证券市场的层次结构与中国金融市场改革

发达的证券市场都表现出多层次结构，大量的理论和经验证据表明；资本市场，尤其是中小型资本市场要受到逆向选择行为和高昂的直接融资成本的影响；而市场结构的型式，例如，二板市场是否平行于交易所市场，是否采取交易商制度等则成为影响小型资本市场成败的决定性因素。这些根据为我国的金融市场改革提供了理论参考和经验借鉴。

The Structural Hierarchy of Securities Market and the Reform of China's Financial Market

The developed securities markets display multi-level structure. Great many theories and experiences have proved that, the capital markets, especially those small and medium-sized ones, will be influenced by the behavior of adverse selection and transacting costs of direct financing. Whereas the patterns of market structure, for example, whether the second sector market is parallel with the exchange market and whether the dealers' system is adopted, become the decisive factor bearing on the success or failure of the small-sized capital markets. These evidences have provided theoretical reference and practical experiences for our financial market reform.