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Всего публикаций в данном разделе: 338

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 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: 04-01-2004
Julian M. Alston, Philip G. Pardey
Berlin, 2000
Estimated rates of return to research are distorted by problems of attributing the credit for particular research results, or for particular research-induced productivity increases, to research expenditures undertaken at different times, in different places, and by different agencies. A comprehensive assessment of the evidence from past economic evaluations of the returns to agricultural R&D indicates that studies generally report high rates of return, with enormous variation among studies, but that much of this evidence has been tainted by inadequate attention to attribution problems. br>
This paper raises these concerns in a general way, and illustrates their importance with reference to two particular types of attribution problem. First, we consider the problem of accounting for locational spillovers in attributing varietal improvement technology among research performers, using U.S. wheat varieties as an example. Second, we consider the temporal aspects of the attribution problem using the specification of research lags in econometric models to illustrate the problem of attributing aggregate productivity gains to research expenditures at different times.
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Опубликовано на портале: 30-11-2003
Oliveira Amimo, Donald W. Larson, Mauricio Bittencourt, Douglas H. Graham
2003
Many policy makers and businesses erroneously believe that rural populations, particularly in Africa, have no margin for savings over consumption needs. This study examines the potential for financial savings in rural Mozambican households by looking at the determinants of savings behavior. An econometric model for a household.s saving behavior was estimated using data from 113 rural households from Nampula province in Mozambique. Results indicate that income, physical wealth, household size, and years of schooling affect a household.s savings behavior. The study also finds that Mozambican rural households use their own grassroots associations for many financial services due to the lack of access to formal financial intermediaries.
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Опубликовано на портале: 04-01-2004
Kym Anderson, Rodney Tyers
Michigan: University of Michigan Press, 1992
Авторы книги исследуют эффект от либерализации мировой торговли продукцией сельского хозяйства. Рассматривается современное состояние торговли сельскохозяйственной продукцией и проблемы либерализации, изменение структуры мировых продовольственных рынков, политика протекционизма сельского хозяйства развитыми странами, моделируется ситуация либерализации торговли, рассчитываются потери и выгоды от данной политики.

Опубликовано на портале: 04-01-2004
Sven Anders, Johannes Harshce, Roland Herrmann
Zaragoza, 2002
The objective of this paper is twofold. First, we intend to show how regional impacts of the CAP can be measured in terms of the price and revenue impacts. Second, new empirical evidence will be presented by use of the proposed method for regions in Germany. Data utilized are available over time (1986-99) and across commodities, so that regional support due to the CAP can be aggregated from support for the individual commodities.
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Опубликовано на портале: 04-01-2004
Ред.: John M. Antle, Vincent H. Smith
Oxford: Oxford University Press, 2000, 300 с.
В книге анализируется современная ситуация на рынке пшеницы, основные страны экспортёры и импортёры, даётся прогноз развития международного рынка. Авторы уделяют внимание таким странам, как Россия и Китай, чья роль на мировом рынке пшеницы значительно изменилась за последнее время. Анализируются и стратегии традиционных экспортёров пшеницы на мировом рынке - США, ЕС, Канады, Аргентины и Австралии. Поведение и развитие рынка пшеницы рассматривается через призму международных торговых соглашений. Под редакцией Д.Антл и В.Смит.

Опубликовано на портале: 30-11-2003
Jesus Anton, Chantal Le Mouel
2003
Analytical results in the literature suggest that counter-cyclical payments create risk-related incentives to produce even if they were "decoupled" under certainty (Hennessy, 1998). This paper develops a framework to assess the risk-related incentives to produce created by commodity programmes like the loan deficiency payments and the Counter-Cyclical Payments (CCP) in the FSRI Act. Because CCP are paid based on fixed production quantities they have a weaker risk-reducing impact than loan deficiency payments. The latter have a direct impact through the variance of the producer price distributions, while the impact of CCP is due only to the covariance between the CCP and the producer price distributions. The methodology developed by Chavas and Holt (1990) is applied to calculate the appropriate variance-covariance matrix of the truncated producer price distributions created by the FSRI in 2002. Risk premiums are computed showing that the risk related incentives created by CCP are significant and they do not disappear for levels of production that are larger than the base production on which they are paid.
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Опубликовано на портале: 31-12-2003
Shihomi Ara
Zaragoza, 2003
Organic rice production in the Philippines has been growing rapidly since 1986. We conducted a conjoint analysis to determine consumers. preferences of multiple attributes of organic rice in Manila and Naga city. Attributes included were price, reduced health risk level, environmental quality, eating quality, type of organic certification and a fair trade factor. In both cities, health risk was the primary concern. Consumers in Manila revealed organic certification to be the second most important factor while improvement of the farm environment was the second highest factor in Naga city.

