Cash-futures basis, a proxy for arbitrage opportunities, is examined, and the impact of informed trading and the changing roles of speculators and arbitrageurs are analyzed in both the non-expiration and near-expiration periods. While we observe that market frictions account to some extent for...

The aim of the research is to determine how the lifting of price restrictions on short sales and security-lending sales affects market efficiency, liquidity and arbitrage opportunities. The study examines trading behaviors of large and small traders separated by their transaction costs and shows...