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Всего публикаций в данном разделе: 32

Авторы:
все А Б В Г Д Е ЖЗ И ЙК Л М Н О П Р С Т У Ф Х ЦЧ Ш ЩЭЮЯ
A B C D E F G H I J K L M N O P QR S T U V WX Y Z
 
Названия:
А БВ Г Д ЕЖЗ И ЙК ЛМ НО П Р С Т У ФХЦ Ч ШЩЭ ЮЯ
1 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
Jens-Peter Loy, Christoph Weiss
2002
Only a few studies have analysed staggering and synchronisation in pricing behaviour of multi-product firms. These studies used low-frequency data in an environment of high rates of inflation. This paper investigates staggering and synchronisation of weekly prices for ten food products in 131 grocery stores in Germany over the period from May 1995 to December 2000 (296 weeks). Different forms of staggering and synchronisation (across-store synchronisation, within type-of-store synchronisation, within retailer synchronisation or across-product synchronisation) have been analysed. None of these forms of synchronisation is supported empirically however. In contrast, perfect staggering can only be rejected in very few cases.
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Опубликовано на портале: 30-11-2003
Stephen G. Mbogoh, Florence M. Wambugu, Sam Wakhusama
2003
This article is based on a socio-economic impact study of the introduction and adoption of tissue-culture (tc) technology in banana production in Kenya. It attempts to demonstrate that a prudent introduction and promotion of a new biotechnological innovation in farming can make a positive contribution to the socio- economic status of resource poor farmers in a developing country, such as Kenya. Adoption of tc technology in banana production in Kenya is considered a good example of biotechnological applications in agriculture. Hence the article hopes to make a contribution to recent debates at international levels as to whether biotechnology can make a difference in uplifting the living standards of people in the third world (Qaim, 1999; Graff, et al 2002; Qaim, et al 2002) by showing that it actually does so, using experiences from Kenya. The study utilizes both primary and secondary data sources. The results show that tc-banana production is relatively more capital intensive than non-tc banana production (re: about 70% fixed costs for tc banana versus about 49% fixed costs for non-tc banana). However, tc-banana production is found to offer relatively much higher financial returns than non-tc banana production. The high profitability of tc-banana production relative to traditional (non-tc) banana production and other farm enterprises in the pilot tc-banana project area in Kenya demonstrates the importance of biotechnological applications in rural development and shows that biotechnology can make a difference in uplifting the living standards of people in the third world. Therefore, efforts to promote tc-banana production in Kenya are justifiable from both food security and economic criteria.
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Опубликовано на портале: 24-12-2003
Caroline Saunders, Anita Wreford
Durban, 2003
This paper focuses on the impact of mitigating greenhouse gases (GHG) on agricultural trade. In particular, the paper assesses the impact on New Zealand (NZ), which is highly reliant on agricultural trade, with a high percentage of its total GHG emissions are originating in the agricultural sector. The paper also analyses the impact of mitigation strategies in the European Union (EU), which has a low proportion of GHG coming from agriculture, a highly protected agriculture sector, and is a major market and competitor for NZ. Results from a partial equilibrium trade model, the LTEM, show clearly that while these mitigation strategies achieve the goal of GHG reduction, producer returns are also negatively affected. The value of these changes in emissions are then calculated, based on US$15/tonne of carbon dioxide (CO2), and producer returns adjusted for this. Although this value of CO2 goes some way towards offsetting the reduction in producer returns, it would need to be considerably greater in order to provide any significant compensation.
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Опубликовано на портале: 12-12-2003
Eduardo Segarra, Daniel G. de la Torre Ugarte, Jaime Malaga, Gary W. Williams
Durban, 2003
A non-linear optimization model which maximizes total Ecuadorian social welfare, defined as the sum of Consumers’ and producers’ surpluses for the four major crops (corn, bananas, rice and African palm) is developed to evaluate the tradeoff between welfare and environmental degradation in Ecuador. It was found that a total welfare loss of US$122 million (a 11 percent reduction - from US$ 1.112 billion to US$ 989.66 million) would be expected from a 30 percent reduction in the total pesticide load on the environment in the production of the four major crops. The distributional impacts of the welfare loss were found, however, to be significantly skewed toward the loss of consumers’ surplus. Specifically, a 30 percent reduction of total pesticide load on the environment would result in a reduction of 3.86 percent of producers’ total surplus while consumers would be expected to loose 19.46 percent of their total surplus.
