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Quantitative Finance · Glosario

¿Qué es Adverse-selection component?

Definition 5.3 Microstructure and Execution · Capítulo 5 — Decomposing the Spread

The adverse-selection component of the effective spread is the part that compensates liquidity providers for trading with counterparties who know more: for a trade at tt, the expected value of εt(Pt∗−mt)\varepsilon_t(P^\ast_t-m_t), where Pt∗P^\ast_t is the efficient price, the expectation of the asset’s value given all information, including what the aggressor knows and the quotes do not yet show.

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