Don’t celebrate too soon. That was the key message as policy makers and investors left Washington on Sunday after attending the annual meetings of the International Monetary Fund and World Bank. For once the mood was upbeat. The IMF bumped up its forecast for global economic growth this year and next. Stocks are surging, credit spreads are tight and market ...

Just like in the summer of 2014, fighting in northern Iraq is sending ripples through the oil market. A lot has changed in the meantime. Back then, IS was sweeping all before it; now, the wannabe caliphate’s collapse is allowing old tensions between Baghdad and the region’s Kurds to resurface. A lot has changed in the oil market, too. Brent ...

President Donald Trump’s decertification of the Iranian nuclear deal is a mistake. Yes, its supporters have exaggerated the agreement’s benefits — but on balance, the world is better off with it than without it. In the near term, the decertification doesn’t really change much. The deal will remain in effect while Congress considers re-imposing sanctions on Iran, in effect killing ...