Article(electronic)#1September 1990MathematicaIn: The Economic Journal, Volume 100, Issue 402, p. 1018Spady, Richard H.; Wolfram, Stephen; Grayson, Daniel; Maeder, Roman; Cetjin, Henry; Gray, Theodore; Omohundro, Stephen; Ballman, DavidSpady, Richard H.; Wolfram, Stephen; Grayson, Daniel; Maeder, Roman; Cetjin, Henry; Gray, Theodore; Omohundro, Stephen; Ballman, David; Keiper, JerryOrder using Subito