... 4.3 Decision matrices The standard format for the evaluation-choice routine in (individual) decision theory is that of a decision matrix. In a decision matrix, the alternatives open to the decision- maker ... standard representation of a decision problem that is used in mainstream theory of individual decision- making. In order to do this, we need some basic concepts of decision theory, such as alternative, ... 34 6. Bayesianism 37 6.1 What is Bayesianism? 37 6.2 Appraisal of Bayesianism 40 7. Variations of expected utility 45 7.1 Process utilities and regret theory 45 30 Expected utility theory...