AppliedMultiple choice
You need to classify trades as buyer- or seller-initiated from trades and quotes. What is the standard first rule?
- ATrades on even-numbered seconds are buys and the rest are sells
- BAbove the prevailing mid is a buy; below is a sell
- CLarge trades are buys and small trades are sells
- DEvery trade at the bid is a buy, since someone bought there
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Market-data cases: short-horizon prediction from the order book
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