Growing fiscal concerns in some of the world’s biggest economies are adding momentum to a so-called “debasement trade,” as investors flock to the perceived safety of Bitcoin, gold and silver while pulling away from major currencies. The yen tumbled on Monday as pro-stimulus lawmaker Sanae Takaichi was set to become Japan’s next prime minister. French bond spreads blew out and the euro slid after the prime minister resigned, hurling the country into another political crisis. The dollar, which has weakene ...