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Всего публикаций в данном разделе: 535

Авторы:
А Б ВГ Д Е ЖЗИ ЙК Л М Н О П Р С Т У ФХ ЦЧ Ш ЩЭЮЯ
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
 
Названия:
А БВ Г Д ЕЖЗ И ЙК ЛМ Н О П Р С Т У ФХЦ ЧШЩЭ ЮЯ
A B C D E F G H I JKL M N O P Q R S T U V W XY Z
 

Опубликовано на портале: 25-12-2003
Hannah Chaplin, Sophia Moissey Davidova, Matthew Gorton
Durban, 2003
Survey evidence from three Central European Countries (Czech Republic, Hungary and Poland) is analysed to identify the degree of non-agricultural farm diversification and the factors facilitating or impeding it in individual farms. The effect of diversification on rural job creation is investigated. The results indicate that the level of diversification is relatively small and enterprise diversification by farmers is unlikely to generate sufficient new jobs and solve the problem of high rural unemployment. The attempt to transpose the Western European model of agricultural diversification to the acceding countries via the SAPARD programme is questionable, as non-farm centric rural policies appear to be more appropriate.
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Опубликовано на портале: 04-01-2004
Ming-Chin Chin, Robert D. Weaver
Zaragoza, 2002
Theoretical and simulation results clarify the role of forward procurement contracting as a determinant of spot price levels and volatility. A stylized model determines market share across quality when procurers forward contract to manage quality risk. Actual supply is specified as price dependent and stochastic. Simulation examines sensitivity of spot price level and volatility to extent of forward contracting, risk aversion, and ability to adjust spot market demand (recontracting).

The results show that as forward contracting increases mean spot price decreases and variance increases. This effect increases as risk aversion decreases and as the extent of recontracting adjustment in spot demand decreases.
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Опубликовано на портале: 30-11-2003
Anwar F. Chishti, Waqar Malik
2002
A theory-based graphical analysis of WTO’s trade liberalization policies (opening of close-economy to international trade and cuts in price-supports, import-tariffs and exportsubsidies) suggests that most of such policies would yield net social gains to the society, as a whole. The adverse effects and losses in producer surpluses of some of the policies would be balanced out by greater gains in consumer surpluses and vice versa. Losses in producer surpluses due to cuts in price supports and import tariffs are also expected to be partially subsided by reductions in export subsidies mainly granted by the USA and EU; hence, policies need to be enforced, not in isolation, but in a simultaneous fashion. Trade liberalization would help minimize control of individuals on trade, leave less room for individual policy makers, tax collectors and interest groups to exploit situations in their own interest and lead the economy to be run in accordance with the supply and demand forces based on the last lasting general tendency of human nature. This would help to achieve a sustainable and stable agricultural growth; however, more durable sustained growth would depend as how effectively trade liberalization is pursued and enforced the world over. Opening of closed economy for exportables, and withdrawal of export subsidies by foreign exporters would be proproducers and would directly contribute to poverty alleviation. Opening of economy for importables, withdrawal of price supports and tariff-cuts on imports would yield savings to consumers and would positively contribute towards poverty reduction.
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Опубликовано на портале: 30-11-2003
Shyamal K. Chowdhury
2003
This paper assesses the impact of access to information on farm household.s factor market participation. The paper tries to answer two questions. First, does use of telephone have any impact on farm household's factor market participation decision? Second, correcting for market participation, does use of telephone have any impact on the type of factor adjustment decision? For the first question, the paper uses a bivariate probit to correct for omitted variable bias and for the second question, the paper uses a two stage probit. Empirical findings of this paper suggest that access to information in the form of use of telephone has significant positive impact on factor market participation. The difference in market participation between telephone users and nonusers is around 14 percent. However, once a household participate in the market, the use of telephone does not have any impact on specific factor market participation.
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Опубликовано на портале: 29-11-2003
Jan Christensen
2002
Agri-environmental schemes are offered by a regulator to farmers. The farmer is to produce certain environmental goods and gets a pecuniary compensation for doing so. The problem of designing optimal schemes is dealt with using mechanisms design theory. This paper considers the situation where the regulator faces a budget constraint on total payments to farmers. It is shown, that 2 results of standard mechanisms design theory are affected when a budget restriction on total payments is present.
1) The ”no distortion at the top rule“ does not always hold.
2) It is not always optimal to o.er heterogeneous farmers heterogeneous argi-environmental schemes.
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Опубликовано на портале: 30-11-2003
J. Stephen Clark, Kurt K. Klein, William A. Kerr
2003
A new procedure is developed to estimate innovation possibility frontiers and test for biases in technological change. Using data on four inputs (land, machinery, chemicals and labour) from central Canada (Ontario and Quebec) over the period 1926-1985, we find that the innovations possibilities frontier shifts neutrally over time. This is consistent with Ahmad.s model of induced innovations, but is not consistent with de Janvry.s application of Ahmad.s model to the historical development of Argentine agriculture. Agricultural research in Canada has been conducted with the objective of developing cost minimizing technologies. Empirical support was found for this notion in the development of the innovation possibilities frontier.
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Опубликовано на портале: 31-12-2003
Jason Clay
USA: Island Press, 2003, 282 с.
Книга затрагивает проблематику взаимоотношения и влияния сельскохозяйственного производства на окружающую среду, а также возникающих экологических проблемах. Даются некоторые советы по повышению эффективности использования природных ресурсов в сельском хозяйстве и путях снижения степени негативного влияния на природные системы. Автор анализирует двадцать основных видов сельскохозяйственного сырья, предоставляя информацию об основных странах производителях и потребителях, видах и способах производства, анализ рыночных цепочек, влияния данного производства на окружающую среду, стратегий управления и применения лучших методов.

