Markets Magazine

The Sub-Zero Club: Getting Used to the Upside-Down World Economy

In the new reality of negative rates, borrowers get paid and savers get penalized

Japanese families seem to have a sudden affinity for home safes. According to the Tokyo-based manufacturer Eiko, shipments have doubled since last fall. And in Germany, insurer Munich Re has stashed some 10 million euros ($11.4 million) worth of its own cash into vaults.

Why the squirreling? One possible reason is the creeping imposition of negative interest rates across the world, which could make it more rewarding to bypass banks—and a safe or vault is, well, more secure than a mattress.