We found that consumers who live further from the production site have a higher demand for certification. On the other hand, consumers who live close to the farms care more about the farm environment and have a lower demand for certification.
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Опубликовано на портале: 09-12-2003
Mark Armstrong, Simon G.B. Cowan, John Vickers
Massachusetts: MIT Press, 1994, 406 с.
Regulatory reform had its beginnings in the United States in the 1970s, and today it is taking place around the globe. One of the central questions for industrial policy is how to regulate firms with market power. Regulatory Reform tackles this important policy issue in two parts: it describes an analytical framework for studying the main issues in regulatory reform, and then applies the analysis to the British experience in four utility industries - telecommunications, gas, electricity, and water supply. Britain's utility industries, state-owned monopolies just ten years ago, offer a dramatic example of comprehensive reforms with parallels elsewhere: industries have been restructured, markets have been liberalized, and new regulatory methods and institutions have been created. The authors focus on common policy questions that arise in each industry while taking into account the considerable diversity between the industries and the different reform policies adopted. The analysis and experience in Britain's utility industries also provides a rich variety of issues concerning monopolistic and anticompetitive practices that are of interest for competition policy in general.
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Опубликовано на портале: 30-11-2003
Channing Arndt, Peter Wobst
2003
We examine the performance of the primary school education system in Tanzania over the 1990s - a decade characterized by substantial AIDS deaths. Given the relatively robust correlation between educational attainment and productivity established in the literature in both agricultural and non-agricultural sectors, human capital accumulation through education forms a major component of development strategy. At the same time, AIDS poses clear threats to the goal of human capital accumulation through education. To assess performance of the primary school system, we estimate non-stationary education transition matrices using a minimum cross entropy approach at the national, sub-national, and regional levels for girls, boys, and all students. Results indicate a deterioration in primary school performance using enrollments in grade 7, the final year of primary school, as a metric. This deterioration in performance occurred despite increased real resource allocations to the public education system and positive, if only tepid, overall economic growth trends. We conclude that the HIV/AIDS pandemic has quite likely slowed human capital accumulation in Tanzania.
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Опубликовано на портале: 30-11-2003
Manuel Arriaza, Jose A. Gomez-Limon
2002
This study compares the predictive performance of several mathematical programming models. Using the cropping patterns, yields and crop gross margins of eighteen farms over a period of five years we compare the models’ optimum solutions with observed crop distributions after the Reform of the EU Common Agricultural Policy of 1992. The results show that the best prediction corresponds to a model that includes expected profit and a qualitative measure of crop riskiness. The results suggest that, in order to obtain reliable predictions, the modelling of farmers’ responses to policy changes must consider the risk associated with any given cropping pattern. Finally, we test the ability of the proposed model to reproduce the farmers’ observed behaviour with equally good performance under conditions of limited data availability.
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Опубликовано на портале: 12-12-2003
Alastair Bailey, Xavier Irz, Kelvin Balcombe
Durban, 2003
The measurement of the impact of technical change has received significant attention within the economics literature. One popular method of quantifying the impact of technical change is the use of growth accounting index numbers. However, in a recent article Nelson and Pack (1999) criticise the use of such index numbers in situations where technical change is likely to be biased in favour of one or other inputs. In particular they criticise the common approach of applying observed cost shares, as proxies for partial output elasticities, to weight the change in quantities which they claim is only valid under Hicks neutrality. Recent advances in the measurement of product and factor biases of technical change developed by Balcombe et al (2000) provide a relatively straight-forward means of correcting product and factor shares in the face of biased technical progress.

