Types of Social Dilemmas

                         Individual                      Collective            
                Delay           No Delay         Delay            No Delay

Trap           Smoking,         Reckless        Natural         Traffic Jams     
               Drinking         Driving         Resources                        

Fence          Studying,        Reading         Public Goods    Shoveling Snow   
               Going to                                                          
               Dentist                                                           

Solving Social Dilemmas

1. Structural Changes
   1. Mutual Coercion Mutually Agreed Upon
   2. Change Payoff Structure
   3. Privatization
2. Change Individual Decisions
   1. Increase information about others' choices
   2. Increase familiarity with other group members
   3. Increases in-group identity
   4. Increases trust
3. Effect of group size
4. Teach social values and responsibility
5. Induce public commitment