Economies of Density versus Natural Advantage: Crop Choice on the Back Forty
---- Acknowledgements -----
Holmes is grateful to NSF Grant 0551062 for support of this research. We have benefited from the comments of seminar participants at the NBER agglomeration conference, UBC Sauder School of Business, UBC Economics, UBC Agricultural Economics, the University of Minnesota, and the RSAI North American meetings. We are grateful to Julia Thornton for research assistance. The views expressed herein are those of the authors and not necessarily those of the Federal Reserve Bank of Minneapolis, the Federal Reserve System, or the NBER.