- Create a meta-theory for optimizing something like social welfare in the presence of actions that can change preferences (e.g. you should be able to reason that if giving someone heroin makes them addicted to heroin (alters their preferences in a way that makes them harder to please) and does nothing else, then it is undesirable to give them heroin; similarly, advertising which only makes people want something they wouldn't otherwise want and has no other effect is undesirable)
- See which econ thms fail in the presence of conspicuous consumption
- include the cost of computation