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...

I study the interactions between the distribution of human capital, technological choice, and redistributive institutions. I first ask what makes alternative social contracts such as a European-style "welfare state" and US-style "laissez-faire" sustainable, and in particular how each is affected...