According to the 2017 Corporate Travel Index compiled by Business Travel News, the average daily cost for business travel in the United Statesrose to $321 per day (Executive Travel website, https://executivetravel.com/new-business-travel-study-says-average-per diem-is-now-321day/). The file Travel contains sample data for an analogous study on the estimated daily living costs for an executive traveling to various international cities. The estimates include a single room at a four-star hotel, beverages, breakfast, taxi fares, and incidental costs.