Notes
- Levy , D. M. 1992 . ‘Public capital and international labor productivity’ . Economics Letters , 39 : 365 – 368 .
- Terleckyj , N. E. and Levy , D. M. 1983 . ‘Effects of Government R&D on private R&D investment and productivity’ . Bell Journal of Economics , 14 : 551 – 561 .
- Kanigel . 1991 . The Man Who Knew Infinity, , New York : Scribners .
- Smith , A. 1776/1976 . Wealth of Nations, , Oxford : Oxford University Press .