The Langlands programme has inspired and befuddled mathematicians for more than 50 years. A major advance has now opened up ...

Correlation coefficients can mean a positive, negative, or no relationship between two variables. Use correlation coefficients to help pick securities for your portfolio.

We study optimal bank capital choice as a dynamic trade‐off between the opportunity cost of equity, the loss of franchise value following a regulatory minimum capital violation, and the cost of ...