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Всего публикаций в данном разделе: 28

Книги

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 NO P QR S T U V W X 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: 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: 05-01-2003
Irma Bogenrieder, Bart Nooteboom
2003
This article investigates what learning groups there are in organizations, other than the familiar communities of practice. It first develops an interdisciplinary theoretical framework for identifying, categorizing and understanding learning groups. For this, it employs a constructivist, interactionist theory of knowledge and learning. It employs elements of transaction cost theory and of social theory of trust. Transaction cost economics neglects learning and trust, but elements of the theory are still useful. The framework is used in an empirical study in a consultancy company, to explore what learning groups there are, and to see if its theory can explain their functioning and their success or failure.
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Опубликовано на портале: 31-12-2003
Peter Bogetoft, Kurt Nielsen
Durban, 2003
This paper discuss the design of multidimensional yardstick based procurement auction. The suggested design combines Data Envelopment Analysis (DEA) based yardstick schemes with the multidimensional score auction. The principal select a single winner to perform a project, characterized by a multidimensional vector. The design is especially useful when there are uncertainty about the underlying common cost structure as well as the principal’s valuation function. Potential applications in natural resource management is provided.
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Опубликовано на портале: 28-11-2003
Maury E. Bredahl, Sjur Spildo Prestegard, Nils Kristian Nersten
2002
The ongoing negotiations in the WTO will most certainly lead to a further liberalization of the global agricultural trade. Related to this, many national governments, including Norway, Switzerland and Japan have placed substantial emphasis on the so-called non-trade concerns. In addition to the production of food and fiber, agriculture also provides or may provide national food security, environmental benefits, and viable rural areas. The term “Multifunctional Agriculture” has been applied to describe these additional functions. In this paper, we will show how the economic concepts of “positive and negative externalities” and “public goods” can be used to analyse non-trade concerns and multifunctionality, especially with reference to agriculture’s impact on the environment. We conclude the paper with suggestions for international trade rules that can allow countries to meet domestic environmental policy objectives in a minimally trade-distorting manner.
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Опубликовано на портале: 24-12-2002
Mike Bresnen, Linda Edelman, Jacky Swan, Stephane Laurent, Harry Scarbrough, Sue Newell
2002
Capturing and diffusing the knowledge generated on projects is highly problematic due to the idiosyncratic, complex and dynamic nature of projects. In particular, the recurrent re-organisation required by projects especially the constant re-formation of project teams militates against the systematic codification of knowledge or its embodiment in the knowledge base of project teams. This paper reports on on-going research in the UK that is designed to explore organisational and other factors inhibiting and enabling project-based learning. This research compares and contrasts project-based learning across a range of industrial sectors (including medical technology, telecommunications, health and public services). It emphasises the inherently social nature of project-based learning and the difficulties this creates for attempts to capture and codify project-based learning.
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Опубликовано на портале: 05-01-2003
Julia Connell, John Nolan
2002
Performance appraisal and managing performance are they one and the same or fundamentally different? The first suggests a reactive stance while the second indicates proactivity. Although effective performance management has been touted as the key lever for change that may boost individual and team accomplishment in organisations, the results will be limited if it is a case of old wine in new bottles. Specifically, the preliminary results of two case studies indicate that performance management systems operate in the same way as old performance appraisals. Some interviewees perceived that knowing how to play the corporate game was as important as performing well. Those who play the game well, were perceived as advancing in the organisation, while those who performed but did not play the game were left confused about their performance, and subsequently, their future. Initial data analysis suggests that if managers want to introduce more innovative ways of managing performance, the solution could be in the level and frequency of informal feedback occurring between managers and employees.
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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
Christos Fotopoulos, Athanasios Krystallis, Mitchell Ness
2002
The present study attempts to offer more insights into the Greek wine market with emphasis on wines produced from organically grown grapes by relating wine choice to consumers’ personal value structure. With the use of a qualitative sample and applying the Means-end Chains methodology and the corresponding “laddering” interviewing technique, it attempts first to reveal the way basic motives are linked to wine shopping behaviour of consumers and the way wine purchase-relevant knowledge is stored and organised in their memory in relation to their personal values. Then, by discriminating between organic food buyers and non-buyers, the study identifies motivational and cognitive discriminating differences between the two consumer types, which can offer a solid explanation as to their distinctive purchasing behaviour in respect of the organic products.
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Опубликовано на портале: 30-11-2003
T. S. Jayne, Takashi Yamano, James Nyoro
2003
This paper addresses the potential for interlinked credit/input/output marketing arrangements for particular cash crops to promote food crop intensification. Using panel survey data from Kenya, we estimate a household fixed-effects model of fertilizer use per hectare of food crops, using an instrumental variables approach for addressing the endogeneity of participation in interlinked credit arrangements. Results indicate that households engaging in interlinked marketing programs for selected cash crops applied considerably greater fertilizer on other crops (primarily cereals) not directly purchased by the cash crop trading firm. These findings suggest that, in addition to the direct stimulus that interlinked cash crop marketing arrangements can have on small farmer incomes, these institutional arrangements may provide spillover benefits for the productivity of the farmers. other activities such as food cropping.
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Опубликовано на портале: 04-01-2004
Cristina Marreiros, Mitchell Ness
Zaragoza, 2002
The objectives of this paper are to examine consumers’ perceptions of Protected Designation of Origin (PDO) beef on the basis of a survey of consumers and buyers of beef.

