Эксоцман
на главную поиск contacts
Мы не берем все книги по признаку формального соответствия темам. Отбираем лучшее по качеству и релевантности. (подробнее...)
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: 29-11-2003
Monia Ben-Kaabia, Jose Maria Gil, L. Boshnjaku
2002
The analysis of asymmetries in the price transmission mechanism at different levels of the marketing chain provides some interesting information about the degree of competition in vertical related markets. The objective of this paper is to investigate the non-linear adjustments of prices along the lamb sector in Spain. The methodology used is based on the multivariate approach to specify and estimate a Threshold Autoregressive Model. Price relationships at farm, wholesale and retail levels are considered. Results indicate that in the long-run price transmission is perfect and any supply or demand shocks are fully transmitted to all prices in the system. In the shortrun, analyses suggest that the high degree of horizontal concentration among retailers allow them to have market power. Responses to any shock generate an increase of the retail price spread which is more evident when prices show an upward trend.
ресурс содержит прикрепленный файл

Опубликовано на портале: 04-01-2004
Peter Berck, David Bigman
Oxford: Oxford University Press, 1993, 400 с.
Сборник работ по теме продовольственной безопасности в развивающихся странах. Рассматриваются проблемы недоедания, бедности, состояния предложения и спроса на продовольствие, политика государств и проведение альтернативные политических мер на микро- и макро- уровнях.

Опубликовано на портале: 30-11-2003
Ernst Berg
2002
This paper investigates the farm level impacts of multiple peril yield and revenue insurance in an expected value-variance framework. The analysis is conducted using stochastic simulation jointly with numerical optimisation. Simulation is used to compute the means and variances of revenues as affected by the insurance schemes under consideration. In a second step these results are incorporated in a whole-farm programming approach, which optimises a portfolio that consists of crop production and insurance activities. The results of a case study indicate that from the farmer's point of view there is an incentive to buy multiple peril crop insurance, because it significantly reduces the variability of income. The risk reduction through insurance in turn leads to a specialisation of the production program. The farm level benefit of crop insurance strongly depends on the decision maker's degree of risk aversion. Furthermore, risk free parts of the total income reduce the economic attractiveness of insurance schemes. This applies e.g. to the area payments under the European agricultural policy, which therefore limit the potential demand for crop insurance.
ресурс содержит прикрепленный файл

Опубликовано на портале: 28-11-2003
Miriam E. Berges, Karina S. Casellas
2002
The purpose of this paper is to provide some microeconomics tools to discuss and evaluate public policies that imply transfers of income from the public sector to the poor and their impact on their food demand and calories and nutrient intakes. This study is concerned with the differences in subsistence expenditures, own-price elasticities and income elasticities for two households groups segmented by income: those people below the poverty guideline and those above it. The attention of our research is focused on a demand system for all food groups included in a National Consumption Survey and examines the household food consumption behavior by partitioning the sample. A complete system of demand equations, the Linear Expenditure System (LES), has been used due to its relative empirical expediency. Some additional econometric techniques to correct the bias in the parameter estimates were also applied because of the large number of zero observations in the data. Preliminary estimations following the procedure suggested in the Park et al. (1996) paper, gave some results that they were not as good as we expected and we finally use an alternative one based on Shonkwiler and Yen (1999).
ресурс содержит прикрепленный файл

Опубликовано на портале: 13-01-2004
Daniel Berkowitz, David N. DeJong
Berlin, 2000
In previous work BERKOWITZ and DEJONG, used regional commodity-price data covering the period 1993-96 to document the existence of an internal economic border that divides Russia into two distinct economic regions: the ‘Red Belt’ and the ‘rest of Russia’. The Red Belt represents a group of regions that have broadly resisted the implementation of federally initiated market reforms. Here, we extend this work by quantifying two economic implications of this internal border. First, we show that the Red-Belt border has limited the transmission of price signals to regions within the Red Belt. Second, we show that regions within the Red Belt have experienced extremely poor growth performances relative to Russia as a whole.
ресурс содержит прикрепленный файл

Опубликовано на портале: 29-11-2003
Carlo Bernini Carri, Maria Sassi
2002
The paper explores the phenomenon of agricultural convergence on regional base within the EU economic cohesion that has always been and still remains one of the mainstay of the EU building process (EU, 1997). A crucial issue is the theoretical and empirical testing of a catching up process, that is a faster growth of the poor countries (regions) than that of the rich ones. The literature on this topic has strengthened recently, but it is mainly referred to economic convergence undermining the importance of the process in the agricultural sector. The relevance mainly refers to the role of the Common Agricultural Policy (CAP). It is the only European policy thought and managed at overnational level with the specific object to overcome the deep agricultural structural disparities within the Member States. This process has been considered fundamental to reach the agricultural and thus economic European integration. Moreover, the interrelationship (if any) between agricultural and economic convergence is of potential interest given that the nature of structural change within agriculture is likely to shaped by broader economic conditions (especially the state of local labour markets).

