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Всего публикаций в данном разделе: 32

Авторы:
все 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 PQ R S T U V W X Y Z
 
Названия:
А БВ Г Д ЕЖЗ ИЙК 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: 29-11-2003
Christos Pantzios, Stelios Rozakis, Vangelis Tzouvelekas
2002
Utilizing the stochastic frontier approach, this paper estimates output and input-oriented technical and scale efficiency levels for a sample of cotton-growing farms in Thessaly, Greece. The empirical results suggest that Greek cotton farm operations are technically and scale inefficient. There is a considerable scope for improvement in resource use and thereby in farm income of cotton farms; Greek cotton farmers could reduce production costs by 20.4%, making more efficient utilization of the existing production technology. Factors responsible for the technical efficiency differentials observed among cotton-growers include the farmer’s age and education as well as the farm’s land fragmentation and output specialization.
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Опубликовано на портале: 12-12-2003
John Pender, Ephraim Nkonya, Pamela Jagger, Dick Sserunkuuma, Henry Ssali
Durban, 2003
This paper estimates a structural econometric model of household decisions regarding income strategies, participation in programs and organizations, crop choices, land management, and labor use, and their implications for agricultural production and land degradation; based upon a survey of over 450 households and their farm plots in Uganda. The results generally support the Boserupian model of population-induced agricultural intensification, but do not support the .more people-less erosion. hypothesis, with population pressure found to contribute to erosion in the densely populated highlands. Agricultural technical assistance programs have location-specific impacts on agricultural production and land degradation, contributing to higher value of crop production in the lowlands, but to soil erosion in the highlands. By contrast, NGO programs focusing on agriculture and environment are helping to reduce erosion, but have mixed impacts on production. We find little evidence of impact of access to markets, roads and credit, land tenure or title on agricultural intensification and crop production, though road access appears to contribute to land degradation in the highlands. Education increases household incomes, but also reduces crop production in the lowlands. We do not find evidence of a poverty-land degradation trap, while poverty has mixed impacts on agricultural production: smaller farms obtain higher crop production per hectare, while households with fewer livestock have crop production. These findings suggest that development of factor markets can improve agricultural efficiency. Several other factors that contribute to increased value of crop production, without significant impacts on land degradation, include specialized crop production, livestock and nonfarm income strategies, and irrigation. In general, the results imply that the strategies to increase agricultural production and reduce land degradation must be location-specific, and that there are few .win-win. opportunities to simultaneously increase production and reduce land degradation.
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Опубликовано на портале: 29-11-2003
Guirao Perez, Cano Fernandez, Lopez M.I. Yurda, Rodriguez Donate
2002
In this paper we measure the impact of an individual’s socioeconomic conditions on the decision to consume wine in a traditionally wine-producing area. Based on the data obtained in an exhaustive survey on wine consumption and through discrete choice models, we assess the changes which come about in the decisions to consume the different types of wine under consideration, and we obtain the most relevant distinctive and differentiated characteristics for each one of them.
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Опубликовано на портале: 04-01-2004
E. Wesley Peterson
Iowa: Blackwell Publishing Company, 2001, 416 с.
Учебник по анализу политики в области сельского хозяйства, природных ресурсов и окружающей среды предназначен для студентов последнего года обучения в бакалавриате и начального уровня обучения в магистратуре. Студентам предлагается система знаний по анализу политики в данных областях, описываются аналитические методы для оценки эффекта от политики (метод выгод и издержек, частичного равновесия, моделирование всей экономики) с примерами из практики, рассматривается международный аспект.
