Before revision:  In particular, we provide the stability relation between the market clearing price for the heterogeneous agents and that for the homogeneous mean-field limit ] .
After revision:  In particular, we provide the stability relation between the market clearing price for the heterogeneous agents and that for the homogeneous mean-field limit ]. As an important byproduct, we get the direct estimate on the difference of the equilibrium price between the two markets; one consisting of heterogeneous agents of finite population size and the other of homogeneous agents of infinite population size .