By ‘their decision’ do you mean the decision to cooperate or defect? If so you would predict people would not offer to donate if there was no choice involved (e.g. all participants in the survey automatically receive one entry)?
It does not seem like this is what people are describing e.g. http://lesswrong.com/lw/j4y/2013_less_wrong_censussurvey/a3xl http://lesswrong.com/lw/j4y/2013_less_wrong_censussurvey/a2zz and http://lesswrong.com/lw/j4y/2013_less_wrong_censussurvey/a36h
By ‘their decision’ do you mean the decision to cooperate or defect? If so you would predict people would not offer to donate if there was no choice involved (e.g. all participants in the survey automatically receive one entry)?
It does not seem like this is what people are describing e.g. http://lesswrong.com/lw/j4y/2013_less_wrong_censussurvey/a3xl http://lesswrong.com/lw/j4y/2013_less_wrong_censussurvey/a2zz and http://lesswrong.com/lw/j4y/2013_less_wrong_censussurvey/a36h