|
|
|
| Registros recuperados: 27 | |
|
|
| Speelman, Stijn; D'Haese, Marijke F.C.; Buysse, Jeroen; D'Haese, Luc. |
| This paper analyses the efficiency with which water is used in small-scale irrigation schemes in North-West Province in South Africa and studies its determinants. In the study area, small-scale irrigation schemes play an important role in rural development, but the increasing pressure on water resources and the approaching introduction of water charges raise the concern for more efficient water use. With the Data Envelopment Analysis (DEA) techniques used to compute farm-level technical efficiency measures and sub-vector efficiencies for water use, it was shown that under Constant Returns to Scale (CRS) and Variable Returns to Scale (VRS) specification, substantial technical inefficiencies, of 49% and 16% respectively, exist among farmers. The sub-vector... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 2007 |
URL: http://purl.umn.edu/7904 |
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
|
| Begum, Ismat Ara; Buysse, Jeroen; Alam, Mohammad Jahangir; Van Huylenbroeck, Guido. |
| This study estimates the technical, allocative and economic efficiency obtained from the Data Envelopment Analysis (DEA) approach using farm level survey data to a sample of 100 poultry farmers in Bangladesh for the year 2007. The results from the DEA approach show that there is substantial technical, allocative and economic inefficiency in poultry production in Bangladesh. The results of the study reveal that under constant return to scale (CRS) and variable returns to scale (VRS) specification, on average, the farms technical, allocative and economic efficiencies were 88%, 70%, 62% and 89%, 73%, 66% respectively. Thus the results indicate that efficiency scores vary substantially across the sampled farms. To explain some of these variations, the... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Economic efficiency; DEA; Poultry farms; Farm Management; Livestock Production/Industries; Production Economics. |
| Ano: 2009 |
URL: http://purl.umn.edu/50900 |
| |
|
| |
|
|
| Claeys, Dakerlia; Lauwers, Ludwig H.; Marchand, Fleur L.; Van Meensel, Jef; Buysse, Jeroen; Van der Straeten, Bart; Van Huylenbroeck, Guido. |
| The paper discusses an ex ante evaluation of the derogation on the Nitrates Directive for Flanders, Belgium, which is a case of intensive but highly productive livestock areas. The aim is to develop an accurate simulation model to detect small differences in manure surpluses caused by changes of manure production and/or utilization. The system of models consists of various modules to fine tune the calculations of manure production, fertilizing behaviour and manure allocation and disposal on and off farm. The results show that derogation may cause the existing manure surpluses to expire, if only nitrogen limits are considered and no transactions costs are taken into account. When also phosphate fertilization limits are considered, the increase in manuring... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Nitrates Directive; Derogation; Modelling; Environmental Economics and Policy; Livestock Production/Industries. |
| Ano: 2008 |
URL: http://purl.umn.edu/44436 |
| |
|
| |
|
|
| Frija, Aymen; Buysse, Jeroen; Speelman, Stijn; Chebil, Ali; Van Huylenbroeck, Guido. |
| The paper aims to investigate the economies of scale of Water Users’ Associations (WUA) in Tunisia. During the last years there has been a lot of discussion in Tunisia about the optimal size of WUAs, which allows more efficient management of the water resources at the local level. In this work we propose to see if the size of the WUA in the governorate of Nabeul (Central-Eastern part of Tunisia) would have to increase or decrease in order to maximize their efficiency. Apart from this qualification we also quantify the scale efficiency and scale elasticity of the WUA using Data Envelopment Analysis (DEA) models. The results show that the output space (volume of water distributed and number of ha managed and irrigated) of the WUA that attain a high level of... |
| Tipo: Journal Article |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 2010 |
URL: http://purl.umn.edu/95982 |
| |
|
| |
|
| |
|
|
| Alam, Mohammad Jahangir; Begum, Ismat Ara; Rahman, Sanzidur; Buysse, Jeroen; Van Huylenbroeck, Guido. |
| The market reform policy in agriculture and the trade liberalization during the early 1990s has led to structural changes in the agricultural sector of Bangladesh. The question of whether market reform policies in Bangladesh facilitated rice production is examined in this paper. This paper uses stochastic frontier production function to measure total factor productivity (TFP), technical change, and technical efficiency change covering the period of pre-market reform (1987) and post-market reform (2000 and 2004). To fulfill the objective, the study used panel data of 73 same farm households from a field survey of 1987–1988, 1999-2000 and 2003-04. It is evident from the study results that over time period (1987-2004), the TFP increased (31.76%) only due to... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Farm Management. |
