134 research outputs found
Measuring Oligopsony Power of UK Salmon Retailers
No full textA 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 sufficiently closer to the perfect competition benchmark indicating that retailers as a whole behaved competitively during much of the period covered by this studySalmon, market power, error correction model, translog profit function, International Relations/Trade, Marketing, Research Methods/ Statistical Methods, JEL-I, JEL-J,
Measuring Market Power in the UK Retail Salmon Industry
No full textThis 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 that market power is the same for all three products in the study was rejected; further indicating that retailers may be exercising market power for smoked salmon.Market power, Error correction model, Dynamic demand systems, salmon, Marketing, JEL-1, JEL-J,
A Demand Analysis of the UK Canned Tuna Market
No full textThis study provides an analysis of the retail level demand for canned tuna in the UK using four-weekly scanned data for the period 1995–99. The role of product medium is analysed, looking at the interactions between the traditional tuna in brine and oil and the more recent value added tuna in sauces. A system of demand equations is estimated using the dynamic almost ideal demand system (AIDS) model. All products are demonstrated to have negative and inelastic own price elasticities. Tuna in brine and sauce is shown to be a normal good, while tuna in oil was demonstrated to be a luxury good. Tuna in oil was indicated as being a substitute for tuna in sauce., Consumer/Household Economics, Demand and Price Analysis, Food Consumption/Nutrition/Food Safety, Marketing, Q21.,
Assessing retail market competition for multi-aquaculture products
No full textPurpose – The purpose of this paper is to investigate market competition for three product types of salmon (smoke, fresh and whole salmon) to understand whether supermarkets are exercising market power over salmon consumers in the UK retail market. Design/methodology/approach – Competition and the corresponding pricing conduct among supermarkets are tested by applying dynamic structural simultaneous system equations and using similar data set used by Jaffry et al. (2003). Findings – The results indicate that the market is competitive for fresh fillets and whole salmon but retailers appeared to exert some level of market power for smoke salmon. The hypothesis that market power is the same for all three products in the study was rejected; further indicating that the market for fresh products are competitive while retailers may be exercising market power over consumers for smoke salmon. Research limitations/implications – Current data limitations did not allow the investigation to cover the past few years in the modelling process. However, the results are still relevant as there have been no major structural changes in aquaculture products retailing landscape in the recent past. Practical implications – Concerns over the supermarkets’ exercise of market power over consumers have prompted the competition authorities to continue investigating the situation in the UK supermarket sector since 1996. The most recent investigation by competition authorities was in 2006. In all cases, no evidence of market power was found despite increased market concentration. Results from this study generally uphold the claim of the competition authorities in the UK. Originality/value – This is the first study to use a model within a structural econometric framework of firms to test for competitiveness of salmon products in the UK market place
Measuring Oligopsony Power of UK Salmon Retailers
No full textA 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 sufficiently closer to the perfect competition benchmark to indicate that retailers as a whole behaved competitively during much of the period covered by this study.Salmon, market power, error correction model, translog profit function, Food Security and Poverty, JEL-I, JEL-J,
An analysis of monetary voluntary contributions for cultural resources: the case of the British Museum
No full text
- …
