Improved Measures of US International Services: The Cases of Insurance, Wholesale and Retail Trade, and Financial Services

Maria Borga, International Trade in Services and Intangibles in the Era of Globalization (University of Chicago Press, 2009), chap. 2, https://www.nber.org/books-and-chapters/international-trade-services-and-intangibles-era-globalization/improved-measures-us-international-services-cases-insurance-wholesale-and-retail-trade-and-financial.