Continued Existence of Cows Disproves Central Tenets of Capitalism?
NBER Working Paper No. 19437
---- Acknowledgments ----
The authors thank Rachel Strohm, Ellen Degnan and Joe Long for commenting on drafts of this paper, and Donghyuk Kim for research assistance. We thank the Bill and Melinda Gates Foundation for support for this project. All errors and opinions are our own. The views expressed herein are those of the authors and do not necessarily reflect the views of the National Bureau of Economic Research.