Paolo Santucci de Magistris
Tuesday, November 27, 2018
Polo Santa Marta, Via Cantarane 24, Sala Vaona
We provide a unified model for foreign exchange (FX), trading volume, and volatility
in a multi-currency environment. Tied by arbitrage conditions, FX rates are determined
by common information and trader-specific components generating heterogeneous
reservation prices thus inducing trading. Our model outlines new properties including
volume-volatility relationships between direct and synthetic FX rates. It also provides
a theoretical foundation for commonalities of volume, volatility, and illiquidity across
currencies and time, and an intuitive closed-form solution for the price impact measure.
Using unique (intraday) data representative for the global FX spot market, the
empirical analysis validates our theoretical predictions.