Crypto-Currencies Bubble

A surge in the value of crypto-currencies provokes alarm

IT IS hard to predict when bubbles will pop, in particular when they are nested within each other. It helps to keep this image in mind when considering one of the biggest surges in asset values of recent years: the market value of all the world’s crypto-currencies has trebled since the beginning of the year, and is now worth more than $60bn (see chart).

http://www.economist.com …  Fri.,  19  May 2017