This paper analyses how prices of the original brand drugs are affected by generic entry in Brazilian pharmaceutical market. Microdata from three different sources are used. To estimate the parameters we used difference in difference and fixed effect models. The results suggest that the original brand prices decreased after generic entry. Also, the results suggest that these prices are sensible to the number ofgeneric drugs in their markets.
medicamentos genéricos; preços; indústria farmacêutica; microdados