Over millennia, mankind has used hard cash in various forms ranging from shells to gold coins and paper. More recently, cash has become unpopular in political circles, as it effectively restricts states’ power to tax (explicitly or via negative interest rates) or to survey and potentially...

We analyze how financial crises affect international financial integration, exploiting euro area proprietary interbank data, crisis and monetary policy shocks, and variation in loan terms to the same borrower on the same day by domestic versus foreign lenders. Crisis shocks reduce the supply of...