The Arbitrage Pricing Theory (APT) of Ross (1976, 1977), and extensions of that theory, constitute an important branch of asset pricing theory and one of the primary alternatives to the Capital Asset Pricing Model (CAPM). In this chapter we survey the theoretical underpinnings, econometric...

Motivated by the literature on investment flows and optimal trading, we examine intraday predictability in the cross-section of stock returns. We find a striking pattern of return continuation at half-hour intervals that are exact multiples of a trading day, and this effect lasts for at least 40...

Abstract We propose new methodology to construct arbitrage portfolios by utilizing information contained in firm characteristics for both abnormal returns and betas (and, therefore, smart-beta risk premiums). Our methodology gives maximal weight to risk-based interpretations of characteristics'...