Available at suncomiabstracte2424036. Accessed January IS, 2015. 29. Simon HA (1955) A Wier:aced model of ratio.* choke. 0 ) (con 690119-I It 30. Trotsky A. Kahneman D (1974) Judgment under uncertainty Heuristes and biases. Science 18501571:1124-1131. 31. Kahnemen D. Slavic P. Tvenky A 4191la Aelpment Wider Unce