This paper reviews the more recent literature addressing different facets of speculation in commodity markets, including the role of speculators and the impact that financialization in recent years. While speculation and financialization can theoretically destabilize commodity markets, the...

This paper investigates the dynamic relation between market-wide trading activity and returns in 46 markets. Many stock markets exhibit a strong positive relation between turnover and past returns. These findings stand up in the face of various controls for volatility, alternative definitions...