This paper demonstrates the correction of both revenue and cost shares used in the construction of a TFP index for UK agriculture over the period 1953 to 2000 using both revenue and cost function share equations appended with stochastic latent variables to capture the bias effect. Technical progress is shown to be biased between both individual input and output groups. Output and input quantity aggregates are then constructed using both observed and corrected share weights and the resulting TFPs are compared. There does appear to be some significant bias in TFP if the effect of biased technical progress is not taken into account when constructing the weights.
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Опубликовано на портале: 25-12-2003
Kenneth Bailey
Iowa: Blackwell Publishing Company, 1997, 296 с.
Рассматривая всю молочную продуктовую цепочку в США - от молока и йогурта до сыра, масла, мороженого, автор анализирует спрос и предложение на молочные продукты, молочные кооперативы, программы по поддержке цены на молоко и систему государственных закупок, регулирование рынка на местном и региональном уровнях, специфику международной торговли.

Опубликовано на портале: 30-11-2003
Bruno Barbier, Robert R. Hearne, Jose Manuel Gonzalez, Andy Nelson
2003
In Honduras, traditional coffee processing is the cause of two major problems: poor coffee quality and contaminated water. In this paper we present a method that determines the trade-off between economic efficiency and contamination in a Honduran sub-watershed. The method is a bioeconomic model based on mathematical programming that simulates the functioning of the interlinked economic and ecological processes in the sub-watershed. We compare various scenarii where the model is given the possibility of replacing traditional coffee processing plants with a network of improved ecological plants. For different levels of contamination the model determines the optimal location and size of new coffee processing plants along river streams by minimizing transport, variable and fixed costs. The restrictions of the system are the volume of wet coffee to be processed, the available stream water, and in the alternative scenarii, investment capital and contaminant concentration in the river. We apply the method to a typical sub-watershed in the hillsides of western Honduras and show that coffee quality can be improved and contamination can be reduced substantially at a relatively low cost.
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Опубликовано на портале: 04-01-2004
Ред.: Pranab Bardhan
Oxford: Oxford University Press, 1992, 416 с.
These specially commissioned essays apply new analytical methods to study the origins, maintenance, and adaptation of agrarian institutions in a variety of regions and cultures.

Книга представляет собой сборник эссе, написанных ведущими экономистами (Д.Стиглиц, Л.Путтерман, Т.Сринивасан, Х.Бинсвангер, Д.Ньюбери) в области развития институтов в аграрном секторе. Авторами предлагаются методы анализа для изучения причин, поддержки работы и адаптации аграрных институтов применительно к разным регионам и культурам. Под редакцией П. Бардхан. Книга может быть использована при изучении курсов: «Международное сельское хозяйство», «Международное сельскохозяйственное развитие», «Экономика развития», «Институциональная экономика».
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Опубликовано на портале: 30-11-2003
R. Barrena, M. Sanchez, A. Gracia, Jose Maria Gil
2002
Recent food scares in the food market has caused a reduction in consumer’s confidence in the food system that it has induced a significant reduction in consumption in a sector, the beef sector that was already characterized by a saturated trend in quantity terms. In this context, all participants in the beef production system are facing to a greatchallenge, to retrieve consumer’s confidence in the food chain and to mitigate the reduction in beef consumption. The aim of the paper is to analyse the impact of consumer’s confidence in the food system as well as other factors on the explanation of food consumption reduction. A structural modelling approach has been used to analyse factors affecting the reduction in beef consumption in two different regions characterised by different production systems and different marketing strategies (PGI beef label). Results indicate that main factor explaining the reduction in beef consumption is the confidence in the beef and a positive relation has been found. Moreover, confidence in a product is directly related to the perceived quality offered by farmers and other decision makers on the beef chain, and to the consumer involvement with the product. Therefore, the main implication is that participants in the food chain has to develop adequate communication strategies such as quality labelling in order to increase consumers perceive quality because, higher quality perception will recover consumers’ confidence in beef, and therefore, it will mitigate beef consumption reduction.
ресурс содержит прикрепленный файл