Опубликовано на портале: 24-12-2003
Tim J. Coelli, Euan Fleming
Durban, 2003
Smallholder farming systems in Papua New Guinea are characterised by an integrated set of cash cropping and subsistence food cropping activities. In the Highlands provinces, the subsistence food crop sub-system is dominated by sweet potato production. Coffee dominates the cash cropping sub-system, but a limited number of food crops are also grown for cash sale. The dynamics between sub-systems can influence the scope for complementarity between, and technical efficiency of, their operations, especially in light of the seasonality of demand for household labour and management inputs within the farming system. A crucial element of these dynamic processes is diversification into commercial agricultural production, which can influence factor productivity and the efficiency of crop production where smallholders maintain a strong production base in subsistence foods.

Data are used on coffee and food crop production for 18 households in the Benabena district of Eastern Highlands Province to derive technical efficiency indices for each household over two years. A stochastic input distance function approach is used to establish whether diversification economies exist and whether specialisation in coffee, subsistence food or cash food production significantly influences technical efficiency on the sampled smallholdings.

Diversification economies are weakly evident between subsistence food production and both coffee and cash food production, but diseconomies of diversification are discerned between coffee and cash food production. A number of factors are tested for their effects on technical efficiency. Significant technical efficiency gains are made from diversification among broad cropping activities.
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Опубликовано на портале: 12-12-2003
Beatrice I. Conradie, Dana L. Hoag
Durban, 2003
In this paper the incremental values of water are calculated for irrigators in the Fish-Sundays Scheme of South Africa's Eastern Cape province. The socio-political pressure for redistribution of agricultural resources provided the imperative for this study. The model of the Fish-Sundays Scheme reflects a survey of 50 000 ha of fodder and citrus production. It explicitly models the water demand on sixteen typical farms, for five irrigation technologies, six crops and four livestock activities. The existing allocation generates an average value of R0.0423/m3/year, which increases to R0.0681/m3/year if farmer-to-farmer trading is allowed given existing infrastructure. Unrestricted trade raises the average value to R0.0719/m3/year. The marginal cost of additional water in the source basin is R0.05/m3/year for the first 315 million m3 and R1.27/m3/year to extend capacity beyond that.
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Опубликовано на портале: 31-12-2003
Stuart Corbridge
USA: Edward Arnold, 1995, 496 с.
Это сборник - ридер по проблемам экономики развития. В книгу вошли статьи известных экономистов по данной проблематике – А.Франк, А.Эскобар, А.Сен, Б.Джонсон, П.Килби, Р.Чэмберс, Р.Вейд и др. Рассматриваемые темы – развитие как концепция, изменение сельского хозяйства и развитие сельской местности, проблемы бедности в развивающихся странах, урбанизация и индустриализация, глобальная политическая экономика, новые пути в изучении экономики развития.

