231,000 additional jobs could be created within a year, thanks to the rapid transition from 3G to 4G mobile-broadband networks. (This possibility is cited in the study, "The Employment Effects of Advances in Internet and Wireless Infrastructure: Evaluating the Transitions from 2G to 3G and from 3G to 4G," which was co-authored by economists Robert J. Shapiro, Chairman of the Globalization Initiative at NDN and former US Under Secretary of Commerce for Economic Affairs, and Kevin A. Hassett, Senior Fellow and Director of Economic Policy Studies at the American Enterprise Institute.)