The paper identifies a profile of PDO beef consumers, examines their behaviour and perceptions on PDO beef, derives the dimensions of perceptions of PDO beef, and establishes segments based upon those dimensions. The results reveal that PDO consumers are representative of all geographical regions, age and profession groups, are lighter consumers of beef and shop for food mainly in the butchers. Consumers’ perceptions on PDO beef emphasises quality, safety, and control. However, underlying those perceptions are six main dimensions and it is possible to identify three segments of PDO beef consumers: a faithful consumer group, an unaware consumer group, and a sensory, price conscious group.
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Опубликовано на портале: 29-11-2003
Erik Mathijs, Nivelin Noev
2002
Present-day Central and Eastern European agriculture is characterized by a high incidence of small-scale farmers who are not producing for the market. This paper uses household level data from comparative farm surveys in Albania, Bulgaria, Hungary and Romania to analyze which farm household characteristics and endowments influence commercialization and subsistence farming.
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Опубликовано на портале: 29-11-2003
Denis A. Nadolnyak, Ian M. Sheldon
2002
In the paper, a dynamic model of diffusion of genetically modified crop technology is developed and simulated using the U.S. soybean market data. The model accounts for factors specific to agricultural markets, such as oligopsony power and strategic interaction among crop processors, growers’ characteristics such as adoption behavior, and identity preservation requirements. Simulation results show how these factors affect the magnitude and distribution of the potential gains from genetically modified crops.
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Опубликовано на портале: 28-11-2003
Bahaeddin Najafi, Mohammad Bakhshoodeh
2002
To evaluate the government intervention effects on growth of rice production in Iran, the nominal protective rate was calculated and a Nerlove supply model was applied to a time series of 1983- 1998. The results showed that in the majority of these years, producers has not been supported and therefore, redirecting the rice market is recommended. In order to get more efficient approach than the government intervention, diminishing the share of the government in the market and strengthening the private sector may be listed on the top of a list that could be regarded as a plan for making rice production profitable.
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Опубликовано на портале: 24-12-2003
Flora J. Nankhuni, Jill L. Findeis
Durban, 2003
This paper presents results of research that investigates if long hours of work spent by children in fuel wood collection and water collection activities, hereafter referred to as resource (collection) work, are related to the probability that a child aged 6-14 will attend school. Possible endogeneity of resource work hours is corrected for, using two-stage conditional maximum likelihood estimation. Using data from a 1997-98 Malawi Integrated Household Survey (IHS) conducted by the National Statistics Office (NSO), the study finds that children are significantly involved in resource collection work and their probability of attending school decreases with increases in hours spent on this work. The study further shows that girls spend more hours on resource work and are more likely to be going to school while burdened by this work. Consequently, girls may find it difficult to progress well in school. However, girls are not necessarily less likely to be attending school. The results further show that presence of more women in a household is associated with a lower burden of resource work on children and a higher probability of children.s school attendance while that of men is not. Finally, the study shows that children from the most environmentally degraded districts of central and southern Malawi are less likely to attend school and few of them have progressed to secondary school compared to those from the north region districts.
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