from otree.api import ( models, widgets, BaseConstants, BaseSubsession, BaseGroup, BasePlayer, Currency as c, currency_range, ) doc = """ This is a one-shot "Prisoner's Dilemma". Two players are asked separately whether they want to cooperate or defect. Their choices directly determine the payoffs. """ class Constants(BaseConstants): name_in_url = 'decomposedinfo2' players_per_group = 2 num_rounds = 1 instructions_template = 'decomposedinfo2/instructions.html' # payoff if both players cooperate or both defect # payoff if 1 player defects and the other cooperates""", betray_payoff = c(300) betrayed_payoff = c(0) # payoff if both players cooperate or both defect both_cooperate_payoff = c(200) both_defect_payoff = c(100) class Subsession(BaseSubsession): pass class Group(BaseGroup): pass class Player(BasePlayer): decision = models.StringField( choices=[['A', 'A'], ['B', 'B'], ['C', 'C'], ['D', 'D'], ['E', 'E']], doc="""This player's decision""", widget=widgets.RadioSelect, ) def other_player(self): return self.get_others_in_group()[0] def set_payoff(self): self.payoff = 0