Monday, October 27, 2008

"But when it corrected, it corrected fast. No doubt too fast for Japan’s comfort."

Brad Setser on the rise of the yen, where the operative word is rise, as in quick:

"Back when it was fashionable to talk about the end of macroeconomic volatility, it was also common to note that volatility had disappeared from the currency market. The FT’s resident financial anthropologist Gillian Tett :


"A couple of years ago – or before banks started to go bust – economists sometimes liked to talk about a phenomenon they christened The Great Moderation. This was the idea that the 21st-century financial system and global economy had become so stable and sophisticated that dramatic swings in activity had seemingly disappeared. Volatility, in other words, was supposed to be an issue of the past.

The absence of volatility — in turn — made carry trades (borrowing in a currency with a low yield to buy a currency with a higher yields) attractive. Carry trades pay off if not much changes.

Alas, the return of macroeconomic volatility (Jeff Sachs’ back of the envelope calculations suggest that the pace of global GDP growth could fall sharply next year) has also led the return of currency market volatility"

This is pretty clear, I hope, in my fudging example world. If you have interest rates a 5% in one place, and 2% at another place, if the exchange rate stays the same, and you can bring your extra interest back into your own currency at that same exchange rate, you can invest your money in the other currency and get a higher rate of interest. Of course, if the exchange rate changes, all bets are off. You might or might not make out.

I guess a lot of people aren't making out,

One factor is that people are moving their money into Japan and the U.S. during this crisis. This interests me, and I want to know why. I mean really know. It's a reaction to this crisis, but why?

In any case, this exchange rate effects the price of imports and exports, and thus effects how much goods cost in different countries, and the balance of trade between them.

You need to read Setser to see what's actually going on. I highly recommend it.

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