The Secular Stagnation Hypothesis accounts well for the mistakes made in the eurozone in the aftermath of the global recession, when sovereigns attempted to deleverage while companies and households were unwilling to spend, and the ECB was keeping monetary policy relatively tight. The BIS’s explanation reads like a summary of the woes of China, where growth has slowed from 10% to 7% or less, but the authorities still push investment amounting to almost half of GDP and promote all sorts of low-return projects.