In portfolio risk minimization, the inverse covariance matrix prescribes the hedge trades in which a stock is hedged by all the other stocks in the portfolio. In practice with finite samples, however, multicollinearity makes the hedge trades too unstable and unreliable. By shrinking trade sizes...

Conducting a Beveridge-Nelson decomposition on exchange rates reveals that the prospective interest rate differential -- the expected infinite sum of future interest rate differentials (i.e., the "prospective'') -- can help predict foreign exchange market excess returns. We find that the...

This article examines China’s use of its general anti-avoidance rule, particularly in cases involving indirect equity transfers, and its commitment to the international exchange of information, looking at how the mechanisms can work together to help balance the dual goals of enforcing tax...

Estimation of the covariance matrix of asset returns is crucial to portfolio construction. As suggested by economic theories, the correlation structure among assets differs between emerging markets and developed countries. It is therefore imperative to make rigorous statistical inference on...