There was some really cool research on changing food behavior after World War II by Kurt Lewin. They found that while price mattered, they also had to figure o

There was some really cool research on changing food behavior after World War II by Kurt Lewin. They found that while price mattered, they also had to figure out the dynamics of who bought food and why all the way from the store to the pantry to the dinner table. "Frontiers in Group Dynamics: II. Channels of Group Life; Social Planning and Action Research" is worth a read if you're interested in that sort of thing, (http://journals.sagepub.com/doi/abs/10.1177/001872674700100201 http://journals.sagepub.com/doi/abs/10.1177/0018726747001002...)