@article {15312,
	title = {Competition and the Evolution of Efficiency},
	journal = {Journal of Economic Behavior and Organization},
	volume = {30},
	number = {1},
	year = {1996},
	pages = {25-43},
	url = {https://doi.org/10.1016/S0167-2681(96)00840-2},
	author = {Martin L. Weitzman and Tomas Sj{\"o}strom}
}
