How can we know if a stock-market is over or undervalued? In the Authers' Note below, Andrew Smithers explains the various ways in which we can assess whether a market is over or undervalued. He favours Tobin's Q and CAPE, both of which suggest that the market is 70% overvalued at the minute!
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.