1. Did Railroads Induce or Follow Economic Growth? Urbanization and Population Growth in the American Midwest, 1850-1860;J Atack;Social Science History,1987
2. On the Use of Geographic Information Systems in Economic History: The American Transportation Revolution Revisited;Jeremy Atack;Journal of Economic History,2013
3. The Impact of Access to Rail Transportation on Agricultural Improvement: The American Midwest as a Test Case, 1850-1860;Robert Margo;Journal of Transportation and Land Use,2011
4. Trade liberalisation and "revealed" comparative advantage;Bela Balassa;The Manchester School,1965
5. Elasticities and the inverse hyperbolic sine transformation;Marc Bellemare;Oxford Bulletin of Economics and Statistics