Nonstandard-Settlement Transactions
研究交易结算周期偏离常规（如当日结算）的原因，帮助实证数据库用户判断是否应纳入这类交易。
While most trades settle in three business days, nonstandard-settlement trades often settle on the same business day. This article examines reasons behind nonstandard settlements and addresses situations that are useful to empirical database users in deciding whether or not to include these trades.