Government plans don't work.

Unlike planners, markets can cope with complexity and change.

from the October 18, 2007 edition

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Some of the worst plans today are so-called growth-management plans prepared by states and metropolitan areas. They try to control who gets to develop their land and exactly what those developments should look like, including their population densities and mixtures of residential, retail, commercial, and other uses. "The most effective plans are drawn with such precision that only the architectural detail is left to future designers," says a popular planning book.

About a dozen states require or encourage urban areas to write such plans. Those states have some of the nation's least affordable housing, while most states and regions that haven't written such plans mostly have very affordable housing. The reason is simple: planning limits the supply of new housing, which drives up the price of all housing and leads to housing bubbles.

In states with growth-management laws, median housing prices in 2006 were typically 4 to 8 times median family incomes. In most states without such laws, median home prices are only 2 to 3 times median family incomes.

Few people realize that the recent housing bubble, which affected mainly regions with growth-management planning, was caused by planners trying to socially engineer cities. Yet it has done little to protect open space, reduce driving, or do any of the other things promised.

Politicians use government planning to allocate scarce resources on a large scale. Instead, they should make sure that markets – based on prices, incentives, and property rights – work.

Private ownership of wildlife could save endangered species such as the black-footed ferret, North America's most-endangered mammal. Variably priced toll roads have helped reduce congestion. Pollution markets do far more to clean the air than exhortations to drive less. Giving people freedom to use their property, and ensuring only that their use does not harm others, will keep housing affordable.

Unlike planners, markets can cope with complexity. Futures markets cushion the results of unexpected changes. Markets do not preclude government ownership, but the best-managed government programs are funded out of user fees that effectively make government managers act like private owners. Rather than passing the buck by turning sticky problems over to government planners, policymakers should make sure markets give people what they want.

• Randal O'Toole is a senior fellow with the Cato Institute and author of the recent book, "The Best-Laid Plans: How Government Planning Harms Your Quality of Life, Your Pocketbook, and Your Future."

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