Railroads and American Economic Growth: Essays in Econometric History

absence of railroads actual agricultural commodities agricultural production American amount Annual Report approximately assumption average distance capital cents per ton-mile Column computation construction consumption corn cost of wagon cotton counties decade distribution domestic crude iron domestic pig economic growth farm feasible region figure freight furnaces Gallman grain haul Historical Statistics 1960 History increase inventory iron industry JOINING POINT land linear programming loss in national LOUP RIVER miles Missouri River multiplied national income navigable North Atlantic region Pennsylvania Philadelphia convention pig iron pork primary markets PROPOSED CANALS rail shipping point rate per ton-mile ratio roads Rostow secondary markets sector shipments social saving SOURCES AND NOTES ẞ estimate supply Table take-off tion tonnage track track-miles trade U.S. Bureau U.S. Congress United value added via rail W. W. Rostow wagon haulage wagon rates wagon transportation water rates water shipping point water transportation waterways wheat York