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Опубликовано на портале: 29-11-2003
Martin Petrick
2002
The objective of this paper is to empirically detect credit rationing of Polish farms. Based on cross-sectional survey data and motivated by a microeconomic farm household model, this effort is pursued by a methodology consisting of three interrelated steps. These steps include the analysis of qualitative survey data regarding farmers’ experience with bank credit, based on this an econometric estimation of internal shadow prices of credit for the credit constrained sub-sample of respondents, and finally an investigation of interdependencies between determinants of consumption and production that should be influenced by the presence of a binding credit constraint. The results of the empirical analysis consistently suggest that among the observed randomly selected Polish farms more than 40 percent of borrowers experience pronounced credit rationing by rural banks. These farms display internal shadow prices of the credit constraint of on average 190 percent net of principal. Shadow prices are significantly different from individual effective interest rates for credit that account for loan specific transaction costs. In the group of credit constrained farms, household characteristics could be proven to have a significant effect on output supply. This is evidence for a violation of separability between production and consumption decisions and thus lends empirical support to the existence of a binding credit constraint. Overall, credit constrained farm households own less and rent more land than the average, operate with a high capital intensity with regard to land, tend to have a poor credit history, and engage intensively in intra-village conversation. Generous government support via interest rate subsidisation apparently contributed little to alleviate credit rationing of farms in Poland.
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Опубликовано на портале: 29-11-2003
Agata Pieniadz, Heinrich Hockmann
2002
This study deals with horizontal product differentiation in the Polish pig meat market. Hypothesis among firms behaviour are derived from an illustrative model and tested in an empirical analysis using data from 1991-1998. The empirical analysis suggest that product differentiation is a relevant phenomenon in the polish pig meat markets. In addition we found that costs and competitions are important factors influencing price variation. However, further influences like price discrimination and vertical product differentiation are also important determinants for product price variations.
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Опубликовано на портале: 29-11-2003
Kyosti Pietola, Minna Vare, Alfons Oude Lansink
2002
This paper estimates farmer decisions between three discrete occupational choices: exit and close down the farming operation (1), exit and transfer the farm to a new entrant (2), or continue farming and retain the option to exit later on (3). The farmer optimisation problem is formulated as a recursive optimal stopping problem. The unknown parameters are first estimated by a switching-type, reduced form Probit models and, then by the Simulated maximum likelihood (SML) method, controlling for serial correlation in the errors. Serial correlation in the errors is controlled for by the Geweke-Hajivassiliou-Keane (GHK) simulation technique. The results suggest that the timing and the type of farmer exit decisions respond elastically to farmer characteristics, farm characteristics, and economic environment. Early retirement programs and the level of farmer retirement benefits are predicted to play a key role in steering structural development and enhancing family farms in the Nordic agricultural sectors.
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Опубликовано на портале: 04-01-2004
Witold-Roger Poganietz
Boston: Kluwer Academic Publishers, 2000, 129-153 с.
Since the opening of the Russian economy in January 1992, exchange rate policy has become an important instrument in the reform and stabilization process. After the real effective exchange rate of the agriculture and food sector had risen continuously since 1992, the introduction of the target system in June 1995 supported its stabilization from 1994.

The changed exchange rate policy leading to low inflation resulted in high real interest rates, deteriorating potential domestic investment possibilities. However, the breakdown of the foreign exchange market and the financial system in summer 1998 has revealed that establishing a target system is no panacea for economic problems, even though it is a credible nominal anchor in a comprehensive reform package.
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Опубликовано на портале: 29-11-2003
Arsen Poghosyan, John P. Nichols, Rodolfo M. Nayga
2002
This study examines consumer willingness to pay for irradiated beef products. About 58 percent of the respondents are willing to pay a premium for irradiated beef. An ordered probit with sample selection model was estimated. Standard errors of the marginal effects of the ordered probit model were estimated using the bootstrap method. Our findings suggest that females and those who think that improper handling contributes to food poisoning are more likely to pay a premium of 50 cents per pound of irradiated beef than others. Those who trust the irradiation technology are also more likely to pay a premium of between 5 to 25 cents per pound for irradiated beef. Supply chain implications are discussed.
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Опубликовано на портале: 29-11-2003
Jan Pokrivcak
2002
I develop a two-stage political economy model that explicitly models the complexity of decision-making in the European Union on the Common Agricultural Policy, and I derive how the institutional design affects the outcome and the influence of the various agents involved, and the likelihood of political stalemate.
