Wednesday, June 4, 2008

A party pooper’s guide to financial stability - FT.com

Summary:
Charles Goodhart (LSE) and Avinash Persaud proposing two devices to help regulators and supervisors play a useful counter-cyclical role: 1) amending supervisors' pay (rather than bankers directly); and a "simple framework" building on Basel II by raising capital adequacy requirements by a ratio linked to the growth of the value of bank assets, bank by bank. Should moderate excessive lending and build up reserves during booms. (Published: 04/06/08)


Notes:

  • Almost 12 months on from the start of the credit crunch and eight months since the run on the Northern Rock bank
  • developing consensus on what is to be done to make the financial system less vulnerable to crisis:
    • more disclosure, more regulation and reform of bankers’ compensation
    • largely the same consensus we reach after every crisis, ultimately to little effect
  • where there is a will there's a way?
    • financial supervisors had the wherewithal to do something about the party in the financial sector that was played out in full view of everyone between 2003 and 2006
    • they did not have the will to do it
    • William McChesney Martin (former chairman of fed): authorities should “re­move the punch bowl before the party gets going”
      • but: parties are fun
    • difficult for underpaid supervisors to squeeze past and take away the bowl of punch when there are:
      • powerful and rich lenders, borrowers with seemingly worthy projects and politicians taking credit for the good times
  • some argue it is not regulators and supervisors but monetary policy committees that should perform the role of official party pooper
    • but: interest rates changes alone cannot deliver both price and financial stability:
      • asset bubbles often follow periods of price stability (US 1929; Japan 1990s; Asia 1997-98; subprime mortgages 2007-08).
      • moreover, the level of interest rates required to prick a bubble might eviscerate the rest of the economy
  • proposing two devices to strengthen the backbones of regulators and supervisors
    1. amend supervisors’ pay
      • easier than aligning bankers’ bonuses to longer-term outcomes
      • large annual bonuses for supervisors that are withheld for five years and paid conditionally on successful supervision during this period
        • will be more willing to remove the punch in time – thereby limiting bankers’ bonuses in the first place
      • need independent assessment of supervisory success to avoid excessive regulatory zeal
    2. raise Basel II capital adequacy requirements by a ratio linked to the growth of the value of bank assets
      • focusing on value will help lessen the pro-cyclicality of fair value, mark-to-market accounting and value-at-risk models.
      • each bank would have a basic allowance of asset growth
        • would be linked to
          • the inflation target
          • the long-run economic growth rate, and
          • some margin for structural changes in the bank lending/gross domestic product ratio
        • this formulation enables regulators’ financial stability committees better to link micro to macro stability
        • allowances would be different for small operations
      • growth in the value of bank assets would be measured as a weighted average of annual growth
        • to emphasise more recent activity, exponential weights can be used
        • growth above the basic allowance over the past 12 months would have a 50 per cent weight, growth over the preceding year would have a 25 per cent weight and so forth until 100 per cent is approximated.
        • regulatory capital adequacy requirements would be raised by 0.33 per cent for each 1 per cent excess growth in bank asset values.
        • If a bank grew its assets at a rate of 21 per cent above its allowance, its minimum capital requirement would rise from, say, 8 per cent to 15 per cent.
      • purpose is to moderate excessive lending and build up reserves during booms
      • should help supervisors act as a countervailing force to powerful procyclical forces
  • proposal is evolutionary, since it builds on Basel II and it provides a simple, transparent rule for supervisors to play a useful counter-cyclical role
    • but: they must be given better incentives to do so
    • have already seen the deleterious but powerful effects of banking bonuses
      • Why not use financial incentives for more socially useful behaviour