A central bank can always prevent government default

I have received a lot of E-mails over the weekend about a paper released by the CEPR Policy Portal VOX (June 20, 2015) – Can central banks avoid sovereign debt crises? – which purports to provide “new evidence” to support the conclusion that “the ability of the central bank to avert a debt self-fulfilling debt crisis is limited”. It is another one of those mainstream attempts to brush away reality and draw logical conclusions from a flawed analytical framework. When one digs a bit the conclusion withers on the vine of a stylised economic model that leaves out significant features of the monetary system – such as for starters, a currency-issuing government can never go broke in terms of the liabilities its issues in its own currency. All the smoke and mirrors of stylised New Keynesian mathematical models cannot render that reality false.In other words, the paper and the lineage of papers it draws upon should be disregarded by anyone who desires to understand how the monetary system operates and the capacity and opportunities that the currency-issuing government (including its central bank) has within that system.

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