关键词: 面板数据, 二元经济, 市场化, 一价定律

Abstract: China is still at the socialism initial stage, and must increasingly enhance the marketization degree of the domestic economy. But, dual economy is typical characteristic of Chinese economy. In the consideration of dual economy, this paper applies one price law theory to general consumer price index and general retail price index, and separately inspects the city department and the countryside department’s marketization degree. Through the unit root test of panel data, the city department and the countryside department’s sample data has good stability, which explains one price law is tenable in the domestic market and the market degree of the city department is higher to the countryside department. Separately comparing the result of tests with two price indexes, this paper fully confirms general retail price index is more strengthen to make one price law tenable, which means that enhancing the fluidity of commodity, reducing the transaction cost is advantageous to one price law establishment, and is advantageous to enhance the marketization degree of domestic economy.

Key words: Panel Data, Dual economy, Marketization, One price law