I can field that if you like.
The governments and proponents both go through a learning process. Some time ago, I wrote a chapter with Boardman Vining where we looked at North American P3s, some successes and failures. An example was a toll highway that I believe was in North Carolina. It was written with a contract under the expectation that toll volumes would be much higher than they were. The private proponent got in a bind with respect to bond financing, tolls went up, traffic went down, and they got into a worse bind and had to walk away. The government was left with a very expensive highway that nobody really wanted to use much. This was a failure. It was a bad contract design, and the governments and the proponents got it wrong in how they managed the bond issues and the financing terms around them. You learn. If you say, “Doctor, it hurts when I do that”, don't do that. You learn and get better.