General Motors is laying off about 1,000 workers worldwide, shedding costs as it tries to compete in a crowded global automobile market.The workers, mostly white-collar, were notified about the decisions early Friday. The company confirmed the layoffs in a statement but gave few details. 3 GM and other automakers have been navigating an uncertain transition to electric vehicles (above). AFP via Getty Images“We need to optimize for speed and excellence,” the statement said. “This includes operating with ef ...