Bitcoin has been labelled a speculative bubble by many including former Fed Chairman Alan Greenspan and economist John Quiggin. Nobel Memorial Prize laureate Robert Shiller said that bitcoin "exhibited many of the characteristics of a speculative bubble". On 14 March 2014, the American business magnate Warren Buffett said, "Stay away from it. It's a mirage, basically." Two lead software ... Between January 1 and December 17, 2017, the value of a single Bitcoin skyrocketed from under $1,000 to nearly $20,000. To match Bitcoin’s 1183 percent return during this period, an investor would have needed the equivalent of 38 years’ average equity market returns. Investors and news outlets alike were entranced by Bitcoin’s stratospheric rise, and direct investment in the crypto-asset ... It’s been quite a big week in cryptocurrency markets. The price of Bitcoin has fallen close to... Bitcoin is currently attracting a lot of this excess money that has no useful outlet. After the bitcoin bubble succeeds at destroying a lot of phony wealth when it bursts, some new fantasy investment will take its place. The only aspect of this worth worrying about is whether the destruction of however much wealth is tied up in the thing poses any risk to the economy of goods and services, as ... I’m giving a talk tomorrow at a Colloquium organized by a group called Sort, on The Wasteful Economics in Resource Recovery, and I’ve been asked to talk a bit about blockchain technology. That reminded me that I needed to take another look at the issue, and what has changed since 2015 when I wrote that at most of the market value of a Bitcoin reflects the electricity wasted in the ...
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