Development of Land Rental Markets and Agricultural Productivity Growth: The Case of Northern Ethiopia Samuel Benina, Mohamed Ahmedb, John Penderc and Simeon Ehuid,1
Journal of African Economies 2005 14(1):21-54; doi:10.1093/jae/ejh032
http://jae.oxfordjournals.org/cgi/content/abstract/14/1/21