在报价驱动交易机制下，买卖价差由指令处理成本、存货成本和非对称信息成本构成。
In a quote-driven market, bid-ask spread is composed of order processing costs, stock holding costs and asymmetric information cost.
在此基础上，探讨了我国二板市场应该采取何种交易机制，论证了做市商报价驱动机制是二板市场交易机制的首选。
Based on these, it discusses which trading mechanism should be chosen in our country's secondary board market with the conclusion that the market-maker rule should be the best choice.
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