overtrading, revulsion, and discredit

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Overtrading, Revulsion, and Discredit 20072010 J. Bradford DeLong U.C. Berkeley and NBER March 2010

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The financial crisis of 2007-2010

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Page 1: Overtrading, Revulsion, and Discredit

Overtrading,  Revulsion,  and  Discredit  2007-­‐2010  

J.  Bradford  DeLong  

U.C.  Berkeley  and  NBER  

March  2010  

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This  Talk  

•  Five  parts:  –  Where  are  we?    –  How  did  we  get  here?    –  Where  are  we  going?    –  What  should  we  do  about  it?  –  How  will  history  evaluate  us?  

•  Accompanied  by  parentheQcal  comments  about  the  state  of  economics  as  a  discipline:  –  I  confess  I  was  somewhat  shocked  when  I  realized  that  the  

economic  theory  I  needed...  was  preTy  much  all  developed  before  1850...  

–  That  says  something  depressing  about  claims  to  be  a  progressive  and  progressing  discipline...  

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Where  We  Are:  Worst  Recession  since  1938  

Page 4: Overtrading, Revulsion, and Discredit

How  Did  We  Get  Here?:  Economists’  Hubris  

•  Four  Qmes  in  the  past  century  and  a  half  prominent  economists  have  assured  us  that:  –  “The  central  problem  of  depression-­‐prevenQon  has  been  solved”  —Robert  Lucas...  

–  Earlier  we  had:  •  Walter  Heller:  “new  dimensions  of  poliQcal  economy”...  •  Irving  Fisher:  “permanent  and  high  plateau”...  •  Walter  Bagehot:  the  Bank  of  England  knows  how  to  manage  Lombard  Street...  

•  When  a  prominent  economist  says  that  the  problem  of  depression-­‐prevenQon  has  been  solved...  

•  ...hold  on  to  your  wallet!  

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How  Did  We  Get  Here?:  The  PaTern  since  1825  

•  John  Stuart  Mill  in  1844:  –  A  commercial  crisis  is  the  recoil  of  prices  aber  they  have  been  raised  

by  speculaQon...  set  in  moQon  by  something  which  affords  apparent  grounds  for  expecQng...  extra  demand....  The  rise...  aTracts  new  speculators...  The  largest  purchases  are  oben  made  at  the  highest  price.  But  at  last  it  is  discovered  that  the  rise  has  gone  beyond  the  permanent  cause...  Then  the  recoil  comes....  Many...  contracted  engagements  which  they  trusted  to  a  further  rise  for  giving  them  the  means  of  fulfilling...  [I]n  1825  and  at  several  other  periods  in  the  present  century...  the  ulQmate  revulsion  is  most  extensive  and  calamitous...  

–  As  long  as  the  seasons  vary,  as  markets  fluctuate,  and  men  miscalculate,  or  the  passion  of  gain...  over-­‐rides  their  calculaQons,  so  long  will  these  alteraQons  of  ebb  and  flow,  these  “cycles,”  as  Colonel  Torrens  has  named  them,  “of  excitement  and  depression”  [will]  conQnue.  They  are  worse  in  America  than  in  England  because  American  commerce  is  conducted  in  a  more  gambling  spirit...  

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We  Should  Have  Been  ExpecQng  This  

•  1990:  The  S&L  crisis  and  its  credit  crunch:  –  Deposit  insurance  coupled  with  mis-­‐regulaQon...  –  Heads  we  win,  tails  the  government  loses...  –  Remember  the  “KeaQng  Five”?  

•  1998:  The  East  Asian  crash:  –  Hot  money  from  abroad...  –  Poor  regulatory  framework...  –  Heads  we  win,  tails  it’s  the  foreigners’  problem...  

•  2001:  The  dot-­‐com  crash:  –  Not  that  people  overesQmated  high-­‐tech...  –  But  they  overesQmated  how  easy  it  would  be  to  moneQze  high-­‐

tech...  •  And  today...  

