Should you trust economists? For many people nowadays, the answer is “no.” Economists failed to predict the Great Recession. Their prescriptions — quantitative easing, for example — didn’t seem to help speed the recovery much. During the past three decades, a lot of their big policy ideas — financial deregulation, tax cuts, privatization and the free movement of capital …

  Even Inditex SA can’t defy gravity forever. The Spanish owner of the Zara fashion chain is still delivering the sort of sales growth rivals can only dream about. Same-store sales rose 10 percent in the year through January, the fastest rate in 14 years. By contrast, many competitors are struggling to generate growth on the same basis. But the …

  China is nothing if not creative in protecting its local industries. Although it has liberalized its economy in recent years, it has also erected a sophisticated set of barriers to safeguard companies it views as national champions. Increasingly, this is a counterproductive approach. The usual method of assessing protectionism is to look at metrics such as tariff rates. And …