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...

This paper compares transitional dynamics in two alternative R&D non-scale growth models; one includes endogenous human capital, whereas the other does not. We show that focusing on the speed of convergence to discriminate between the two models can be misleading. Our analysis suggests that a...