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Today’s  Crisis  •  Cheap  money  from  abroad:  

–  The  “global  savings  glut”...  •  Financial  engineering:  

–  “InvenQng”  new  ways  to  to  turn  risky  lead  into  safe  well-­‐hedged  gold...  •  The  corporate  form  and  investment  banking:  

–  In  a  partnership  every  thirty-­‐something  is  a  risk  manager...  –  Today  everyone  is  seeking  large  bonuses  paid  in  cash  on  the  basis  of  mark-­‐to-­‐model  valuaQons  

at  the  end  of  the  fiscal  year...  

•  The  collapse  of  lending  standards  in  housing...  •  The  belief  that  the  risks  were  well-­‐spread:  

–  4  million  homes  x  $150K  per  home...  –  Only  $600  billion  of  losses  in  mortgage-­‐backed  securiQes...  –  In  a  $90  trillion  global  asset  value  economy...  –  But  the  risks  weren’t  well-­‐spread:  

•  They  were  concentrated...  •  Originate-­‐and-­‐distribute  turns  into  originate-­‐and-­‐mark-­‐to-­‐model-­‐and-­‐collect-­‐your-­‐year-­‐end-­‐bonus...  

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Parenthesis:  We  Don’t  Have  too  Much  in  New  Housing  Capital  Anymore  

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Parenthesis:  We  Don’t  Have  too  Many  Workers  in  ConstrucQon  Anymore  

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ImplicaQon:  The  Claim  that  We  “Need”  a  Depression  Is  Incoherent  

•  We  don’t  have  any  overhang  of  mal-­‐investment...  •  We  don’t  have  any  excess  employment  in  sectors  where  bosses  

need  to  be  pushed  by  losses  to  shut  factories  and  drive  out  workers...  

•  John  Maynard  Keynes,  1932:  –  Doubtless...  the  rate  of  growth  of  some  individual  commodiQes...  

could  not  always  be  in  just  the  appropriate  relaQon....  But,  on  the  whole,  I  see  liTle  sign  of  any  serious  want  of  balance....  It  seems  an  extraordinary  imbecility  that  this  wonderful  outburst  of  producQve  energy  [over  1924-­‐1929]  should  be  the  prelude  to  impoverishment  and  depression.  Some...  regard  it  both  as  an  inevitable  and  a  desirable  nemesis....  It  would,  they  feel,  be  a  victory  for  the  Mammon  of  Unrighteousness  if  so  much  prosperity  was  not  subsequently  balanced  by  universal  bankruptcy.  We  need,  they  say,  what  they  politely  call  a  'prolonged  liquidaQon'  to  put  us  right....  And  when  sufficient  Qme  has  elapsed  for  the  compleQon  of  the  liquidaQon,  all  will  be  well  with  us  again...  

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If  We  Don’t  in  Some  Sense  “Need”  a  Depression,  Why  Do  We  Have  One?  

•  We  have  10%  unemployment...  •  We  have  10%  unemployment  because  spending  is  low...  

•  Spending  is  low  because:  – A  lot  of  people  are  unemployed  and  have  less  income...  

– A  lot  of  people  want  to  shib  away  from  buying  goods  and  bonds  and  put  their  porrolios  in  safe  cash  instead:  •  A  process  reinforced  by  the  fact  that  a  lot  of  things  that  used  to  be  seen  as  safe-­‐as-­‐cash—AAA  mortgage-­‐backed  securiQes,  anyone?—aren’t...  

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Cusng  Edge  Macroeconomic  Theory—as  of  1844  

•  Jean-­‐BapQste  Say,  1829:  –  The  Bank  [of  England]...  obliged  to  redeem  its  banknotes  in...  gold...  ceased  to  

put  new  notes  into  circulaQon...  cease[d]  to  discount...  bills.  Provincial  banks...  follow[ed]...  commerce  found  itself  deprived  at  a  stroke  of...  advances....  As  the  bills  that  businessmen  had  discounted  came  to  maturity,  they  were  obliged  to  meet  them,  and  finding  no  more  advances  from  the  bankers,  each  was  forced  to  use  up  all  the  resources  at  his  disposal.  They  sold  goods  for  half  what  they  had  cost.  Business  assets  could  not  be  sold...  a  mulQtude  of  workers  were  without  work..  bankruptcies  were  declared...  merchants  and  among  bankers...  having  placed  more  bills  in  circulaQon  than  their  personal  wealth  could  cover  could  no  longer  find  guarantees...  beyond  the  undertakings  of  individuals  many  of  whom  had  themselves  become  bankrupt...  

