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Sunday, February 01, 2015

'Saying the Obvious' (about Fiscal Policy)

Simon Wren-Lewis:

Saying the obvious: Give any student who has just done a year of economics some national accounts data for the US, UK and Eurozone, and ask them why the recovery from the Great Recession has been so slow, and they will almost certainly tell you it is because of fiscal austerity. And they would be right, as I set out in this recent VoxEU piece. There I present some back of the envelope calculations, but they are confirmed by model simulations: not just those I quoted in the text, but also others that I did not have space to mention.
When writing that piece, I kept having doubts. Not about the analysis, but just that this was all so obvious. It uses basic models (DSGE or more eclectic) that we teach undergraduates and postgraduates. It is supported by the clear majority of empirical evidence. I felt like I was telling people the macroeconomic equivalent of a rise in the demand for apples will mean an increase in their price.

The reason I put those doubts aside are also familiar. The fact that at least half the world’s politicians and mediamacro continue to ignore the obvious. ...

Economics is always in danger of being corrupted by politics and ideology, and macroeconomics seems particularly vulnerable in this respect. ... Some say that this corruption is inevitable and that we should embrace it, rather than attempt to avoid it through delegation to institutions like independent central banks. I disagree: demand management is basically a technical issue with political implications. If we did not have independent central banks today, I suspect we would be seeing the US congress voting to raise interest rates. And of course there would be a few economists with their models saying it was a good idea, even though the vast majority thought otherwise. ...

We therefore need to rethink how stabilisation policy is done at the Zero Lower Bound (ZLB)..., so it would be prudent to complete the delegation of macroeconomic stabilisation policy that was begun by making the operation of interest rate policy independent of political control. Doing that would also be a good opportunity to revisit the arrangements that can ensure independence is compatible with accountability and some degree of democratic oversight.   

    Posted by on Sunday, February 1, 2015 at 08:43 AM in Economics, Fiscal Policy | Permalink  Comments (93)


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