On July 2, 2015, the Basel Committee on Banking Supervision published a report on the impact and accountability of banking supervision. The report analyzes how global supervisors define and evaluate the impact of their policies and actions and discusses: (i) supervisory trends and their development over time since the financial crisis; (ii) the objectives of supervision and how these are transformed into supervisory actions; (iii) developments in how to measure the impact of supervision through quality assurance mechanisms and feedback loops within the supervisory process; and (iv) internal and external accountability arrangements in the wake of the financial crisis. 

The report is available at: http://www.bis.org/bcbs/publ/d326.pdf and the press release is available at: http://www.bis.org/press/p150702.htm