WSJ July 14 Review: US Slaps 30% Tariffs on EU & Mexico, Musk Bets $2B on AI Empire

 Economists raise Q4 growth forecast to 1% as unemployment drops to 4.1%; US to impose 30% tariffs on EU and Mexico from Aug 1, affecting $1.8T bilateral trade; SpaceX invests $2B in xAI, valuation soars to $113B; Used EV sales hit 100K milestone with 32% price crash; Private equity "continuation funds" reach record 13% of exits; Gen Z embraces "super fakes," cutting luxury spending by $5B.