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Опубликовано на портале: 29-11-2003
Albino Prada, Jose Manuel Gonzalez, Maria Xose Vazquez, Mario Solino
2002
This article presents results from an experiment into attribute perception and relevant levels for management of woodland and mountain areas typical of the Iberian Peninsula's Atlantic region. The aim, which the authors argue has been robustly reached, was to identify those aspects of forestry policy clearly perceived by citizens. This is useful for defining enlargement of areas protected under Natura 2000 Network. Results show clear preference for an increase in woodland to over half the current surface area, with replanting of traditional trees, in woodlands of low density and trees of different age and, preferably in irregular shaped plots.
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Опубликовано на портале: 30-12-2003
Nataliya Pustovit, P. Michael Schmitz
Durban, 2003
Agricultural protection in industrialized countries and price distortions in developing countries are accused to hamper economic and agricultural development and are partly responsible for poverty and hunger in the Third World. A multi-commodity multi-country comparative static trade model is used to simulate the impact of different policy scenarios in this typical second best world for the case of South Africa.

Special emphasis is given to the disincentive effect of production and to endogenous policy responses in South Africa. In conclusion South Africa could benefit a lot by liberalizing trade and agricultural policies world wide, although it is an importer for most of the considered commodities.
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Опубликовано на портале: 30-11-2003
Giovanni Signorello, Gioacchino Pappalardo
2002
In this paper we report on preliminary results of a research aimed to examine the content of farm animal biodiversity conservation actions currently under implementation in the European Union in the framework of EU Agenda 2000. In particular, we surveyed sixty-three Rural Development Plans (RDPs) set up in twelve countries in application of EEC regulations 1257/99 and 1750/99. Our analysis focused on endangered breeds of six major livestock species included in the RDPs. This analysis, which is based on the comparison with the indicator’s status of the DAD-IS FAO database, allowed to identify priorities in conservation efforts in each country, and estimate the level of expected public expenditure needed to ensure the moving of breeds from at-risk (of extinction) status to not-at-risk status over the period 2000-2006.
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Опубликовано на портале: 29-11-2003
Antje Springer, Georgios Papastefanou, Asterios Tsioumanis, Konstadinos Mattas
2002
As biotechnology evolves new methods of genetic engineering are now being applied to the production and processing of foods. This paper is trying to explore the attitudes of the European consumers towards genetic modification of food. Using survey data of the EU member countries the proposed research paper is planned to have a threefold output: 1) providing a comparative ranking of the EU member countries in relation to the prevalence of rejection of genetically modified food, 2) uncovering intra-european differences in genetic food engineering rejection as being based on socio-demographic and informational resp. knowledge based differentials between EU countries and 3) specifying the importance of socio-economic and informational determinants of a potential defender of genetically modified food by estimating the partial effects of age, gender, education, income, family status, size of household, knowledge on genetical food engineering and information use behavior in a multivariate model of the attitudes towards genetically modified food. This causal approach will be followed in selected EU countries representing extreme positions in the EU attitude ranking. By these empirical results the paper is trying to reveal intra-EU differentials of consumer attitudes towards genetically modified food, which is a necessary baseline for adequate and efficient policies in order to satisfy consumer needs for quality and security. The results will also prove helpful to the food industry providing differential information for marketing decisions and focusing adjustments in different EU food markets.
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Опубликовано на портале: 30-11-2003
Colin Thirtle, Lin Lin, Jenifer Piesse
2003
Twenty percent of the world population, or 1.2 billion live on less than $1 per day; 70% of these are rural and 90% in Asia and Sub-Saharan Africa. Research led technological change in agriculture generates sufficient productivity growth to give high rates of return in Africa and Asia and has a substantial impact on poverty, currently reducing this number by 27 million per annum, whereas productivity growth in industry and services has no impact. The per capital cost of poverty reduction by means of agricultural research expenditures in Africa is $144 and in Asia $180, or 50 cents per day, but this is covered by output growth. By contrast, the per capita cost for the richer countries of Latin America is over $11,000.
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