Well, that is what is reported here.
"Using first quarter ticketing data from the Airlines Reporting Corp. (ARC), publicly available travel data and GBTA’s economic research and models, GBTA developed an ‘uncertainty forecast’ for 2017 showing the impact this mounting geopolitical uncertainty is having on the economy. There is no question that uncertainty is bad for business travel and bad for the global economy. - See more at: https://www.traveldailynews.com/post/united-states-projected-to-lose-13-billion-in-travel-related-expenditures-in-2017#sthash.OXI7MNHH.dpuf"
Time will tell so you might want to check out the info from Global Business Travel Association GBTA.