In the five years since the breakup of the old Bell phone system, one of the last vestiges of Government regulation has been the Federal Communications Commission's control over AT&T;'s profit margin on its long-distance services. The company has been permitted to cover its costs and earn a return of precisely 12.2% on its investment. Last week the FCC voted to liberate AT&T;'s earnings, which should boost competition in the long-distance business.
AT&T; will now have an incentive to cut costs, which could lead not only to higher profits but also to an opportunity to charge lower rates. At the same...