Thus, the paper first explores the process of agricultural and economic convergence using EU data on real Gross Domestic Product per capita and real Gross Agricultural Value Added per agricultural Work Unit at the level of NUTS 2 regions for 1982,1986 and 1994. Then, it analyses whether: - The intensity of the convergence process in the agricultural sector has been strong enough to promote a decrease in the gap between the agricultural and the economic performance; - The agricultural and economic process of convergence are related on territorial base. Policy implications are not analysed because data at regional level are not available. In literature, the results of testing convergence hypothesis are mixed and strongly dependent on the methodologies applied, the level of analysis, and the explanatory variables adopted (Bernini Carri, Sassi, 1998).
ресурс содержит прикрепленный файл

Опубликовано на портале: 07-10-2008
Steven T. Berry, Peter C. Reiss
Amsterdam: Elsevier Science, 2007
This chapter surveys empirical models of market structure. We pay particular attention to equilibrium models that interpret cross-sectional variation in the number of firms or firm turnover rates. We begin by discussing what economists can in principle learn from models with homogeneous potential entrants. We then turn to models with heterogeneous firms. In the process, we review applications that analyze market structure in airline, retail, professional, auction, lodging, and broadcasting markets. We conclude with a summary of more recent models that incorporate incomplete information, “set identified” parameters, and dynamics.
ресурс содержит гиперссылку на сайт, на котором можно найти дополнительную информацию

Опубликовано на портале: 29-11-2003
Dirk J. Bezemer
2002
The replacement of wage-labour farms by family farms in Central and Eastern Europe during the transformation has been more limited than was initially expected. In this paper a formal framework is developed in order to analyse the behaviour of family farms and socialist-style farms in the presence of risk, given the typical post-socialist environment. Management incentives, ownership structure, lump-sum transfers and consumption choices are shown to have the potential to limit the size of family farms relative to socialist-style farms. The hypotheses are tested with survey data collected by the author in the Czech Republic.
ресурс содержит прикрепленный файл

Опубликовано на портале: 30-11-2003
Maria Bielza, Alberto Garrido, Jose M. Sumpsi
2002
Various forms of revenue insurance have been applied in Canada and in the US with relative success. In this paper different combinations of traditional agricultural policies and revenue and yield insurance are analysed for the Spanish olive oil sector. Taking a database containing about half million Spanish olive growers during 8 campaigns, five possible policies are studied and the results are examined according to different criteria including average revenue and its variability, growers utility gains, taxpayers cost and the transfer efficiency of support. The policies analysed are:
(1) non-intervention;
(2) the policy currently in force in Spain that combines a production aid with a yield insurance;
(3) a revenue insurance, only;
(4) revenue insurance combined with a production aid; and
(5) an aid per tree in combination with revenue insurance.

The methodology is based on Monte-Carlo simulations performed on about 100 groups of growers that have been grouped according to their expected yields and variability. Assuming and estimating olive oil price and yields correlations for each group of growers, the analysis allows for consistent policy comparisons at a very disaggregate level. Using the results for all analysed groups, policies are ranked based on the above criteria at the provincial and national levels. Results show that the current regime of EU production aids of olive oil eliminates the advantage of extending the current yield insurance to a revenue insurance. It is also shown that the level of support delivered by production aids cannot be reached with revenue insurance even with completely subsidised premiums. Finally, it is shown that the policy that combines tree aids with revenue insurance exhibits good results for all examining criteria.
ресурс содержит прикрепленный файл

Опубликовано на портале: 04-01-2004
Julian Binfield, Gary Adams, Robert Young, Patrick Westhoff
Zaragoza, 2002
Most of the large scale modeling systems used in the analysis of agricultural policies produce deterministic projections. In reality, however, the agricultural sector is subject to a high degree of uncertainty as a result of fluctuations in exogenous factors such as the weather or macroeconomic variation. A stochastic approach can provide additional information to policy makers regarding the implications of this uncertainty, through the use of stochastically generated projections.

