But in his dissent, portions of which he read from the bench, Justice Stephen G. Breyer said there was no compelling reason to overturn a century’s worth of Supreme Court decisions that had affirmed the prohibition on resale maintenance agreements.

“The only safe predictions to make about today’s decision are that it will likely raise the price of goods at retail and that it will create considerable legal turbulence as lower courts seek to develop workable principles,” he wrote. “I do not believe that the majority has shown new or changed conditions sufficient to warrant overruling a decision of such long standing.”

During the period from 1937 to 1975 when Congress allowed the states to adopt laws that permitted retail price fixing, economists estimated that such agreements covered about 10 percent of consumer good purchases. In today’s dollars, Justice Breyer estimated that the agreements translate to a higher annual average bill for a family of four of roughly $750 to $1,000.

The dissent was signed by Justices John Paul Stevens, David H. Souter and Ruth Bader Ginsburg.

The case involved an appeal of a judgment of $1.2 million against Leegin Creative Leather Products Inc. after it cut off Kay’s Kloset, a suburban Dallas shop, for refusing to honor Leegin’s no-discount policy. The judgment was automatically tripled under antitrust law.

Leegin’s marketing strategy for finding a niche in the highly competitive world of small leather goods was to sell its “Brighton” line of fashion accessories through small boutiques that could offer personalized service. Retailers were required to accept a no-discounting policy.

After the United States Court of Appeals for the Fifth Circuit, in New Orleans, upheld the judgment and said it was bound by Supreme Court precedent, Leegin took the case to the Supreme Court. Unless it is settled, the case, Leegin Creative Leather Products v. PSK Inc., will now be sent down to a lower court to apply the new standard.

The Supreme Court adopted the flat ban on resale price agreements between manufacturers and retailers in 1911, when it founded that the Dr. Miles Medical Company had violated the Sherman act. The company had sought to sell medicine only to distributors who agreed to resell them at set prices. The court said such agreements benefit only the distributors, not consumers, and set a rule making such agreements unlawful.