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Опубликовано на портале: 12-12-2003
Steven J. Staal, Dannie Romney, Isabelle Baltenweck, Michael Waithaka
Durban, 2003
Although soil fertility is recognized as a primary constraint to agricultural production in developing countries, use of fertilizer in Sub-Saharan Africa is declining. Smallholder farmers still rely heavily on livestock manure for soil fertility management. To explore the determinants of soil fertility management practices, including both the use of cattle manure and inorganic fertilizer, data are used from a sample of 3,330 geo-referenced farm households across Central and Western Kenya. A bivariate probit model is applied to jointly examine the use of the two technologies. Particular attention is given to measures of location related to market access and agroclimate, which in the adoption literature have typically been addressed using crude proxies. To avoid such proxies, GIS-derived variables are integrated into the household decision model. Their use also allows the spatial prediction of uptake based on parameter estimates. The results show clearly the derived-demand nature of soil fertility services, based on markets for farm outputs. They also illustrate that supply of manure for soil fertility amendments is conditioned by demand for livestock products, especially milk. The integration of GIS-derived variables is shown to better estimate the effects of location than the usual measures employed, and offers scope to wider use in technology adoption research.
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Опубликовано на портале: 29-03-2005
Klaus Wagner
2004
The evaluation of the effects of different measures of the Austrian Agri-Environmental Programme (ÖPUL) on groundwater has to take into consideration various different dimensions of the analysis process. To begin with, there are EU guidelines for the evaluation that lay down questions, criteria and indicators that have to be answered. A second dimension of the evaluation process refers to the level of the different measures. Here we are dealing with single measures, bundles of measures for a specific objective and voluntary or obligatory combinations of measures. In addition, we have to consider that the measures concerning groundwater protection can have effects in a strong or weak, direct or indirect manner, in a selective or more extensive way. The time-related aspect of the effects is of enormous importance, not only in connection with the different programme variants (ÖPUL 95, ÖPUL 98 and ÖPUL 2000) but also in connection with the short-term or long-term effects of measures, depending also on local and regional characteristics. Of great importance is the spatial component in the analyses. In Austria, we have pore-groundwater regions where programmes for measuring the groundwater quality have been installed for many years. Of equal interest is the development of the groundwater quality in ÖPUL testing areas because there is detailed information available about the agricultural structures and the acceptance of ÖPUL measures. Finally, we have to observe the particular groundwater measure project regions, where a variety of special groundwater measures is available to farmers. These different types of regions frequently overlap each other but not always. Accordingly, the evaluation process is a multidimensional task that has to describe the relevance and the acceptance of the measures along with their potential and actual effects.
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Опубликовано на портале: 31-12-2003
Edilegnaw Wale, Detlef Virchow
Durban, 2003
Crop genetic resources are the building blocks of sustainable agricultural development due to their relevance not only as inputs for variety development but also as indigenous crop insurance mechanisms through traditional variety portfolio management. Their continuous survival is, however, threatened by natural and human driven factors. This threat has induced the need for designing conservation measures. Among the in situ and ex situ conservation options available to conserve crop genetic resources, on-farm conservation has recently attracted enormous attention. To make this option operational, placing incentives (that link conservation with utilization) and removal of perverse incentives are believed to be crucial so that landraces of no immediate interest to farmers can be conserved.

