An experiment to change the food environment in 'food deserts' would involve giving residents money to buy food and manipulating store inventory and pricing to make healthier options cheaper and less healthy options more expensive.

“in the treatment group you would do a whole bunch of other stuff which is you teach them how to cook you give them the money and oh by the way then you go into this is the really hard part of the experiment you go into the stores where they will buy all of their food and you price switch everything position switch everything and see if you can create a new default”