Bubbles, Unemployment and Fiscal Stimulus

Paul Krugman, is trying to fight for the usefulness of fiscal stimulus in mitigating unemployment.

Ryan Avent has some fairly harsh words for Arnold Kling’s recalculation theory of business cycles. Tyler Cowen, predictably, thinks Ryan is too snide.

But what none of the participants in the debate seem to realize is that Arnold is basically reinventing 1934 macroeconomics.

[...]

It’s all there: mass unemployment is necessary, because you have to shift resources away from sectors that got too big, stimulus is a bad thing because it slows the necessary adjustment. And now as then, the whole notion falls apart when you ask why, say, a housing boom — which requires shifting resources into housing — doesn’t produce the same kind of unemployment as a housing bust that shifts resources out of housing.

Both booms and busts involve shifting of resources between sectors. This much is self evident. It would be stupid to try to deny that. This doesn't mean that the unemployment should not be alleviated at all.

Krugman unfortunately makes a complete fool of himself in the last paragraph. Of course booms don't involve unemployment. In a boom, the driving force of inter-sectoral adjustment is a surge in demand. In a bust, the cause is a collapse of demand.

In a boom, the workforce moves behind the pull of opportunity. This was clearly visible in the flow of newly minted real estate brokers who were encouraged to leave their prior jobs in search of bubble-induced income. In a bust, the realignment is caused by a push-type phenomenon. (Or is it a kick?)

This is such an elementary thing that I can only wonder what Mr. Krugman has been smoking while writing that last paragraph.

To clarify, my own view is that increasing unemployment can hardly be completely avoided in a major bust of a bubble, but that government projects can (and should) be brought forward to mitigate it, if only to make use of the suddenly cheap labor and raw materials. Busts clearly have effects on people who were not directly involved in the bubble and an uncontrolled collapse is bad for everybody.

Equally, I believe that fiscal measures might even be appropriate in controlling the growth of a bubble. Additional small taxes on house-flippers (say for houses bought and sold within 12 months) could have helped slow down the development of the housing bubble. Additionally, it could have provided a larger cushion for the inevitable fiscal collapse.

In both ends of the boom-bust cycle, monetary policy should be the primary means ahead of fiscal measures. In this sense, the QE policies should go even further, as there is a lot of credit that is (and should be) paid down.

This collapsing credit can be replaced with base money even if the money multiplier has collapsed to unity. Instead of "mopping up the liquiduidity", central banks should bring back meaningful cash reserve requirements (to all bank-like entities) after the economy has recovered from the excess of credit. This would naturally will be fought against tooth and nail by the financial sector.

Hoarding - Coin "Shortage" in Buenos Aires

An amazing story about the dynamics of hoarding coins in Argentina is presented by Joe Keohane in The Slate: (hat tip to Paul Kedrosky)

Welcome to the world's strangest economic crisis. Argentina in general—and Buenos Aires in particular—is presently in the grip of a moneda, or coin, shortage. Everywhere you look, there are signs reading, "NO HAY MONEDAS." As a result, vendors here are more likely to decline to sell you something than to cough up any of their increasingly precious coins in change. I've tried to buy a 2-peso candy bar with a 5-peso note only to be refused, suggesting that the 2-peso sale is worth less to the vendor than the 1-peso coin he would be forced to give me in change. When my wife went to buy a 10-trip subway pass, which retails for 9 pesos, she offered a 20-peso note and received 12 pesos in bills as change. This is commonplace—a daily, if not hourly, occurrence. It's taken for granted that the peso coin is more valuable than the 2-peso note.

No one can say what's causing this absurd situation. The government accuses Argentines of hoarding coins, which is true, at least to some extent. When even the most insignificant purchase requires the same order of planning and precision as a long-range missile strike, you can hardly blame people for keeping a jar of monedas safe at home. The people, in turn, fault the government for not minting enough coins. In fact, the nation's central bank has produced a record number of monedas this year, and the problem has gotten even worse. (Read more)

When everybody does something in anticipation of others doing the same, things can sometimes escalate out of hands in a completely uncontrolled way. If everybody would stop the adverse behaviour all at once, things would rapidly come back to normal. But how could such a coordinated action be achieved?

Hoarding is a phenomenon that is going to be a hot topic in the coming decades of resource scarcity. It is a good research subject for economists, sociologists and anthropologists. Too bad I'm an engineer myself.