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| Irz, Xavier T.; Hadley, David. |
| To improve the welfare of the rural poor and keep them in the countryside, the government has been spending 40% of the value of agricultural GDP on agricultural support services. But can investment make smallholder agriculture prosperous in such adverse conditions? This paper derives an answer by applying a two-output six-input stochastic translog distance function, with inefficiency effects and biased technical change to panel data for the 18 districts and the commercial sector, from 1979 to 1996. This model demonstrates that herds are the most important input, followed by draft power, land and seeds. Multilateral indices for technical change, technical efficiency and total factor productivity (TFP) show that the technology level of the commercial sector... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Research and Development/Tech Change/Emerging Technologies. |
| Ano: 2003 |
URL: http://purl.umn.edu/25899 |
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| Bateman, Ian J.; Cole, Matthew A.; Cooper, P.; Georgiou, Stavros; Hadley, David; Poe, Gregory L.. |
| Through a combination of experimental and field analysis, we demonstrate that varying the visible choice set (i.e., set of goods which, at any given point in a valuation exercise, the respondent perceives as being the full extent of purchase options which will be made available in the course of that exercise) strongly affects observed scope. These results challenge the conclusion that contingent values are plagued by embedding and ordering effects, suggesting that such effects can be eliminated when the respondent is completely informed about the entirety of valuation tasks prior to answering the first elicitation question. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Research Methods/ Statistical Methods. |
| Ano: 2001 |
URL: http://purl.umn.edu/20480 |
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| Hadley, David; Shankar, Bhavani; Thirtle, Colin G.; Coelli, Tim J.. |
| This paper fits a translog stochastic production frontier with inefficiency effects to a panel of 693 UK dairy farms for the period from 1982 to 1997. The Cobb Douglas is rejected as inadequate relative to the less restrictive translog functional form and the frontier model is statistically superior to the mean response function, despite the fact that on average the farms were 87% efficient. Technological progress, at 1.7% per annum, is the dominant force, but efficiency declined at 0.8% per year, which reduced productivity growth to 0.9% per annum. The inefficiencies are explained in the second stage of the model, where the greatest cause is financial exposure, captured here by the ratio of debts to assets. Older farmers, those in less favoured areas and... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Livestock Production/Industries. |
| Ano: 2001 |
URL: http://purl.umn.edu/20656 |
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| Fleming, Euan M.; Hadley, David; Holloway, Garth J.. |
| Interest has been growing in the nature of synergies in agroecosystems, prompted in part by growing concerns about the effects of environmental degradation on agricultural productivity and interrelations between agricultural outputs and ecosystem outputs. Most productivity analyses focus on technology, technical inefficiency and scale effects on productivity; yet scope economies derived from synergies can also have substantial effects that are likely to increase in the future. Scope economies take on special importance when farms diversify to halt declining biodiversity and other forms of environmental degradation. We present results of an empirical case study based on panel data on farms in England and Wales. A stochastic input distance function is... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Biodiversity; Ecosystem outputs; Scope economies; Synergy; Environmental Economics and Policy. |
| Ano: 2010 |
URL: http://purl.umn.edu/59076 |
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