Quality regulation attempts to ensure quality and to foster price competition by reducing vertical differentiation, but may also have unintended consequences through its effects on market structure. We study these effects in the context of pharmaceutical bioequivalence, which is the primary...

We study the effects of quality regulation on market outcomes by exploiting the staggered phase-in of bioequivalence requirements for generic drugs in Chile. We estimate that the number of drugs in the market decreased by 25%, average paid prices increased by 10%, and total sales decreased by...

We study the effects of quality regulation on market outcomes by exploiting the staggered phase-in of bioequivalence requirements for generic drugs in Chile. We estimate that the number of drugs in the market decreased by 25%, average paid prices increased by 10%, and total sales decreased by...