Traffic fatalities are the leading cause of mortality in the United States despite being preventable. While several policies have been introduced to improve traffic safety and their effects have been well documented, the role of transitory health shocks or situational factors at explaining...

During the nineteenth century the United States urbanized - the share of the population living in urban areas increased - and industrialized - the share of the labor force in manufacturing increased. Our survey of the literature and analyses of census data suggests that a key reason was the...