Category Archives: Economics

False Security from PPP Recalculation

Rand’s analysis of the restatement of the purchasing power parity (PPP) calculation for China is incomplete. As I’ve pointed out before, the revised 2006 PPP calculation with the economy measured at PPP nearly three times instead of four times as large as at official exchange rates still leaves China with a $2.5 trillion dollar economy (2006) at official exchange rates and $6 trillion if you consider most of what we and the Chinese buy is cheaper in dollars to buy in China than it is in the US. The relevant numbers for long term strategic security are the industrial production growth rate (from the CIA World Factbook on Intelligence) at 22%/year, the labor force of 800 million of which 45% do agriculture (2005) versus less than 1% for the US and the 11%/year real growth rate.

This indicates that China has a lot of head room as its agricultural sector mechanizes and rationalizes farm size. It has a lot of head room because per capita GDP is either $1,900/year at official exchange rates or $4,500/year at PPP. At 8% faster GDP growth than the US, it will catch us in 10 years in PPP or by 2030 at the official exchange rate. At that point it will still have substantial headroom to grow for another decade much faster than the US because per capita GDP at that point will only be 1/4 the US per capita GDP.

Like finding out that Iran doesn’t want a bomb, this new statistic is a red herring. China is still on the rise. It’s vainglory to hope they just topple themselves like Russia. Just because Iran doesn’t want a bomb (if it doesn’t) it still has a nuclear program and could have one if it wanted in a quite short period of time. Just because we recalculated the statistics to show that China has a smaller economy, it is still growing fast and with the revised calculations rates likely to grow even faster.

I am sure that single-party government will be a drag on China, but they can still field a super power’s worth of hardware once they exceed our GDP. It may take them a while once they are spending as much as the US is on defense to catch up to our technology level, but a tech advantage is not always decisive. Especially if they start outspending us 2 to 1 a decade later while their per-capita GDP is still half of ours.

Peak Oil?

I don’t really believe in “peak oil,” though I’ll buy the concept of peak cheap oil. But Randall Parker does, and thinks we’re there, and is worried about the transition. Lot of good discussion in comments.

In my opinion, it will only be a problem if the government mucks with the market too much. Unfortunately, at least based on their behavior in the seventies, that’s not an unlikely possibility.

How Does That Work?

Tom Friedman thinks that if Obama gets the nomination, he should keep Dick Cheney as the VP. Well, not really, but I do agree with him that the administration’s policy toward Iran does seem confused and confusing. It’s kind of like “indecisive cop/bad cop.”

But what I really wanted to comment on was this strange sentence:

Mr. Obama would also be more effective if he not only stressed how much further he was ready to go than the Bush team to engage Iran, but also how much further he would be ready to go in bringing meaningful leverage on Iran

A True Shortage

I’ve always found it a little surprising how unthinkingly we use helium, when it really is in short supply on the planet. Party balloons are fun, but at some point I do expect the price to rise to the point at which it will only have industrial uses (including for space activities). It could certainly liven up parties if we switch over to hydrogen balloons…

There’s plenty of helium to be mined out in the solar system, but it would be an interesting challenge to import it back down into the gravity well. I suppose it would just be done in pressurized tanks.

Bad Economic News

…for those looking for bad economic news. Productivity is surging:

The Labor Department reported that productivity — the amount of output per hour of work — jumped at an annual rate of 4.9 percent in the July-September quarter. That was double the 2.2 percent rise in the second quarter and represented the fastest surge in worker efficiency since 2003.

At the same time, wage pressures eased with unit labor costs dropping at an annual rate of 0.2 percent, the best showing in more than a year.

I blame George Bush.

More on Specialization

Rand observed that “one of [his] biggest mistakes in life was not recognizing early that the most effective way to achieve my goals would have been to get wealthy first, then to apply that wealth toward them”. The basic economics point is that if you earn as much money as possible by specializing in what the economy will pay you the most for, you can often hire a specialist to do far more good with the money you made than you could have doing the good personally.

Another way to state this is doing nice things is fun; nice is an economic good. So if you want a pleasant job, other people who like pleasant jobs will compete and drive the price down until the low pay makes it unpleasant enough to clear the market.

This makes Bill Gates’s career change to spend his fortune a global tragedy worse than the monetary damage of Hurricane Katrina. He is likely to be much closer to average in his ability to make the world better by giving, compared to making the world better by making better software and operating systems.

The salary offered to you for different occupations summarizes what the economy values most from you. Accountants and lawyers may seem less useful than teachers and engineers, but that is a fallacy of confusing the average value of a teacher–which may be very high–to the market price of a teacher which will be much lower if there are lots of people who want to be teachers.