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Rethinking Macroeconomics

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I recently attended a conference at the Peterson Institute on "Rethinking Macroeconomics", which mostly meant returning macro to its Keynesian roots. Readers may know that I have a contrarian take on the crisis---I believe it occurred because macroeconomists did not take macro theory seriously enough. We do not need to rethink macro by adding in fiscal policy or paying more attention to the financial sector, rather we need to impress upon the world's central banks the importance of doing whatever it takes to keep aggregate demand growing at an adequate level. The major central banks (except in Australia) did not do that in 2008 (for many different reasons) and hence we had the Great Recession. I don't

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I recently attended a conference at the Peterson Institute on "Rethinking Macroeconomics", which mostly meant returning macro to its Keynesian roots. Readers may know that I have a contrarian take on the crisis---I believe it occurred because macroeconomists did not take macro theory seriously enough. We do not need to rethink macro by adding in fiscal policy or paying more attention to the financial sector, rather we need to impress upon the world's central banks the importance of doing whatever it takes to keep aggregate demand growing at an adequate level. The major central banks (except in Australia) did not do that in 2008 (for many different reasons) and hence we had the Great Recession.

Rethinking Macroeconomics
I don't get invited to many left-of-center conferences, for some reason I'm more likely to get invitations from groups like Cato, AEI, Heritage, etc. Thus I thought it might be interesting to provide a few impressions:

1. At an intellectual level the conference was very impressive---there were many brilliant economists presenting and also in the audience. The overall impression was of a center-left perspective, but hardly monolithic. After Alan Auerbach presented a paper on fiscal policy, several panel members (including Robert Rubin) expressed skepticism---viewing the problems we face as mostly supply-side.

2. I sometimes had a sort of "Paul Krugman reaction", as the general discussion seemed more grounded in reality than at a right-of-center macro conference. Most speakers seemed very aware of the importance of shortfalls in AD during the Great Recession, a basic understanding that I often feel is missing on the right.

3. On the negative side, I was extremely disappointed by some of the comments on monetary policy. In response to calls for a higher inflation target to avoid the zero bound problem, Jeremy Stein of Harvard University asked something to the effect "What makes you think the Fed can achieve higher inflation?" (Recall that Stein was recently a member of the Federal Reserve Board.) I was pleased to see Olivier Blanchard respond that there is no doubt that we can achieve 4% inflation, or indeed any trend inflation rate we want. But then Larry Summers also suggested that he shared Stein's doubts (albeit to a lesser extent.)

I kept thinking to myself: Why do you guys think the Fed is currently engaged in steadily raising the fed funds target? What do you think the Fed is trying to achieve? How can a top Fed official not think the Fed could raise its inflation target during a period when we aren't even at the zero bound? Why has the US averaged 2% inflation since 1990---is it just a miracle? When Summers came out for NGDP targeting I briefly wondered whether I'd made a mistake in favoring Yellen for Fed chair, but this comment reconfirmed my initial preference.

4. While the left is ahead of the right in their understanding of the importance of demand shocks, they lag far behind in understanding the importance of more subtle forces shaping the economy. Thus they are even less likely than the right to blame the Fed for destabilizing aggregate demand, and they almost entirely ignored the problem of moral hazard in a panel on the financial system. On the left there's a reflex to always seek solutions in more government (financial regulation, fiscal policy, etc.), not in removing government policies that cause problems (moral hazard, unstable monetary policy.) Unfortunately the solutions offered by the left do not address the root causes of economic crises, and hence are likely to be ineffective. Banks will eventually find their way around any regulations enacted to limit their risk taking. Fiscal policy has been repeatedly shown to be largely ineffective. (Remember the 2013 recession trigger by "austerity"? Me neither.)

5. Larry Summers dominated the conference due to a combination of his force of personality and his intellectual brilliance. (That's right, I don't judge intellects based on whether they agree with me.) At one point he was asked what he'd do if put in charge of the Fed. Although Summers had expressed support for a higher inflation target, he was surprisingly cautious in response to this question. He pointed out that it was the job of intellectuals in academia to throw out provocative ideas worth considering, and the job of top policymakers to enact policies based on well-established economic principles. He indicated that he wasn't sure whether it would make sense to use a lot of political capital trying to move the entire Federal Reserve System over to his preferred policy. (This is based on my memory, and may not be precisely correct.)

Summers' comment made me think back to lots of debates I'd had in various comment sections, where I defended Bernanke for trying to nudge the Fed in the right direction. Summers' remarks make me even more confident that I was correct, as if even an "alpha male" like Summers thinks he'd have trouble moving the Fed to his preferred policy regime, imagine the challenge facing a more mild-mannered, consensus-seeking personality like Bernanke (or me!). Summers has worked in the Treasury, and knows how difficult it is to enact policy changes in the real world.

6. When I proposed negative interest on reserves back in January 2009, the idea was widely ridiculed in my comment section. I recall reporters from the Financial Times suggesting that the policy would actually be contractionary. (They looked at monetary policy from the false "finance perspective", not the true "monetarist perspective".
Indeed the success of negative IOR helps to confirm the truth of monetarism). On one panel Mario Draghi indicated that negative IOR had indeed been effective, had failed to produce market distortions such as disruption to MMMFs, and had also failed to reduce bank profitability. (Note that an expanding economy is good for banks.) I was very pleased to see that my proposal had worked out so well.

7. Greg Ip from the WSJ asked a really interesting question. He pointed out that many of the factors cited by Larry Summers in his "secular stagnation" hypothesis also might serve to make recessions much less likely in the future. Previous recessions often occurred either when there had been an inflation overshoot (i.e. 1970 or 1981), or (perhaps) when investment has become excessive (think tech in 2000 or housing in 2006.) But under secular stagnation there are no inflation overshoots, and we also don't see high levels of investment. (Don't be fooled by recently recovering home prices; actual construction of homes remains severely depressed relative to the long run average.) I'm already on record predicting that this will end up being the longest expansion in US history, and Ip's question made me even more confident in that prediction.

Some people responded by pointing to past "this time is different" predictions (i.e. 1929, 1966, 2006), which ended up being overly optimistic. But I don't think that sort of cynicism is an adequate response to Ip, especially in a world where Australia has not had a recession in 26 years.

PS. Even though Adam Posen's views are far to the left of mine, I'd like to thank him for inviting me and for hosting an extremely high quality conference. This site has links to videos of the various panels, so you can check the accuracy of my memory.



Scott Sumner

Scott B. Sumner is Research Fellow at the Independent Institute, the Director of the Program on Monetary Policy at the Mercatus Center at George Mason University and an economist who teaches at Bentley University in Waltham, Massachusetts. His economics blog, The Money Illusion, popularized the idea of nominal GDP targeting, which says that the Fed should target nominal GDP—i.e., real GDP growth plus the rate of inflation—to better “induce the correct level of business investment”. In May 2012, Chicago Fed President Charles L. Evans became the first sitting member of the Federal Open Market Committee (FOMC) to endorse the idea.

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