The dataset includes balance sheet data of major UK banks for the period 2005-2009. The data is collected from each bank's annual reports over that time period. The purpose is to obtain information on market shares of leading UK banks. The ESRC Centre for Competition Policy (CCP) at the University of East Anglia (UEA) undertakes interdisciplinary research into competition policy and regulation that has real-world policy relevance without compromising academic rigour. It prides itself on the interdisciplinary nature of the research and the members are drawn from a range of disciplines, including economics, law, business and political science. The Centre was established in September 2004, building on the pre-existing Centre for Competition and Regulation (CCR), with a grant from the ESRC (Economic and Social Research Council).

Collation of secondary data. The dataset was constructed by collecting information from UK banks’ audited annual reports for 9 UK banks for the period 2005-2009. Some industry level variables were created and information was collected from the European Central Bank statistical data warehouse.