•  John  Stuart  Mill,  1844:  –  Persons...  from  a  general  expectaQon  of  being  called  upon  to  meet  sudden  

demands,  liked  beTer  to  possess  money  than  any  other  commodity...  all  other  commodiQes  were  in  comparaQve  disrepute....  [T]he  result  is,  that  all  commodiQes  fall  in  price,  or  become  unsaleable....  [T]here  would  seem  to  be  in  the  nature  of  the  case  no  parQcular  impropriety  in  saying  that  there  is  a  superabundance  of  all  or  most  commodiQes,  when  all  or  most  of  them  are  in  this  predicament...  

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Only  Two  Significant  Differences  Between  Then  and  Now  

•  Say’s  and  Mill’s  “commercial  crises”  involved  a  fibeen-­‐percent  decline  in  a  fibh  of  the  economy—call  it  a  3%  fall  in  real  GDP  relaQve  to  trend...  

•  Our  demand  and  producQon  shorrall  from  potenQal  today  is  approaching  10%  of  our  enQre  volume  of  producQon  and  spending...  

•  Say  and  Mill  knew  that  commercial  crises  were  a  new  and  unmanaged  disease  of  industrial  market  economies...  

•  Our  economists  only  a  liTle  while  ago  were  very  confident  that  we  understood  the  process  and  “won’t  let  it  happen  again...”    

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But  Unfortunately...  –  John  Stuart  Mill,  1844,  once  again:  

•  What  was  affirmed  by  Cicero  of  all  things  with  which  philosophy  is  conversant,  may  be  asserted  without  scruple  of  the  subject...  there  is  no  opinion  so  absurd  as  not  to  have  been  maintained  by  some  person  of  reputaQon.  There  even  appears  to  be  on  this  subject  a  peculiar  tenacity  of  error—a  perpetual  principle  of  resuscitaQon  in  slain  absurdity...  

–  There  are  lots  of  people  out  there  who  are  sQll  saying  that  we  “need”  a  depression...  •  ...or  at  least  that  we  should  not  do  anything  out-­‐of-­‐the-­‐ordinary  to  try  to  cut  it  short  

•  Perhaps  not  important  were  it  not  for  poliQcal  backing  from  the  Republican  Party:  –  Very  odd:  Obama’s  anQ-­‐recession  policies  are  quite  close  to  what  John  

McCain’s  would  have  been...  –  But  Republicans  in  congress  are  following  the  Gingrich  strategy  (Republican  

governors  are  very,  very  different...)  

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Indeed...  

Page 16: Overtrading, Revulsion, and Discredit

Not  So  Cusng-­‐Edge  Macroeconomic  Theory—as  in  Academia  Today  

•  Three  examples:  –  Nobel  Prize-­‐winning  University  of  Chicago  Professor  Robert  Lucas:  

•  [When  a  large  number  of  people  are  unemployed,  it  is  because  they]  expect...  a  return  to  normal  [wage]  levels....  With  these  expectaQons,  it  is  to  a  [worker’s]  advantage  to  [decrease]  his  current  supply  of  labor...  when  [wages  fall]....  [M]oney  wages...  fell  noQceably  below  their  ‘normal  levels’  in  1930  [and]  fell  further  below  in  subsequent  years...  

–  Nobel  Prize-­‐winning  ex-­‐Chicago  (now  ASU)  Professor  Edward  PrescoT:  •  The  period  of  the  '20s  was  one  of  healthy  growth,  unQl  Hoover's  anQ-­‐market,  anQ-­‐

globalizaQon,  anQ-­‐immigraQon,  pro-­‐  cartelizaQon  policies  were  insQtuted,  brought  this  expansion  to  an  end,  and  created  a  great  depression...  

