This thesis studies the price discrimination through the drug\u27s market. Using the data from the USA and Chinese drugs\u27 markets, we are looking for the factors what might affect the price discrimination. Counting the price per mg/ml and classifying the drugs by the diseases, we find that the price discrimination of the anti-infective drugs is the smallest in both countries, the drugs\u27 prices are positively related to the price discrimination, and the standard deviation of the American drug\u27s prices is smaller than the standard deviation of the Chinese drug\u27s prices
