Fuglie, Kieth O. and Paul W. Heisey, Economic Returns to Public Agricultural Research, USDA Economic Research Service, Economic Brief. Number 10, September 2007.
Huffman, Wallace E. and Robert E. Evenson, Do Formula or Competetive Grant Funds Have Greater Impacts on State Agricultural Productivity? American Journal of Agricultural Economics. 88(4) November 2006 783-798.
Scanes, C.G., The Case for Funding Agricultural Research, 2007 Poultry Science. 86:2483-2484.