红利税率的多元化是引致投资者对股票估价差异性的原因之一，并且催生了现金股利除息前后的套利机会和增量交易。
The variety of dividend tax rate is one of the reasons that cause the variety of stock pricing; it also induces the arbitrage opportunities and additional trading around ex-date.
选取上证综合指数收益率的增量作为反应事件，检验收益率是否会对证券公司在对下一个交易日的指数预测产生影响，从而分析我国机构投资者是否存在启发式偏差。
The yields of the indices of Shanghai Stock Exchange are chosen as the subjects for testing whether or not it will influence Chinese investors' prediction on next trading day's Index.
文中采用针对交易功率总量计算的增量法确定交易在线路中的潮流份额，适用于日前市场的阻塞费用结算。
Aggregated allocation approach is adopted to determine the power flow in the congested line caused by each transaction, which makes the proposed method suitable for accouting in day-ahead market.
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