Monday, June 18, 2007

A Brief History of Economic Time

University of Rochester Economics professor Steven Landsburg wrote a nice opinion piece in the 6/9-10 Wall Street Journal, titled "A Brief History of Economic Time". He begins with the following rapid history review:
Modern humans first emerged about 100,000 years ago. For the next 99,800 years or so, nothing happened. Well, not quite nothing. There were wars, political intrigue, the invention of agriculture -- but none of that stuff had much effect on the quality of people's lives. Almost everyone lived on the modern equivalent of $400 to $600 a year, just above the subsistence level. True, there were always tiny aristocracies who lived far better, but numerically they were quite insignificant.

Then -- just a couple of hundred years ago, maybe 10 generations -- people started getting richer. And richer and richer still. Per capita income, at least in the West, began to grow at the unprecedented rate of about three quarters of a percent per year. A couple of decades later, the same thing was happening around the world.

Then it got even better. By the 20th century, per capita real incomes, that is, incomes adjusted for inflation, were growing at 1.5% per year, on average, and for the past half century they've been growing at about 2.3%. If you're earning a modest middle-class income of $50,000 a year, and if you expect your children, 25 years from now, to occupy that same modest rung on the economic ladder, then with a 2.3% growth rate, they'll be earning the inflation-adjusted equivalent of $89,000 a year. Their children, another 25 years down the line, will earn $158,000 a year.

Against a backdrop like that, the temporary ups and downs of the business cycle seem fantastically minor. In the 1930s, we had a Great Depression, when income levels fell back to where they had been 20 years earlier. For a few years, people had to live the way their parents had always lived, and they found it almost intolerable. The underlying expectation -- that the present is supposed to be better than the past -- is a new phenomenon in history. No 18th-century politician would have asked "Are you better off than you were four years ago?" because it never would have occurred to anyone that they ought to be better off than they were four years ago.

That is a good point, and one I hadn't thought of! Landsburg's history review then goes beyond income alone:
One hundred years ago the average American workweek was over 60 hours; today it's under 35. One hundred years ago 6% of manufacturing workers took vacations; today it's over 90%. One hundred years ago the average housekeeper spent 12 hours a day on laundry, cooking, cleaning and sewing; today it's about three hours.

As far as the quality of the goods we buy, try picking up an electronics catalogue from, oh, say, 2001 and ask yourself whether there's anything there you'd want to buy. That was the year my friend Ben spent $600 for a 1.3-megapixel digital camera that weighed a pound and a half. What about services, such as health care? Would you rather purchase today's health care at today's prices or the health care of, say, 1970 at 1970 prices? I don't know any informed person who would choose 1970, which means that despite all the hype about costs, health care now is a better bargain than it's ever been before.

The moral is that increases in measured income -- even the phenomenal increases of the past two centuries -- grossly understate the real improvements in our economic condition. The average middle-class American might have a smaller measured income than the European monarchs of the Middle Ages, but I suspect that Tudor King Henry VIII would have traded half his kingdom for modern plumbing, a lifetime supply of antibiotics and access to the Internet.

Some interesting numbers and thought experiments here. I've read the health care comparison he poses somewhere before, and it is an important point to make when considering the rising cost of health care in this country. He then goes on to praise what he sees as the source of this wealth: technological progress and ideas, not just technological ideas, but ideas of all kinds including new ideas in economics. He makes good points here, but I don't think that he has really hit the fundamental source. The examples of economic ideas that he cites are very particular, concrete ideas, like Julian Simon coming up with the idea of bribing airline passengers to give up their seats on overbooked flights and so on. But the fundamental source of the incredible progress of the past 100 years is a particular economic-political system that fosters and allows for such progress in technology and ideas, and that system is of course capitalism, the system that promotes liberty and protects individual rights.

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