| Ano: 2011 |
URL: http://purl.umn.edu/108948 |
| |
|
|
| Speelman, Stijn; Frija, Aymen; Buysse, Jeroen; Van Huylenbroeck, Guido. |
| With increasing water scarcity, research on policy options for improved water allocation and governance becomes an urgent priority for many developing and developed countries. Evaluating institutional alternatives is however a challenging task. This article takes a comparative approach and compares case study data from Tunisia and South Africa highlighting the importance of the water rights system for irrigators. Using contingent valuation methods the benefits for water users of changes in water rights systems are quantified. In both countries WTP estimates reveal that from the farmers’ perspective significant improvements can be made to the current water rights systems. This is valuable information for policy makers to guide institutional reforms. |
| Tipo: Journal Article |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 2010 |
URL: http://purl.umn.edu/95954 |
| |
|
|
| Alam, Mohammad Jahangir; Buysse, Jeroen; Begum, Ismat Ara; Nolte, Stephan; Wailes, Eric J.; Van Huylenbroeck, Guido. |
| The paper analyzes the impact of trade liberalization and changes in world prices of agricultural commodities in Bangladesh using single country CGE model. Since the agricultural sector is sensitive to overall employment, household welfare and food security, the analysis focuses on the changes in agricultural production, consumption, household income and welfare. The results show that trade liberalization increases the welfare of all household groups while world market price increases decrease welfare. It means that although trade liberalization generates a welfare increase for households but this is dependent on the relative level of world commodity prices. Our results are based on the analysis of aggregate household groups, so it may be of future... |
| Tipo: Presentation |
Palavras-chave: Static; CGE; Trade policy; World prices; Agricultural commodities; Bangladesh; Agricultural and Food Policy; Demand and Price Analysis; Food Security and Poverty; International Development; International Relations/Trade. |
| Ano: 2012 |
URL: http://purl.umn.edu/123724 |
| |
|
|
| Buysse, Jeroen; Van der Straeten, Bart; Claeys, Dakerlia; Lauwers, Ludwig H.; Marchand, Fleur L.; Van Huylenbroeck, Guido. |
| To explain over- and underuse of available quota, Buysse et al. (2007) have integrated the shadow cost of the quota constraint in a quota flexibility function in a positive mathematical programming model. This method and central hypothesis, formulated and tested for the case of Belgian sugar beet farms, is in current paper extended and confirmed for the cases of Flemish dairy quota and manure emission rights. Despite the different organisation, objectives and implementations of the diverse quota systems, the results are similar. A higher utilisation of quota is significantly driven by the quota rent, but farm characteristics are also important and the effect declines with increasing quota rent. Regardless the quota, the dairy quota flexibility behaviour of... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Quota; Flexibility; Positive Mathematical Programming; Farm model; Common Agricultural Policy; Agricultural and Food Policy; Demand and Price Analysis; Research Methods/ Statistical Methods. |
| Ano: 2008 |
URL: http://purl.umn.edu/6640 |
| |
|
| |
|
| |
|
|
| Van der Straeten, Bart; Buysse, Jeroen; Nolte, Stephan; Lauwers, Ludwig H.; Claeys, Dakerlia; Van Huylenbroeck, Guido. |
| Within the framework of the nitrate directive, member states have the possibility to apply for derogation, i.e. increasing fertilization standards under certain conditions. Several EU regions have made use of this possibility but all in a different way. In 2009, 6 different derogation policies were worked out. This paper focuses on the differences between the applied policies and makes an assessment of the impact of these differences on the application rate of derogation, the manure surplus and the costs to allocate the manure. Based on the MP-MAS model described by Van der Straeten et al. (2010) the different scenarios are applied on a single case area (Flanders) and the economic effects have been simulated. Results show large differences between the... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Nitrate directive; MAS-model; Derogation; Flanders; Agricultural and Food Policy; Q12; Q18; Q51; Q52. |
| Ano: 2011 |
URL: http://purl.umn.edu/99426 |
| |
| Registros recuperados: 27 | |
|
|
|
