The price effect of allowing non-pharmacy outlets to sell OTC drugs in Korea

By the amendment of the Pharmaceutical Affairs Act in 2012, non-pharmacy outlets (confined to 24-hour convenience stores) in Korea were permitted to sell 13 over-the-counter (OTC) drugs. This article empirically examines the effect of the regulatory reform on OTC drug prices. To do so, we use county-level price data of 7 OTC drugs for the years of 2012 and 2013. Among them, 2 OTC drugs are available at non-pharmacy outlets due to the deregulation, and the remaining 5 are still only available at pharmacies. Employing a difference-in-differences estimation strategy, we find that after the regulatory reform, prices of the 2 OTC drugs increased by only 1.1% while those of the rest 5 increased by 6.5%. This result has implications for the government's policy of designating non-pharmacy outlets that can sell OTC drugs from the viewpoint of consumer welfare.