This paper also shows how deterministic analysis may result in systematic errors in the projection of some variables. As an applied example, the FAPRI model of the US agricultural sector is simulated stochastically to analyse the impact of proposals for the new US farm bill.
ресурс содержит прикрепленный файл

Опубликовано на портале: 24-12-2003
Julian Binfield, Patrick Westhoff, Robert Young
Durban, 2003
In the Mid-Term Review (MTR), the European Commission proposed a series of changes to the Common Agricultural Policy (CAP). An important part of these changes was significant decoupling of support payments from production. In this paper, a partial equilibrium model of the EU agricultural sector is used to estimate the potential impacts of the MTR proposals on EU and world agricultural markets over the period 2004-2009. Effects of the MTR proposals are evaluated by comparing estimated outcomes under the proposals to those that would result under a current-policy baseline. The changes that are made in the MTR have the effect of reducing the production of the major commodities by varying amounts based on the importance of payments in production and the degree to which these payments are currently production inducing. For example, total area harvested for nine major crops falls by about 2 percent under the MTR proposals. In the livestock sector, however, where current payments are strongly coupled and form a large part of producers’ income, the reductions in production are projected to be more significant.
ресурс содержит прикрепленный файл

Опубликовано на портале: 04-01-2004
Hans Binswanger, Ernst Lutz
Berlin, 2000
Rural growth is necessary for reducing rural poverty. But rural regions cannot generate sustained growth in agricultural demand unless they trade with cities, neighboring countries, and the rest of the world. That is the first problem. The second is that world trade in agricultural and agro-industrial products has grown slower than general trade—and developing countries have not been able to capture as large a share of trade growth in agriculture as in industry. This has constrained agricultural growth and diversification in the developing world.

We argue here that developing countries will have to continue their agricultural policy reforms. But the main focus has to be on the constraints on agricultural trade imposed by developed countries—and on the prospects for reducing them in the current round of WTO negotiations. Export subsidies should be outlawed. Domestic producer subsidies reduced. Access under tariff quotas increased. Tariff escalation on processed agricultural products removed. And the level and the dispersion of bound tariffs on agricultural imports reduced.
ресурс содержит прикрепленный файл

Опубликовано на портале: 31-12-2003
Elizabeth Bird, Gordon Bultena, John Gardner
Iowa: Blackwell Publishing Company, 1995, 300 с.
Сборник работ. Авторы пытаются найти ответы на вопросы - как влияет сельское хозяйство на окружающую среду, семьи фермеров, быт людей в сельской местности, а также какие методы ведения сельского хозяйства являются наиболее приемлемыми для окружающей среды, не нанося ущерба и одновременно, открывая дорогу для появления новых фермеров и оживляя развитие сельской местности.

Опубликовано на портале: 30-11-2003
Regina Birner
2003
Participatory approaches in natural resource management are increasingly being criticized for their tendency to neglect power relations and conflicts of interests. Negotiation approaches have been proposed as a strategy to overcome such shortcomings. The increasing practical relevance of negotiation in natural resource management requires the development of theoretical concepts for analyzing the nature and outcome of such negotiation processes. Using the case of negotiations concerning crop-livestock conflicts in Sri Lanka as an empirical example, this paper applies the concept of political capital in combination with game theoretical modeling for an analysis of negotiation processes in natural resource management. An extended form game is used to examine the incentive structure of the resource users and the political decision-makers involved in the negotiation process. The pay-off of the resource users is measured in economic terms, while the pay-off of the political decision-makers is expressed in terms of political capital. The modeling exercise shows how the incentives of the resource users and the politicians depend on the probability that the public administration enforces a negotiated outcome. The paper discusses potential extensions of the model and concludes that the concept of political capital, in combination with game theoretical modeling, provides a useful tool for the analysis of negotiation approaches in natural resource management.
ресурс содержит прикрепленный файл

Опубликовано на портале: 29-11-2003
Markus Bjerre, Jorgen Dejgaard Jensen
2002
The paper deals with problems concerning the current sugar policy within the Common Agricultural Policy, especially the efficiency losses due to the combination of high prices and quota on subsidised sugar production. Based on a simple econometric model, the total economic costs of the current policy setting, compared with an unregulated setting, are estimated to be in the area of 20 per cent of the total sugar production, valued at world market prices. Of these costs, some 10 per cent are due to inefficiency in the crop production, as the opportunity costs of land are not taken into account because the sugar price support within the quota overrules these opportunity costs. However, according to the estimates obtained in the present study, the main economic gains by reducing the internal prices are to be found in terms of reduced consumer costs rather than improved efficiency in land use.
ресурс содержит прикрепленный файл