Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
In an adverse selection model of a securities market with one informed trader and several liquidity traders, we study the implications of the assumption that the informed trader has more information on Monday than on other days. We examine the interday variations in volume, variance, and adverse selection costs, and find that on Monday the trading costs and the variance of price changes are highest, and the volume is lower than on Tuesday. These effects are stronger for firms with better public reporting and for firms with more discretionary liquidity trading. Article published by Oxford University Press on behalf of the Society for Financial Studies in its journal, The Review of Financial Studies.