Railroads and American Economic Growth: Essays in Econometric History

absence of railroads Albert Fishlow American Economic Growth amount Annual Report approximately assumption average distance average weight Bulletin capital cars Census Column computed construction corn cotton counties crude iron decade distribution domestic pig domestic pig iron equation farm feasible region figure Fishlow freight furnaces Gallman grain gross tons haul History important increase interregional inventory iron consumed iron industry JOINING POINT land linear programming loss in national manufacturing ment miles mills Missouri River multiplied national income navigable output Pennsylvania Philadelphia convention pig iron primary markets production of rails Railroads and American ratio rerolled River roads Rostow routes secondary markets sectors shipments Simon Kuznets social saving SOURCES AND NOTES ẞ estimate Table take-off tion tonnage track track-miles trade U.S. Bureau U.S. Congress United value added W. W. Rostow wagon rates wagon transportation water rates water transportation waterways weight of rails wheat York