–  Nobel  shortlist  Chicago  Professor  Eugene  Fama:  •  [P]rivate  investment  must  equal  the  sum  of  private  savings,  corporate  savings  (retained  

earnings),  and  government  savings....  Government  bailouts  and  sQmulus  plans  seem  aTracQve  when  there  are  idle  resources—unemployment....  The  problem  is  simple:  bailouts  and  sQmulus  plans  are  funded  by  issuing  more  government  debt.  (The  money  must  come  from  somewhere!)  The  added  debt  absorbs  savings  that  would  otherwise  go  to  private  investment.  In  the  end,  despite  the  existence  of  idle  resources,  bailouts  and  sQmulus  plans  do  not  add  to  current  resources  in  use.  They  just  move  resources  from  one  use  to  another...  

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ReacQons  to  Today’s  Not  so  Cusng-­‐Edge  Macroeconomic  Theory  

•  A  friendly  criQque:  FRBM  President  Narayana  Kocherlakota:  a  “great  forgesng,”  a  “great  vacaQon,”  a  “great  rusQng”:  –  Why  do  we  have  business  cycles?  Why  do  asset  prices  move  around  so  much?...  [Modern  m]

acroeconomics  has  liTle  to  offer  by  way  of  answer  to  these  quesQons....  The  sources  of  disturbances  in  macroeconomic  models  are  (to  my  taste)  patently  unrealisQc...  large  quarterly  movements  in  the  technological  fronQer...  shocks  to  the  marginal  uQlity  of  leisure...  shocks  to  the  depreciaQon  rate....  None  of  these  disturbances  seem  compelling,  to  put  it  mildly...  

•  An  unfriendly  criQque:  Robert  Solow:  –  Suppose  someone  sits  down  where  you  are  sisng  right  now  and  announces  to  me  that  he  is  

Napoleon  Bonaparte.  The  last  thing  I  want  to  do  with  him  is  to  get  involved  in  a  technical  discussion  of  cavalry  tacQcs  at  the  BaTle  of  Austerlitz.  If  I  do  that,  I’m  gesng  tacitly  drawn  into  the  game  that  he  is  Napoleon  Bonaparte...  

•  A  “not  so  cusng-­‐edge”  rebuTal:  Robert  Lucas  on  Christy  Romer:  –  The  Moody's  model  that  ChrisQna  Romer  -­‐-­‐  here's  what  I  think  happened....  [S]omebody  says,  

“you've  got  to  come  up  with  a...  defense  of  this  fiscal  sQmulus...”  So  she  scrambled  and  came  up  with  these  mulQpliers...  [that]I  don't  think  anyone  really  believes.  These  models  have  never  been  discussed  or  debated....  These  are  kind  of  schlock  economics....  I  think  it's  a  very  naked  raQonalizaQon  for  policies  that  were  already,  you  know,  decided  on  for  other  reasons...  

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Does  It  MaTer  that  the  Economics  Profession  Is  Divided?  

•  It  would  be  nice  if  people  adopted  what  I  think  of  as  the  sound  analyses  of  Say  (1829)  and  Mill  (1844)...  

•  But  many  people  are  not:  and  they  recommend  policies:  –  Lucas:  easy  money,  but  no  banking  policy,  no  fiscal  policy...  –  PrescoT:  deregulate  and  cut  taxes!...  –  Fama:  ???  

•  And  a  whole  bunch  of  others:  NPR,  the  New  York  Times,  Na3onal  Review,  the  enQre  Republican  congressional  caucus:  –  All  saying  we  should  do  nothing  or  we  should  do  less  than  we  

are  doing...  •  I  think  that  this  does  maTer,  because  this  is  not  going  to  be  

over  quickly...  

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Where  Are  We  Going?  Vs  versus  Ls  

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The  S&P  500  

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Returns  on  Safe  Debt  at  Historic  Lows  

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The  Problem  Is  Exactly  What  J.S.  Mill  and  J.-­‐B.  Say  Would  Have  Said  

•  Excess  demand  for  cash  (and  safe  bonds):  – Reinforced  by  the  collapse  of  the  supply  of  safe  assets”  •  Or  at  least  of  assets  that  are  perceived  to  be  safe...  

•  Thus  deficient  demand  for  other  things:  – Risky  bonds  and  loans  to  finance  investment  spending...  

