Home › Authors › Conference on Research in Income and Wealth National Bureau of Economic Research. ; Economic History Association U.S. 👤 Conference on Research in Income and Wealth National Bureau of Economic Research. ; Economic History Association U.S. 1 book Books by Conference on Research in Income and Wealth National Bureau of Economic Research. ; Economic History Association U.S. Trends in the American economy Trends in the American economy in the nineteenth century. A report of the National Bureau of Economic Research, New York 1960