No there isn't. However users in general seem to want to be the AI more than the human, which might (and is starting to) lock up the economy. I'm thinking of introducing a credit cap.
Yes, because it was the same in my case... Tried to play as the AI for a long time, and did not get any prompts, so I figured everyone is in line for the part :) loved the idea, please do update if you bring in a credit cap