– Goods  and  services...  •  Reinforced  by  a  vicious  downward  spiral...  

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Should  We  Wait  for  the  Market  to  Cure  It?  

•  Prices  will  move;  demands  will  adjust;  supplies  will  respond  to  incenQves...  

•  The  prices  of  risky  assets  (and  goods  and  services)  will  fall  and  that  will  boost  demand;  the  high  prices  of  safe  assets  will  call  forth  more  supply...  

•  A  “prolonged  liquidaQon”...  •  Problems  with  a  “prolonged  liquidaQon”:  

–  “Prices  move”  means  wage  cuts—which  people  hate...  –  “Prices  move”  means  further  falls  in  asset  values—which  means  

more  bankruptcies:  •  And  fewer  rather  than  more  safe  assets...  

–  “More  supply”  means  more  private-­‐sector  financial  engineering:  •  Do  we  really  want  that?  

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What  Should  the  Government  Do?  

•  The  big  picture:  – Boost  the  supply  of  safe  assets:  

• Walras’s  Law:  if  you  have  two  markets  and  get  one  market  back  into  balance,  the  other  will  come  into  balance  automaQcally  

– Boost  the  demand  for  risky  assets:  •  Do  so  in  a  way  that  doesn’t  set  up  yet  more  problems  in  the  future...  

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What  Is  the  Government  Doing?  •  Boost  the  supply  of  safe  assets:  

–  Guarantee  risky  assets—banking  policy...  –  Sell  off  safe  assets—monetary  policy...  –  Make  more  safe  assets—fiscal  policy...  

•  Boost  the  demand  for  risky  assets  (and  goods  and  services):  –  “Restore  confidence”...  –  NaQonalize  enterprises  (financial  and  non-­‐financial)  and  tell  them  to  spend  

and  invest...  –  Invest  in  enterprises...  

•  Which  should  we  do?  All  of  them!  –  We  really  don’t  know  which  are  most  effecQve;  we  haven’t  been  here  before...  

•  How  much  should  we  do?  –  Remember:  All  these  policies  have  downsides:  

•  Banking  and  industrial  policy:  public  managers  follow  poliQcal  rather  than  economic  logic...  

•  Fiscal  policy:  debt  overhang...  •  Monetary  policy:  excessive  liquidity  provision  triggering  inflaQon...  

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But  We  Would  See  These  Costs,  We  Think  

•  If  the  market  thought  we  were  running  out  of  room  on  fiscal  policy...  –  ...then  interest  rates  on  government  bonds—especially  TIPS—would  be  high  

and  rising...  •  If  the  market  thought  we  were  running  out  of  room  on  monetary  policy...  

–  ...then  the  inflaQon  premium  between  regular  government  bonds  and  TIPS  would  be  high  and  rising...  

•  But  do  we  trust  financial  markets  to  give  us  good  signals?  •  Costs  of  banking  and  industrial  policy  harder  to  see  at  this  Qme,  but  they  

are  there:  –  Moral  hazard...  –  Unjust  enrichment...  –  Fear  of  “misallocaQon”  and  “inefficiency”...  

•  But  an  extra  13  million  people  unemployed  and  underemployed  is  the  greatest  misallocaQon  and  inefficiency  of  all...  

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How  Will  History  Evaluate  Us?  •  The  view  from  Washington:  

–  The  Bush  administraQon  and  the  Federal  Reserve  were  blindsided  by  the  problem:  •  Focusing  on  “global  imbalances”...  •  Overwary  of  regulaQon...  •  Confident  in  the  Federal  Reserve’s  ability  to  handle  any  situaQon  on  its  own...  •  Overly  fearful  of  enabling  “moral  hazard”...  

–  The  big  mistake  of  Lehman  Brothers...  –  But  there  is  no  Great  Depression:  

•  10%  unemployment  for  a  full  year  is  not  20%  unemployment  for  four  years...  –  And  the  Obama  AdministraQon  has  done  everything  the  sixQeth  

senator  would  allow  it  to  do...  •  My  view:  the  glass  is  at  least  half  empty...  

–  ...but  at  least  there  is  a  glass...