Some forecasters recently have predicted that OPEC countries with continuing current account surpluses will shift from long-term to short-term investments in the near future to improve their liquidity positions. However, careful study of a variety of data, including historical patterns, suggests...

The Organization of the Petroleum-Exporting Countries (OPEC) faces a perfect storm. It is squeezed between the revolution in unconventionals, which has increased the global supply of hydrocarbons and lowered their price, and the prospect of a global peak in oil demand, stemming from climate...