Knowing and Making

This quite clever proposal from Cavallo and Cottani sounds plausible at first but my immediate reaction is: how can it work? The idea is to eliminate payroll taxes in Greece and instead raise VAT to 25%. This is meant to increase competitiveness while reducing distortions in the economy. It feels like a magic solution - which naturally makes me suspicious. If the economy really needs a devaluation, then how can they miraculously solve the problems without one? But then I realise that magic really can happen . A devaluation is only a nominal change - it simply breaks people's money illusion and affects relative prices. In fact, a devaluation requires no real actions at all, although it does change the pattern of of future real demand. All the benefits of a devaluation can, in principle, be achieved through the coordinated individual choices of all the agents in the economy. Of course such coordinated choices are highly implausible, which is why devaluation is a good short...

Interesting but depressing Paul Krugman interview Interesting but depressing Economist cover story I was going to write about bubbles, but an almost throwaway point from the Krugman interview led me into thinking about devaluations instead. He suggests that Spain might need to (as Estonia has already done) reduce wages and prices across its economy to regain competitiveness, because they can't take the shortcut of devaluing their currency. And this, as he points out, is going to be difficult. Devaluations were a concept that used to fascinate me as a teenager (OK, maybe I was an odd teenager - but in my defence this was before I had a girlfriend). The topic hasn't been as prominent recently, except in the debate on the Chinese-US exchange rate. But Krugman's comment started me wondering just why it should be so hard to achieve a cut in prices these days. After all, wages and prices are just nominal values; yes, there are costs to changing them but they're not tha...