Specialists in international finance have long been impressed by the fragility of currency pegs. Yet Danmarks Nationalbank has been able to maintain the krone's peg to the euro since the euro came into existence in 1999, and the krone's peg to the Deutschmark and SDR for 17 years before that....

What can explain the long-term decline in equilibrium real interest rates? We analyze the importance of three of the most cited drivers; decreasing fertility, decreasing mortality, and a slowdown of technological growth. We do this through the lens of a general-equilibrium, two-country,...