Schönberger and Ramge (2019), as "the reorganization of capitalism in the age of big data", suggest the advent of data capitalism and data-rich markets, where the driving factors of market behavior replace money with digital data. They pointed out the scale effects, the network effects and the data feedback effects as the three key effects acting in the data-rich market. However, their concern is the institutional design for market efficiency, and the mechanism of the above effects and the examination of the interaction are not enough. This study builds an integrated model of two-side market and data-rich market, and examines the mechanism and features of the interaction between cross-side network effects and data feedback effects.