The iPod International Currency Index

Snad writes "The BBC is reporting that an Australian bank has adopted the price of Apple's iPod as a means of tracking international currency values. Similar to The Economist's Big Mac index, this 'iPod index' tracks the price of a 2-GB iPod Nano around the globe and uses purchasing power parity to determine relative currency value. A sample quote: '"The index suggests that the US dollar has potential to appreciate against a range of major currencies, with the Australian dollar about 15% overvalued against the greenback," said Craig James, Commonwealth Securities' head economist.' The cheapest place to buy an iPod is Canada — $144 (but Hong Kong and Japan are almost as cheap); the most expensive is Brazil — $327."

Comments

The iPod is useless as a scale

[ElGanzoLoco]

This is not very useful: the market value and intended targets of the iPod change from country to country.

You can safely assume the shiny gadget is a consumer good in the US, most of Europe, Japan, and other similarly rich countries. But in much of the developing world, it is a luxury item that local distributor(s) can afford to overprice (compared to its value in other markets) because they are only going after the 0,1 percent of wealthy people that can afford the item regardless if it costs 250 or 450USD. For this to make any sense, of course, you need to keep in mind that in many developing countries, there is no such thing as a large middle-class.

The Economist's Big Mac index is flawed for another, similar reason: going to Mc Donald's is considered cheap and unfashionable in Paris, France, while it the most hype thing to do in Cairo, Egypt, or Guangzhou, China. So despite the fact that you are talking about the exact same BigMac & fries, you are not considering the same product, because its perceived value changes considerably from place to place. I think I remember reading an Economist article that aknowledged this.

Not That Simple

[jonadab]

You really can't calculate a meaninful exchange rate based on the price of a single product, unless the economies of the two nations are inherently similar. Yes, MKs in Africa figure exchange rates based on the price of Coca-Cola, but that's between countries with more-or-less the same economy, and it's inherently an informal calculation anyhow. You can't meaninfully compare the currencies of the US and Australia that way, much less the US and Brasil.

The problem is that different kinds of goods and services are more or less expensive in different economies. You can get VERY different ideas about the exchange rate, depending on which product you look at. In one country, technology is cheap but labor is expensive. In another, technology is unaffordable but labor is cheap. In another, both technology and labor are expensive but food is cheap. If you compare currencies based on one product, you can get yourself quite seriously confused.

Exchange rates are also driven by trade balances, and just because one US dollar can be exchanged for eight billion Ubledubgongian Frankls does not mean that a product worth one dollar in the US will cost F8 billion in Ubledubgong. It may only cost 250 Frankls. Going the other direction, just because exchanging one US dollar only gets you 50p in England does not necessarily mean that 50p has the same purchasing power as $1 would have in the US. People who don't understand economics tend to assume it works that way, but it doesn't.

Re:*Yawn*, Slow newsday?

[shplorb]

Did you know that ipods only support 2 video formats (both of them MAC formats)

Last time I checked, the formats were MPEG4 and MPEG4-AVC/H.264 - hardly "MAC-only" formats!