1. Infrastructure and productivity: what are the underlying mechanisms?;Anderson,2007
2. Is public expenditure productive?;Aschauer;Journal of Monetary Economics,1989
3. Canning, David, Esra, Bennathan, 2001. The Social Rate of Return on Infrastructure Investments, World Bank Research Project on “Infrastructure and Growth: A Multicountry Panel Study”, 48 p.
4. The Railroads, the Nation’s First Business;Chandler,1965
5. Labor mobility, market integration, and wage convergence in late 19th century India;Collins;Explorations in Economic History,1999