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Testing the induced innovation hypothesis - an error correction model of South African agriculture
Thirtle, C.; Townsend, R.; van Zyl, J. - In: Agricultural economics : the journal of the … 19 (1998) 1, pp. 145-158
Persistent link: https://www.econbiz.de/10006992280
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The rise and fall of public sector plant breeding in the United Kingdom - a causal chain model of basic and applied research and diffusion
Thirtle, C.; Bottomley, P.; Palladino, P.; … - In: Agricultural economics : the journal of the … 19 (1998) 1, pp. 127-144
Persistent link: https://www.econbiz.de/10006992281
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Short and long-run returns to agricultural R&D in South Africa, or will the real rate of return please stand up?
Schimmelpfennig, D.; Thirtle, C.; van Zyl, J.; Arnade, C.; … - In: Agricultural economics : the journal of the … 23 (2000) 1, pp. 1-16
Persistent link: https://www.econbiz.de/10006983875
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Modeling the length and shape of the R&D lag : an application to UK agricultural productivity
Thirtle, Colin G.; Piesse, Jenifer; Schimmelpfennig, … - In: Agricultural economics : the journal of the … 39 (2008) 1, pp. 73-85
Persistent link: https://www.econbiz.de/10003745836
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Energy substitutability in transition agriculture : estimates and implications for Hungary
Shankar, Bhavani; Piesse, Jenifer; Thirtle, Colin G. - In: Agricultural economics : the journal of the … 29 (2003) 2, pp. 181-193
Persistent link: https://www.econbiz.de/10001799471
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District-level total factor productivity in agriculture : Western Cape Province, South Africa, 1952 - 2002
Conradie, Beatrice; Piesse, Jenifer; Thirtle, Colin G. - In: Agricultural economics : the journal of the … 40 (2009) 3, pp. 265-280
Persistent link: https://www.econbiz.de/10003846105