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Аграрная экономика - – это часть экономической теории. Она изучает использование ограниченных ресурсов в производстве, переработке, реализации и потреблении продовольствия... (подробнее...)
Всего публикаций в данном разделе: 2

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АБВГДЕЖЗИЙК ЛМНОП РС ТУФХ ЦЧШ ЩЭЮЯ
A B C D E F G H I J K L M N OP QRS T UV W XYZ
 
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все А БВГДЕЖЗИЙКЛМНОП РСТУФХЦЧШЩЭЮЯ
A BCD E F G HI JKLMNOPQR ST UVW XYZ
 

Опубликовано на портале: 30-11-2003
Atanu Ghoshray, Tim Lloyd
2003
This paper brings time series techniques to bear on the relationships between the prices of the principal types of wheat traded internationally. In all, the relationships between eleven wheat prices (categorised by wheat quality, harvest date and port of despatch) are scrutinised to uncover the structure of the wheat market implicit in the behaviour its prices reveal. The statistical evidence supports the notion of a highly integrated market that is segmented according to wheat strength . the principal determinant of end-use. Three segments are identified: a market for "strong" (bread-making) wheat, another for "weak" (confectionary products- making) wheat and a third for medium strength wheat suitable for unleavened breads and noodles. Whilst informative, market integration - detected by cointegration among prices . is not altogether surprising, yet the presence of cointegration implies a causal structure, which is of more cogent interest. Among a number of complementary techniques, linkages are uncovered using an innovative concept of irreducible cointegration vectors (Davidson 1998, Barassi et al 2001) which provides new evidence on price linkages. Statistical evidence is robust and not test-dependent. Specifically, we find a dominant price leader in each sub-market. In terms of its pricing, the EU is found to play a passive role in the world market, confirming a widely held view.
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Опубликовано на портале: 31-12-2003
Jing Zhu
Durban, 2003
China’s accession to the WTO poses great challenges to the Chinese agricultural sector, especially to the grain producers. Compared with major grain exporters in the world, most grain crops in China are high in production cost and weak in market competitiveness. This can be partly attributed to the fact that Chinese farmers are facing with poorer agricultural production infrastructures and inadequate public investment in agricultural research and extension, which leads to the lower efficiency in private inputs and thus higher private cost per unit of product. After China joining the WTO, protective and administrative measures conflicted with the URAA cannot be utilized as before. Alternative measures should be explored to provide help to farmers to improve competitiveness of their product. Public investment in agricultural research and other production infrastructures should be considered with high priority as one of the policy alternatives.

This paper examines the effects of public investment in agricultural research on the reduction of production cost of major grain crops in China by using crop-specific data for the past 20 year. It is concluded that, increasing public investment in agricultural research, which is well within the ‘green box’ policy framework and allowed by the WTO rules, is a plausible and effective measure to reduce grain producer’s private input and to enhance the competitiveness of grain products. It is also of great significance to sustained food security in China.
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