デジタル通貨について - himaginary’s diaryというNBER論文が上がっている（H/T Mostly Economics；ungated版）。原題は「On Digital Currencies」で、著者はHarald Uhlig（シカゴ大）。 以下はその要旨。 I discuss private and central-bank-issued digital currencies, summarizing my prior research. I argue that prices of private digital currencies such as bitcoin follow random walks or, more generally, risk-adjusted martingales. For central bank digital currencies, I argue that they enhance the
