Roger Backhouse has an interesting piece in the NY Times on how the economics profession has ignored "capitalism" for too long - it no longer even discusses economic systems. According to Keynes "economists should become more like dentists: modest people who look at a small part of the body but remove a lot of pain". However, Backhouse argues that we need more general practitioners! Click here to read more.
According to Robert Shiller , speaking at Davos, Bitcoin is a perfect example of a bubble - story here . Shiller sees Bitcoin as a backwards step in the evolution of money. George Selgin , a free banker, takes an opposing view - click here . Although he doesn't believe that Bitcoin is money, he sees its development as a fascinating turn in the evolution of money. In particular, he lauds the fact that Bitcoin production is constrained and cannot be infinite. There is a short video below where Bitcoin explain how it works.