constant_definitions/batch4/stochastic_constants.py

# Stochastic PD -- expected payoffs under action noise
SPD_CC = 3
SPD_CD = 1
SPD_DC = 4
SPD_DD = 2

# Risk Dominance -- payoff-dominant vs risk-dominant equilibria
RD_PAYOFF_DOMINANT = 7
RD_RISK_DOMINANT = 5
RD_MISCOORDINATION = 0

# Threshold Public Goods -- step-function provision
TPG_ENDOWMENT = 5
TPG_THRESHOLD = 6
TPG_SUCCESS_BONUS = 4

# Evolutionary PD -- long-run strategy expected payoffs
EPD_COOP_COOP = 3
EPD_COOP_DEFECT = 0
EPD_DEFECT_COOP = 5
EPD_DEFECT_DEFECT = 1
EPD_TFT_DEFECT = 1
EPD_DEFECT_TFT = 2