Bloomberg California sent a warning shot in a potential showdown with the incoming Trump administration, with the state’s clean-air regulators digging in on mandates for an ever-greater number of electric and fuel-cell cars. The staff of California’s Air Resources Board called national efforts to promote electrification “very modest” after 2025 as it released a more than 660-page report on …

  Bloomberg WeWork Cos., the world’s largest co-working startup, is preparing to enter Argentina and Brazil while scouting potential sites in nearby countries as part of an expansion in Latin America. The New York-based shared-office startup, which was most recently valued at $16 billion, plans to open two locations in Sao Paulo in June, as well as at least one …

  Bloomberg Luxury residences in Greenwich, the Connecticut town that’s home to hedge funds and Wall Street executives, sold at a quicker pace in the fourth quarter as owners became more amenable to negotiating on price. Homes that sold in the top 10 percent of the Greenwich market — those priced $3.79 million or higher — spent an average of …