1.  44
    Ilan Fischer (2003). The Emergence of Reactive Strategies in Simulated Heterogeneous Populations. Theory and Decision 55 (4):289-314.
    The computer simulation study explores the impact of the duration of social impact on the generation and stabilization of cooperative strategies. Rather than seeding the simulations with a finite set of strategies, a continuous distribution of strategies is being defined. Members of heterogeneous populations were characterized by a pair of probabilistic reactive strategies: the probability to respond to cooperation by cooperation and the probability to respond to defection by cooperation. This generalized reactive strategy yields the standard TFT mechanism, the All-Cooperate, (...)
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  2.  27
    Ilan Fischer & Ravid Bogaire (2012). The Group Calibration Index: A Group-Based Approach for Assessing Forecasters' Expertise When External Outcome Data Are Missing. [REVIEW] Theory and Decision 73 (4):671-685.
    The Group Calibration Index (GCI) provides a means of assessing the quality of forecasters’ predictions in situations that lack external feedback or outcome data. The GCI replaces the missing outcome data with aggregated ratings of a well-defined reference group. A simulation study and two experiments show how the GCI classifies forecaster performance and distinguishes between forecasters with restricted information and those with complete information. The results also show that under certain circumstances, where members of the reference group have high-quality information, (...)
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  3. Ilan Fischer (2009). Friend or Foe: Subjective Expected Relative Similarity as a Determinant of Cooperation. Journal of Experimental Psychology: General 138 (3):341-350.
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