, Vol. 69, No. 4 July, 2001, 891 Ž. 934
consider the status of subjective probability prior to the work of Savage 1954 .Ž. Writers like Keynes 1921 and Knight 1921 had advanced strong argumentsŽ. Ž. that behavior under known probabilities risk and unknown probabilities unŽ. Ž certainty are significantly different. In light of these arguments, the claim that.