Thirtle, Colin <br/><br/>
Testing induced innovation hypothesis in South African agriculture: an error correction approach 
by Colin Thirtle, Robert Townsend, and Johan van Zyl 
 - Washington, DC  World Bank  1995 
 - 31p. 
 - Policy research working paper 1547 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural innovations --Africa, Southern<br/>Agricultural productivity --Africa, Southern