First, Cuba uses two different currencies -- the national peso (CUP) and the convertible peso (CUC), a rough proxy for the U.S. dollar. Unlike the currencies of many countries, neither the CUP nor the CUC trades off the island.
What if we looked at violence in America as a public health crisis rather than a crime problem? What if we look for promising practices and expanded the ones that work to eliminate the epidemic of violence that keeps our graveyards, jails, and prisons full?
There are a number of distortions and problems with Venezuela's economy -- including recurrent shortages -- and some of them have to do with the management of the exchange rate system. But none of these problems present a systemic threat to the economy.