1. The Econonomic Implications of Learning by Doing;Arrow;Review of Economic Studies,1962
2. Economic Welfare and the Allocation of Resources for Invention;Arrow,1962
3. Thershold Externalities in Economic Development;Azariadis;University of Pennsylvania Working Paper,1988
4. A cross Country Study of Growth, Savings, and Government;Barro;NBER Working Paper 2855,1989
5. Economic Growth in a Cross Section of Countries;Barro;Harvard University Working Paper,1989