Steve Chapman

Someone once said that the best way to get rid of a bad law is to enforce it vigorously, thus making its flaws visible to all. Federal regulators may not induce repeal of the antitrust laws, but they show a talent for making the statutes look obsolete.

It's widely accepted that one of the crucial functions of government is to protect against monopolists and cartels. Left to its own devices, many critics of capitalism believe, the market would allow voracious corporations to collude, joining forces to hold consumers upside down and shake the nickels out of their pockets. To ensure that free markets operate for the benefit of all, we are told, the government has to strictly police mergers to keep any company from gaining an unfair advantage.

That is what it claims to be doing in two different sectors. Federal Communications Commission Chairman Kevin Martin has expressed serious qualms about approving a wedding between the only two satellite radio companies, Sirius and XM. The Federal Trade Commission is going to court to block a merger between two organic grocery chains, Wild Oats and Whole Foods.

In both cases, the rationale is that fewer companies will mean fewer choices and higher prices. But consumers who want what these firms provide have more options than the Milky Way has stars. If a couple of those stars cease to exist, nobody will notice, and besides, new stars are born every day.

Organic food consumers would not be the suffering captives of this new company. The business is growing like an organic weed. Every grocery store has a raft of offerings, and chains from Wal-Mart to Trader Joe's are fighting to get their share of sales. If the bigger Whole Foods price-gouging, customers can easily find other sources for what they want -- from farmers markets to online suppliers.

The key government error is defining the market as a narrow sector isolated from other sectors that provide reasonable substitutes. That same mistake explains the FCC chairman's aversion to the satellite radio deal, as well as the letter from 72 members of the House of Representatives claiming it would have "devastating" consequences for listeners.

As it happens, the alternative to one satellite radio company may not be two companies but none. The existing ones have accumulated some $7 billion in losses between them. The merger may allow them to reduce costs, so they can eke out a profit and stay in business.

Steve Chapman

Steve Chapman is a columnist and editorial writer for the Chicago Tribune.

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