John Vickers
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View article: Competition policy and the consumer welfare standard
Competition policy and the consumer welfare standard Open
This paper, which was given as the 2024 Bellamy Lecture, reviews the law and economics of the consumer welfare standard in competition policy, particularly in relation to mergers and abuse of dominance. With qualifications relating to inpu…
View article: Trypanosoma cruzi infection diagnosed in dogs in nonendemic areas and results from a survey suggest a need for increased Chagas disease awareness in North America
Trypanosoma cruzi infection diagnosed in dogs in nonendemic areas and results from a survey suggest a need for increased Chagas disease awareness in North America Open
OBJECTIVE To describe the clinical presentation and outcome in dogs diagnosed with Trypanosoma cruzi infection in nonendemic areas and to survey veterinary cardiologists in North America for Chagas disease awareness. ANIMALS 12 client-owne…
View article: P-05 South London hospices working together to improve retail
P-05 South London hospices working together to improve retail Open
Background The retail team from St Christopher's Hospice has given consultancy support to neighbouring hospices, Greenwich & Bexley Community Hospice (GBCH), and Princess Alice Hospice (PAH). Through the hospices working in partnership tog…
View article: Patterns of Competitive Interaction
Patterns of Competitive Interaction Open
We explore patterns of price competition in an oligopoly where consumers vary in the set of firms they consider for their purchase and buy from the lowest‐priced firm they consider. We study a pattern of consideration, termed “symmetric in…
View article: Patterns of competitive interaction
Patterns of competitive interaction Open
We explore patterns of price competition in an oligopoly where consumers vary in the set of firms they consider for their purchase and buy from the lowest-priced firm they consider. We study a pattern of consideration, termed "symmetric in…
View article: Patterns of Price Competition and the Structure of Consumer Choice
Patterns of Price Competition and the Structure of Consumer Choice Open
We explore patterns of price competition in an oligopoly where consumers vary in the set of suppliers they consider for their purchase. In the case of "nested reach" we find equilibria, unlike those in existing models, in which price compe…
View article: Safer, but Not Safe Enough
Safer, but Not Safe Enough Open
The great divide between official analyses and economists’ views of optimal bank equity capital is not as wide as appears at first sight if the economics of risk is properly addressed. Adapting the BoE’s analysis to take account of abnorma…
View article: Patterns of Competition with Captive Customers
Patterns of Competition with Captive Customers Open
We study mixed-strategy equilibrium pricing in oligopoly settings where con-sumers vary in the set of suppliers they consider for their purchase-some being captive to a particular firm, some consider two particular firms, and so on. In the…
View article: Multiproduct Pricing Made Simple
Multiproduct Pricing Made Simple Open
We study multiproduct firms in the contexts of unregulated monopoly, regulated monopoly and Cournot oligopoly. Using the concept of consumer surplus as a function of quantities (rather than prices), we present simple formulas for optimal p…
View article: The Systemic Risk Buffer for UK Banks: A Response to the Bank of England’s Consultation Paper
The Systemic Risk Buffer for UK Banks: A Response to the Bank of England’s Consultation Paper Open
The article responds to the Bank of England’s (BoE) consultation paper of January 2016 on the systemic risk buffer for UK ring-fenced banks. It argues that, contrary to its proposed policy, the BoE should apply the highest permitted buffer…