Consulta: creatorFacets:"Fofana,   Abdulai"
Registros recuperados: 5
Data/hora: 11/06/2024 08:13:12

Measuring the economic benefits and costs of Bluetongue virus outbreak and control strategies in Scotland
Provedor de dados: 31
Autores: Fofana,   Abdulai; Toma,   Luiza; Moran,   Dominic; Gunn,   George J.; Stott,   Alistair W.
This paper provides an ex-ante economic analysis, comparing six alternative control strategies for the eradication of Bluetongue virus 8 against five incursion scenarios in cattle and sheep populations. The economic analysis assumes a common baseline unavoidable cost of public and private measures that together contribute to prevention of incursion of BTV8 into Scotland. These costs continue over the five year horizon of this analysis regardless of whether a BTV8 epidemic ensues in Scotland and their total present value was found to be approximately £141m over the 5year period. The benefit of this investment is the costs of a BTV8 outbreak avoided; which depends on the time, location and nature of the incursion, on the control strategies adopted to counter...
Tipo: Conference Paper or Presentation
Palavras-chave: Bluetongue virus; Epidemiology; Direct and indirect costs; Benefit analysis; Risk and Uncertainty.
Ano: 2009
URL: http://purl.umn.edu/51052

DEMAND INTERACTION BETWEEN FARMED SALMON AND WILD CAUGHT FISH IN THE UNITED KINGDOM
Provedor de dados: 31
Autores: Fofana,   Abdulai; Clayton,   Patty.
Demand relationships between salmon and a number of wild-caught whitefish and shellfish species using both single equation models and linearised AIDS system framework. The system is well represented although autocorrelation were found in both approaches but this is less of a problem in the systems approach. A cautious interpretation of the results indicated that salmon had a long-run market relationship with the whitefish species of cod, monkfish, saithe, whiting and plaice and with the shellfish species of mussels, nephrops, scallops and shrimp. These groups contain the main seafood species consumed within the United Kingdom, and therefore should include most potential substitutes for salmon.
Tipo: Working or Discussion Paper
Palavras-chave: Demand; Salmon; Whitefish; Shellfish; AIDS; Elasticities; Demand and Price Analysis; Resource /Energy Economics and Policy; C32; C22; D12.
Ano: 2003
URL: http://purl.umn.edu/11828

Measuring Market Power in the UK Retail Salmon Industry
Provedor de dados: 31
Autores: Fofana,   Abdulai; Jaffry,   Shabbar.
This paper presents an investigation into the market structure for three product types of salmon (smoked, fresh and whole salmon) in the UK retail market. Evidence of the potential for market power and pricing conduct is analysed using structural simultaneous system equations based on the Bresnahan (1982) model. The importance of the retail market is recognised given the dominance of supermarket chains which accounted for £1.6 billion sales of seafood and the share of about 87% of all seafood retail sales in 2004 as compared with only 16% in 1988. The results indicate that the system is well represented by the models and that the market is competitive for fresh fillets and whole salmon but retailers exert some market power for smoked salmon. The hypothesis...
Tipo: Working or Discussion Paper
Palavras-chave: Market power; Error correction model; Dynamic demand systems; Salmon; Marketing; JEL-1; JEL-J.
Ano: 2006
URL: http://purl.umn.edu/45873

Measuring fishing dependency using Occupational Alternative Ratio- an application to Shetland whitefish industry
Provedor de dados: 31
Autores: Fofana,   Abdulai.
In this paper Occupational Alternative Ratios (OAR) are applied to the 2003 employment survey data from Shetland to measure dependency on whitefish in individual communities as an alternative to traditional measures of fishing dependency, such as fishing employment and fisheries contribution to Gross Domestic Product (GDP). The OAR measure summarises the potential impact that the size of the whitefish industry has upon the supply of labour for alternative occupations within the local economy. The results of the model indicate that Whalsay is the most whitefish dependent community, followed by Scalloway and Skerries while the least whitefish dependent community is West Mainland. The OAR indices depict a clear distinction between the most and least dependent...
Tipo: Working or Discussion Paper
Palavras-chave: Labor and Human Capital; Livestock Production/Industries.
Ano: 2006
URL: http://purl.umn.edu/45997

Measuring Oligopsony Power of UK Salmon Retailers
Provedor de dados: 31
Autores: Fofana,   Abdulai; Jaffry,   Shabbar.
A significant increase of concentration in the UK salmon retail subsector has heightened concerns about retail firms’ ability to exercise market power in the purchase of supplies (oligopsony power). To assess the extent to which retail firms have exercised oligopsony power, we develop a dynamic error correction translog profit function to model the behaviour of retailers in the input market for smoke, fillet and whole salmon. Initial estimates indicated violations of monotonicity and convexity conditions as implied by economic theory. In order to ameliorate the problem, a Bayesian technique was used to impose inequality restrictions to correct the anomaly. The final estimated indices of market power in the models were low and statistically significant but...
Tipo: Working or Discussion Paper
Palavras-chave: Salmon; Market power; Error correction model; Translog profit function; Food Security and Poverty; JEL-I; JEL-J.
Ano: 2008
URL: http://purl.umn.edu/61116