In this paper, we investigate the change in advertising patterns of competing pharmaceutical firms in the short period after a new entrant, Crestor, is petitioned to be removed from the Statin drug market. Using physician-level data, we find that Crestor’s main competitor, Lipitor, increases...

This paper provides the first empirical study of cigarette demand using detailed individual level data that includes consumers' cigarette brand choice. By estimating and comparing the effects of advertising and price on cigarette demand for different age groups, I find that young adults are less...