. Author manuscript; available in PMC: 2013 Dec 12.
Published in final edited form as: NBER Macroecon Annu. 2009 Apr;23:157–204. doi: 10.1086/593084
© 2008 by Quamrul H. Ashraf, Ashley Lester, and David N. Weil. All rights reserved. Short sections of text, not to exceed two paragraphs, may be quoted without explicit permission provided that full credit, including © notice, is given to the source.
Figure 14.
Effect of Land Substitutability on Income per Capita