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Provedor de dados:  AgEcon
País:  United States
Título:  Dynamic general equilibrium analysis of improved weed management in Australia's winter cropping systems
Autores:  Wittwer, Glyn
Vere, David T.
Jones, Randall E.
Griffith, Garry R.
Data:  2011-12-06
Ano:  2005
Palavras-chave:  CGE modelling
Weed management
Crop Production/Industries
Resumo:  A recent analysis indicated that the direct financial cost of weeds to Australia’s winter grain sectorwas approximately $A1.2bn in 1998–1999. Costs of thismagnitude represent a large recurring productivity loss in an agricultural sector that is sufficient to impact significantly on regional economies.Using amulti-regional dynamic computable general equilibrium model, we simulate the general equilibrium effects of a hypothetical successful campaign to reduce the economic costs of weeds. We assume that an additional $50m of R&D spread over five years is targeted at reducing the additional costs and reduced yields arising from weeds in various broadacre crops. Following this R&D effort, one-tenth of the losses arising from weeds is temporarily eliminated, with a diminishing benefit in succeeding years. At the national level, there is a welfare increase of $700m in discounted net present value terms. The regions with relatively high concentrations of winter crops experience small temporary macroeconomic gains.
Tipo:  Article
Idioma:  Inglês
Relação:  Australian Journal of Agricultural and Resource Economics>Volume 49, Issue 4, December 2005
Formato:  15

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