I just saw a student writing his Masters thesis asked us for help. He is asking us to fill up a survey he is conducting on PPPs/P3s/PFIs. You can see his goals on this link.I am very pleased to help him and try get as many people as possible filling his survey. I am pretty sure that if gets lots data from all of us his research will be very interesting to us in the future.I also leave you the direct link to the questionnaire. Good luck George!