This paper examines the driving factors of liquidity allocation between local and foreign dual listings. We first identify and disentangle four theoretical sources of liquidity re-allocation: (1) the stage of economic development, (2) the regulatory environment, (3) the maturity of the capital market, and (4) the degree of market integration into the international capital market of a company's home country. Using data for the period 1992 to 2010, the empirical results suggest that the fraction of trading in the foreign listing decreases with a higher degree of stock market integration and a more mature local capital market. The analysis of individual cross listings reveals that an improvement of a country's economic development and regulatory environment directly lead to a reallocation of liquidity away from the foreign back to the local listing. The liquidity of the local listing is found to significantly increase over time, especially for stocks listed in less developed capital markets, while liquidity in the foreign listing decreases only slightly.