Companies whose executives visited the White House during the Obama administration had their stock prices rise more than normal after the meetings, but underperformed after Donald Trump won the election, a new paper by researchers at the University of Illinois finds. The finance professors, Jeffrey Brown and Jiekun Huang, published their findings in a working paper issued by the National Bureau of Economic Research and titled "All the President's Friends: Political Access and Firm Value."
"Following meetings with federal government officials, firms receive more government contracts and are more likely to receive regulatory relief," the professors write. "Firms with access to the Obama administration experience significantly lower stock returns following the release of the  election results than otherwise similar firms. Overall, our results provide evidence suggesting that political access is of significant value to corporations."