Опубликовано на портале: 29-11-2003
Alessandro Corsi, Silvia Novelli
2002
The goal of this paper is to estimate the maximum price consumers are willing to pay (MPWTP) for organic beef meat. To this purpose, a theoretical and econometric approach is presented, based on the RUM model and on a Contingent Valuation technique.

The results show that consumers’ MPWTP is quite high, thus suggesting that organic beef meat might gain an appreciable market share. This is also an encouraging signal for prospective producers of organic meat, who might compensate the likely increase in production costs with a substantial premium for the new good.
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Опубликовано на портале: 31-12-2003
Alessandro Corsi, Silvia Novelli
Durban, 2003
In this paper, models for estimating the maximum price consumers are willing to pay (MPWTP) for organic beef meat, and the maximum quantity-constrained price (i.e., when buying the same quantity they bought of regular meat) consumers are willing to pay (MQCP), are presented. To this purpose, the relevant theoretical and econometric approaches are presented, based on the RUM model and on a Contingent Valuation technique.
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Опубликовано на портале: 29-11-2003
Stephan Cramon-Taubadel, J. Meyer
2002
In this paper we survey the literature on asymmetric price transmission. This literature contains a substantial share of publications by agricultural economists. After classifying the different types of asymmetric price transmission in section 2, we describe the explanations for asymmetric price transmission that have been proposed in section 3. In section 4 we focus on the econometric techniques used to quantify asymmetry. Section 5 concludes with a discussion of outstanding methodological problems and suggestions for future research. Our main conclusion is that the existing literature is far from being unified or conclusive, and that a great deal of work remains to be done. A wide variety of often conflicting theories of and empirical tests for asymmetry co-exist in the literature. Furthermore, existing tests are not discerning in the sense that they as a rule to do not make it possible to choose between competing explanations for asymmetry on the basis of empirical results. Therefore, after more than three decades of work, a considerable need for further research remains, and it would appear premature to draw far reaching conclusions for theory and policy on the basis of work to date.
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Опубликовано на портале: 31-12-2003
Timothy J. Dalton
Zaragoza, 2003
New crop varieties often have been promoted in developing countries based upon superior yield vis-a-vis locally available varieties. This research presents a hedonic model for upland rice by drawing upon the input characteristics and consumer good characteristics model literature. Model specification tests determine that a combination of production and consumption characteristics best explains the willingness to pay for new upland rice varieties. This non-separable household model specification determined that four traits explain the willingness to pay for new rice varieties: plant cycle length, plant height, grain elongation/swelling and tenderness. Yield was not a significant explanatory variable of the willingness to pay for seed. br>
The implications of this model are two-fold. First, varietal development and promotion must include post-harvest characteristics in addition to production traits when determining which varieties to promote for official release. Secondly, non- yield production characteristics such as plant height and cycle length are significant factors in producers_ assessments of the value of a new variety. Overall, this paper provides an alternative explanation for limited adoption of modern upland rice varieties in West Africa: varietal evaluation programs have focused too narrowly on yield evaluation and have not promoted varieties with superior non-yield characteristics than locally available varieties.
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Опубликовано на портале: 28-11-2003
Sami Daniel, Maureen Kilkenny
2002
This article considers the impacts of (de)coupled farm sector support on the locations of farming and agro-industrial activity. An economic geography model is developed which has two types of regions, one with extensive agricultural production (rural), the other with intensive farming that is more densely populated (urban). The farm and agro-industrial sectors are vertically linked. A service sector that is not directly linked to either basic industry is also explicit. We show that coupled and decoupled subsidies affect the spatial distribution of farming, industry, and service sector activity. Support that is provided to all farmers regardless of crop, thus semi-decoupled, increases spatial agglomeration. Support targeted to farmers of particular crops, especially rural comparative advantage crops, favors increased farming in rural areas but spatial agglomeration of non-farm activity still occurs. This latter targeting approach is used in the European Union.
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