Title of article :
Is livestock research unproductive?: Separating health maintenance from improvement research
Author/Authors :
Robert Townsend، نويسنده , , Colin Thirtle، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2001
Keywords :
Livestock , Maintenance research , Returns to R&D
Journal title :
Agricultural Economics
Journal title :
Agricultural Economics