Using cross-market data on yield to maturity,this paper constructed an econometric model to find out the price differences between Inter-bank security market and exchange security market by introducing a dummy variable to capture the effect imposed by different market on yield to maturity.

However, within the higher integration of global capital markets and more opened opportunities of across markets transaction, the stock price differential between domestic and foreign stock markets should also be considered as a factor which determines the level of capital flow.

In respect of the skew of the optimal separating hyperplane and the generalization error bound that exist in the practical application of support vector machine,this paper introduces the total margin algorithm and different cost algorithm,which improves the standard support vector machine.

In the time of fast urbanization,this paper builds up an analytic framework about the determinants of intercity residential land price differences.

Upon the reviews, this paper concludes that the researches of Price Differences between A-share and B-share of Chinese Stock Market can be improved in some respects.