However, before designing sound incentives and/or removing perverse incentives, we have to understand farmers. motives for managing a portfolio of traditional varieties.

To address our objective, we have adopted a utility based model that considers on-farm diversity as a positive externality of farmers. livelihood decisions. Accordingly, on-farm diversity is considered as the derived outcome of farmers. revealed preferences subject to their concerns and constraints. To empirically test the relationships, a Poisson regression model is estimated using rural household survey data collected from 198 sorghum growing farmers in East Ethiopia. The results have shown the most important diversity promoting factors and those factors detaching the link between farmers’ ‘survival first’ motives and their spillover effects on sorghum diversity. Based on the results, the paper concludes outlining the policy implications of the findings.
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Опубликовано на портале: 24-12-2003
Katinka Weinberger
Durban, 2003
Micronutrient malnutrition, particularly of iron, is widespread on the South Asian subcontinent and economic losses due to reduced productivity of afflicted population groups are believed to be substantial.

This paper examines the impact of micronutrient intake on productivity of household engaged in agricultural labor in India by applying a two-stage least squares (2SLS) estimation technique. The micronutrient under investigation is iron. The results indicate that productivity, measured in wages is indeed affected through insufficient intake, and that wages would on average be 5 to 17.3 percent higher, if households would achieve recommended intake levels of the micronutrient discussed here. The results demonstrate that policy interventions that aim at enhancing micronutrient intake can be regarded as investments in improved productivity and higher household incomes. Enhancing micronutrient intake will contribute significantly to overall economic growth and development.
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Опубликовано на портале: 29-11-2003
Christoph Weiss, Wolfgang Briglauer
2002
This paper examines the impact of various farm and household characteristics (such as farm size, the off-farm employment status, the farm operator's age and schooling and the number of family members) on the level as well as the dynamics of on-farm diversification. Using linked census data for Upper-Austria from 1980, 1985 and 1990 we provide evidence that smaller farms are more specialised and also tend to increase the degree of specialisation over time more quickly than large farms. A significantly lower degree of diversification (higher degree of specialisation) as well as a stronger reduction in diversification over time is also reported for businesses operated by older, less educated, part-time farm operators. The analysis of diversification dynamics also suggests that (a) farms adjust to changes in their environment by steadily approaching their long-run equilibrium level of diversification ( β-convergence), and (b) the variance of the diversification distribution declines over time (σ-convergence).
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Опубликовано на портале: 29-03-2005
Heinz Wendt, Josef Efken, Inge Uetrecht, Albert Regine
2004
Beside other measures the framework of regulation 1257 (EC)/1999 offered the possibility to implement promotion schemes in food processing and marketing (Art. 25-28). The regulation also claims an evaluation of such measures geared to guidelines formulated through the EUCommission for this purpose. The EU, therefore, has been defined two types of common evaluation questions: chapter specific questions and cross cutting questions. In order to answer these questions a methodological IT-based approach and questionnaire was developed. The methodological approach is presented in detail and also important factors affecting the process of implementation to get sufficient support throughout all stages and authorities involved. First results indicate the intentions of the investors so far and mainly reflect the potential of the database gained through the questionnaire such as detailed breakdown of aims of the supported investments, indicators for competitiveness and a first attempt to get an aggregate measure to assess envisaged aims.
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Опубликовано на портале: 10-01-2003
Jeanette Wetterstom
2002
This paper concerns a certain way of approaching and analysing the practice of management in terms of performance and theatrical events. It discusses a theatrical mode of communication, and aims at exploring the dividing line between public/private within managerial practices and procedures. A manager presents him or her self in public. Here some concepts and insights are brought from the discipline of theatre studies, and analogously, management is regarded as performative acts and as managerial styles are becoming expressed through series of actions. The aim of the paper is first and foremost to discuss a methodological framework for applying theatre studies to management research (for example, costume design, lighting effects, dramaturgy of events), and to discuss some illustrating examples.
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Опубликовано на портале: 24-12-2002
Annick Willem, Marc Buelens
2002
This paper provides a comprehensive review of the literature on firm specific characteristics influencing knowledge sharing. According to the first attempts to build a knowledge theory of the firm, the firm is best fit to exploit knowledge (Conner & Prahalad, 1996; Jensen & Meckling, 1992; Kogut & Zander, 1993). Despite this fact, companies are not enough capturing value from their knowledge due to the nature of knowledge (Teece, 1998). Organisations are however able to develop an identity that facilitates knowledge sharing, but such identity causes unlearning problems. In two case studies, the attitudes towards knowledge sharing were in dept analysed. The cases confirmed the importance of an identity to build trust and to stimulate informal knowledge sharing.
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Опубликовано на портале: 05-01-2003
Andrew B. Williams, Xudong Zhang
2003
This paper examines the underlying nature of production development, its relationship to industry & markets within China, & its implications for Western collaboration. A substantive literature review is supported by a case illustration, selected from a random sample of low technology manufacturing companies.
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Опубликовано на портале: 28-05-2008
Clare H.H. Winsch, John F. Bothams
2001
Environmental scanning is an activity of gathering and interpretation of information for the benefit of the organisation. In this paper, briefly described common attributes and methods of environmental scanning, and also introduced a model that enables thinking in a novel and useful way.
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Опубликовано на портале: 24-12-2003
Tassew Woldehanna
Durban, 2003
The impact of education on farmers. choice of activities and household welfare are modelled and estimated using farm household data for rural Ethiopia. We find that education has significant effects on household welfare. Schooling increases the adoption of new technologies and facilitates entry into highly profitable farm and non-farm activities, all of which may increase welfare and help farm households escape out of income poverty. An additional year of schooling in a household increases the welfare by 8.5 Percent. These findings provide a rationale to governments and donor organisations to include the expansion of rural schooling (through encouragement of parents to send their children to school) in their policy reform as a means of reducing material deprivation.
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