@techreport{NBERr1455,
 title = "Sources of Technological Divergence between Developed and Less Developed Economies",
 author = "Raaj Kumar Sah and Joseph E. Stiglitz",
 institution = "National Bureau of Economic Research",
 type = "Working Paper",
 series = "Reprint Series",
 number = "1455",
 year = "1990",
 month = "October",
 URL = "http://www.nber.org/papers/r1455",
 abstract = {},
}