In an article on consumers’ expectations for home prices, Robert Shiller writes,
with the median home price under $200,000, according to RealtyTrac…
Pointer from Mark Thoma.
My question is: Where are these homes that are priced at less than $200,000? My niece in LA, my daughter in DC, another daughter in NY, and my third daughter in Boston would sure like to know.
This gets back to the issue of widening differences in income and housing costs within and across metro areas. I mentioned that issue last month, when I cited Joel Kotkin’s finding that much of the population growth in recent years has been in the far suburbs.
Suppose that housing cost is 25 percent of income, and suppose that close to the center of a city housing cost is 5 times what it is in the outer suburbs. That means that the cost of living is 1.25 times as high close in as it is far out. Yes, you should adjust for commuting time and cost, the value of different amenities, and so on. But that is a huge difference.
Consider that, at a national level, economic experts soberly analyze changes in trend productivity growth of 0.5 percent per year. To measure productivity changes, you need to have accurate measures of real GDP. To measure real GDP, you need to have accurate measures of “the” rate of inflation.
But what if inflation is 5 percent higher in downtown LA than it is 30 miles away? Which is the accurate measure of inflation? Even a slight mistake in aggregating across different areas could completely change the picture for national productivity growth.
I find myself thinking that the multiplicity of economies within the U.S. really matters. For example, I could imagine that the minimum wage would have a much bigger effect on employment in the locations with those sub-$200,000 houses than in higher-cost areas, where employers probably have to pay above the minimum, anyway. I can imagine that downward stickiness of wages matters a lot if you have inflation differentials across areas of 5 percent or so.
In trying to view the U.S. economy, I am tempted to drop the macroeconomic lens and replace it with the international trade lens.