Posts in Economic Theory and Acadmics
Wanted: A Theory of Inflation

The more I think about the current debate about inflation, the more I am inclined towards the following remarkable conclusion. We currently do not have a good framework to explain inflation, neither cyclically nor structurally. Perhaps more appropriately, the old consensus among economists and policymakers on what inflation is, how it arises, and what to do about it has been severely challenged, if not shattered entirely. In a post-pandemic world of a clear, and almost textbook, inflationary mismatch between demand and supply, this has created the odd situation in which everyone is talking about inflation, and more recently inflation expectations, concluding that it either doesn’t matter or that we don’t understand how inflation works in the first place. Nowhere is this clearer than in the debate about whether presently high inflation is transitory or not. The thrust of this discussion has as much to do with the main interlocutors convincing each other that high inflation doesn’t matter, as it is about agreeing on what, in fact, transitory means.

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Mere Mortals no Longer?

The evolution of mortality through the demographic transition is as close as we come to a deterministic process in the analysis of population dynamics. Science and technology have become increasingly better at keeping people alive, a benefit that still seems to drive the human experience to this day. It’s possible to identify milestones through history such as the development of modern sanitation to defeat contagious air- and waterborne illnesses, the development of vaccines for specific illnesses, as well as overall technological development in the field of healthcare. It is a story about pinning down the causality between rising national income and technological development and the improvement in the human living condition in the past 250 years. Researchers still debate the relative importance and merits of specific drivers, but it’s possible to generalize, all the same. The story about of human mortality is contained in a few relationships, for the individual, between, and possibly within countries. It is a story about Nike swoosh-shaped, logarithmic and asymptotic curves, and the extent to which we observe deviations from such stylized relationships over time, and why.

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The Real Macro Wars

I am still not entirely sure whether Noah Smith, a U.S. Economist and prolific blogger, is a converted MMTer or not. But I do know that he is doing a great job in describing the discourse around this newfound holy grail of macroeconomic policymaking. In my attempt to label MMT as “Woke Economics”, I leaned on some of Noah’s earlier pieces on this, and now he is back with his invocation of the new Macro Wars. The stage, according to Noah, is the recent fiscal relief bill in the US, prompting even otherwise pro-stimulus economists to push back. Oliver Blanchard and Lawrence Summers both suggest that $1.9T might be too much of a good thing, while Krugman is sticking to his Keynesian ethos, arguing that Biden’s bill really is ‘disaster relief’, a position that Noah seems to agree with. Replying specifically to Noah’s recent post, he argues that Keynesianism won the theoretical battle a decade ago, leaving only “cranks, charlatans and WSJ Op-ed writers” on the other side. Tyler Cowen chimes in, pointing out that Biden’s post-election fiscal stimulus push has as much to do with populism as it has to do with careful application of Keynesian macroeconomics. As it turns out, this is a position I have a lot of sympathy for.

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Will you get the shot?

This week, I’ll stitch together some thoughts on our ticket off the Covid-19 train, also known as the “vaccine”. I am prompted by Georges Pearkes’ challenge to come up with why it might be a bad idea to given people $1500, or another monetary amount, as an incentive to take the vaccine. First things first, it’s very possible that our main problem next year is that we won’t have enough of this thing. Paradoxically, the prospect of a vaccine dealing a killer blow to the virus in the middle of next year has created an incentive for authorities to maintain tighter restrictions in the short run—well into Q1, at least—while we wait for the shot. After all, if the virus is gone tomorrow, the cost of an infection today increases, a lot. A reasonable counterpoint is that governments aren’t masochists, and some form of reopening will happen in Q1, but the point I am getting is simple in the end. Assuming the vaccine is rolled out by early Spring, on the back of a miserably semi-locked down winter, it’s more likely than not that people will be scrambling for a jab, especially in an environment where the vaccine becomes a ticket to otherwise restricted activities via a form of passport. In such a situation, we won’t have to pay people to take the shot. We’ll have to make sure it isn’t hoarded. As for the counterpoint, I am not convinced that the rise of anti-vaxxers—known in the literature as "vaccine hesitancy”—can be applied to predict a threat to the effectiveness of Covid-19 vaccine efforts. That said, early survey evidence suggest that hesitancy might be an issue, especially at the margin where the line between failure and success is drawn.

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