The conclusion is that insider-trading decreases the efficiency ofstock price and the key ofregulation is to urge the symmetry distribution of information between the participants of the market.
研究结果表明内幕交易降低了证券价格的有效性,监管的关键在于促使信息在市场参与者之间的均匀分布。
3
Stamp duty on stock transactions in the regulationof the stock market is one of the important tools.