures measure advertising at a high level with little yearly change and are likely to find no effect on consumption. In contrast, studies that use local-level data measured over the course of a year find wide variation in the level of advertising and are likely to conclude that advertising increases consumption. To mitigate consumption increases, some countries and localities have tested advertising bans or counteradvertising campaigns. Studies of advertising bans show a decrease in consumption to some degree when intervening factors are controlled. Counteradvertising likewise is found to reduce consumption. Policymakers can choose from various combinations of advertising bans, counteradvertising, and advertising taxation to curb consumption.