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A unanimous ruling by the Supreme Court clarifies how companies with “far-flung” business operations should establish a home base for litigation purposes, and will probably move some civil suits to federal venues rather than state courts in the future, said lawyers familiar with the case.

Transportation leaders said last week they hoped to complete a long-term surface transportation reauthorization before the end of the year, although paying for the legislation’s increased infrastructure spending remains a major obstacle.

A sharp decline in the export of U.S. frozen processed potatoes to Mexico — primarily driven by retaliatory Mexican tariffs — has resulted in a corresponding loss of business for U.S. refrigerated motor carriers that service the Mexican market.

LAS VEGAS — Already expected to eliminate several thousand truckers from the driving pool, the federal government’s new truck safety rating system is likely to threaten the career of thousands more, as well the fortunes of many fleets, carrier executives and others familiar with the program said.

Worker productivity jumped 6.9% in the fourth quarter, capping the largest one-year gain since 2002, the Labor Department said Thursday.

The U.S. Coast Guard has rejected plans for a second Ambassador Bridge span connecting Detroit to Windsor, Ontario, the Detroit News reported.

The U.S. economy’s service sector improved in February, the Institute for Supply Management said Wednesday.

U.S. manufacturing activity expanded for a seventh straight month in February, the Institute for Supply Management said.

Construction spending fell 0.6% in January, the Commerce Department reported.