President Donald Trump’s decision to end the Deferred Action for Childhood Arrivals, or DACA, will have negative consequences on the United States economy, according to experts and leaders in the business community... Deporting American residents who entered the country illegally as children could cost the U.S. economy about $280 billion, according to a study by the CATO Institute published in January. “Many Americans believe that the presence of unauthorized immigrants is harmful to the economy and would like to see steps taken to reduce their presence,” wrote economist Ike Brannon, a co-author of the study. “However, a repeal or roll-back of DACA would harm the economy and cost the U.S. government a significant amount of lost tax revenue.”... More than 400 business leaders... signed a letter to President Trump ahead of his decision arguing that in addition to humanitarian reasons, DACA recipients play an important role in the U.S. economy... [In a statement] General Motors said it “stands with the Dreamers we employ and the hundreds of thousands of Dreamers employed by multiple companies across the U.S. Protecting American companies’ access to talented workers from outside of the U.S. is an important component for our global competitiveness and our success in the U.S.”... U.S. Chamber of Commerce Senior Vice President and Chief Policy Officer Neil Bradley... call[ed] the decision “contrary to fundamental American principles and the best interests of our country... With approximately 700,000 DACA recipients working for all sorts of businesses across the country, terminating their employment eligibility runs contrary to the president’s goal of growing the U.S. economy."... Javier Palomarez, President and CEO of the United States Hispanic Chamber of Commerce, resigned from Trump’s Diversity Council over the DACA decision.