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The Failure of a Clearinghouse: Empirical Evidence Vincent Bignon - - PowerPoint PPT Presentation

The Failure of a Clearinghouse: Empirical Evidence Vincent Bignon Guillaume Vuillemey Banque de France HEC Paris & CEPR Conseil scientifique de lAMF Paris April 2017 Vincent Bignon, Guillaume Vuillemey The Failure of a


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SLIDE 1

The Failure of a Clearinghouse: Empirical Evidence

Vincent Bignon Guillaume Vuillemey Banque de France HEC Paris & CEPR Conseil scientifique de l’AMF Paris April 2017

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 2

Motivation

Central clearing counterparties (CCPs) become widespread

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 3

Motivation

Central clearing counterparties (CCPs) become widespread CCP expected to improve financial stability

CCPs insure counterparty risk; netting benefits

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 4

Motivation

Central clearing counterparties (CCPs) become widespread CCP expected to improve financial stability

CCPs insure counterparty risk; netting benefits

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 5

Motivation

Central clearing counterparties (CCPs) become widespread CCP expected to improve financial stability

CCPs insure counterparty risk; netting benefits

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 6

Motivation

Central clearing counterparties (CCPs) become widespread CCP expected to improve financial stability

CCPs insure counterparty risk; netting benefits

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 7

Motivation

Central clearing counterparties (CCPs) become widespread CCP expected to improve financial stability

CCPs insure counterparty risk; netting benefits

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 8

Motivation

New risk: CCP default

Dramatic effects on markets and macro stability (Duffie, 2015) LCH Swapclear: 269 trillion USD outstanding Rare events: Three cases known in history, no existing study

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 9

Motivation

New risk: CCP default

Dramatic effects on markets and macro stability (Duffie, 2015) LCH Swapclear: 269 trillion USD outstanding Rare events: Three cases known in history, no existing study

This paper: First empirical evidence on CCP default

Failure of CCP in Paris Commodity Exchange in 1974 Unique descriptive evidence: novel, hand-collected, archive data CCP risk management outside and around distress

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 10

Motivation

New risk: CCP default

Dramatic effects on markets and macro stability (Duffie, 2015) LCH Swapclear: 269 trillion USD outstanding Rare events: Three cases known in history, no existing study

This paper: First empirical evidence on CCP default

Failure of CCP in Paris Commodity Exchange in 1974 Unique descriptive evidence: novel, hand-collected, archive data CCP risk management outside and around distress

Implications: CCP capital structure & default management

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 11

CCP capital structure

Matched book

In-the-money transactions Amounts owing to members Out-of-the-money transactions Collateral held Other assets Equity

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 12

CCP capital structure

Matched book Indifferent to settlement prices

In-the-money transactions Amounts owing to members Out-of-the-money transactions Collateral held Other assets Equity

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 13

CCP capital structure

Matched book Indifferent to settlement prices

In-the-money transactions Amounts owing to members Out-of-the-money transactions Collateral held Other assets Equity New in-the-money New out-of-the money

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 14

CCP capital structure

Matched book Indifferent to settlement prices Low equity

In-the-money transactions Amounts owing to members Out-of-the-money transactions Collateral held Other assets Equity New in-the-money New out-of-the money

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 15

Theory of CCP risk management

No CCP moral hazard — Away from large member default

CCPs mutualize idiosyncratic default risk (Biais et al., 2012) Efficient margining mitigates shirking by investors (Biais et al., 2016)

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 16

Theory of CCP risk management

No CCP moral hazard — Away from large member default

CCPs mutualize idiosyncratic default risk (Biais et al., 2012) Efficient margining mitigates shirking by investors (Biais et al., 2016)

No CCP moral hazard — Close to large member default

Risk-shifting incentives (Jensen and Meckling 1976, Leland 1998) Strict risk management: Equity impaired, bounded below by zero Lenient risk management: No equity impairment if price reversal

= ⇒ Distortions only close to default; discontinuous behavior

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 17

Theory of CCP risk management

No CCP moral hazard — Away from large member default

CCPs mutualize idiosyncratic default risk (Biais et al., 2012) Efficient margining mitigates shirking by investors (Biais et al., 2016)

No CCP moral hazard — Close to large member default

Risk-shifting incentives (Jensen and Meckling 1976, Leland 1998) Strict risk management: Equity impaired, bounded below by zero Lenient risk management: No equity impairment if price reversal

= ⇒ Distortions only close to default; discontinuous behavior With CCP moral hazard

Good states: Reduce margins → Higher trading volume and fees Bad states: Bailout

= ⇒ Distortions even away from default; no discontinuous behavior

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 18

The market

Paris Commodity Exchange

Futures on sugar, cocoa, coffee Trading through 35 registered brokers → Also clearing members Execute orders on behalf of clients, including retail investors Limited trading by brokers on the own account Short positions: commodity producers; long positions: retail investors

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 19

The market

Paris Commodity Exchange

Futures on sugar, cocoa, coffee Trading through 35 registered brokers → Also clearing members Execute orders on behalf of clients, including retail investors Limited trading by brokers on the own account Short positions: commodity producers; long positions: retail investors

CCP: Caisse de Liquidation des Affaires en Marchandises (CLAM)

All trades centrally cleared → CLAM takes counterparty risk Risk managed by calling initial + variation margins

Initial margins: Paid at initiation of contract Variation margins: Called daily based on price fluctuations

If default on margins: Liquidate member’s position If loss: equity absorbs; no additional waterfall

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 20

The 1974 sugar price boom

  • Nov. 1973 - Nov. 1974: Six fold increase in global sugar prices

1960 1970 1980 1990 2000 2010 1000 2000 3000 4000 5000 6000 World sugar price / ton (in 2016 USD)

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 21

The 1974 sugar crisis

Boom in sugar prices: Until Nov. 21st, 1974

Increase in trading activity: From 54,000 to 1.9m tons / month [See] 96.9% of retail investors hold long positions

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 22

The 1974 sugar crisis

Boom in sugar prices: Until Nov. 21st, 1974

Increase in trading activity: From 54,000 to 1.9m tons / month [See] 96.9% of retail investors hold long positions

Fall in sugar prices: Nov. 21st to Dec. 2nd, 1974

One broker, Nataf, holds 56% of the long open position Limit down prevents execution of sell orders Fails on variation margin calls, CLAM waits until shortfall exceeds initial margins to declare default

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 23

The 1974 sugar crisis

Boom in sugar prices: Until Nov. 21st, 1974

Increase in trading activity: From 54,000 to 1.9m tons / month [See] 96.9% of retail investors hold long positions

Fall in sugar prices: Nov. 21st to Dec. 2nd, 1974

One broker, Nataf, holds 56% of the long open position Limit down prevents execution of sell orders Fails on variation margin calls, CLAM waits until shortfall exceeds initial margins to declare default

Closure of sugar market: Dec. 3rd, 1974 to Jan. 1976

Market closes under pressure of CLAM + registered brokers Negotiation + Judicial battle about loss allocation Resolution of the CLAM, re-open with new CCP

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 24

Archive data

Department of Commerce + Paris Chamber of Commerce

Legal, judicial and statistical documents, notes, confidential reports → Exposures of CLAM, brokers and investors → Account and transactions by Nataf → Financial position on all of Nataf’s clients

Bank of France

Supervisory reports and notes Balance sheet data

Stock price data from Cours authentique et officiel Sugar price data from Les Echos.

Spot/future in Paris, London and New York

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 25

Risk management during the boom

Was risk management lenient during the boom?

Data on all changes in initial margins in 1974

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 26

Initial margin requirements

Initial margin in FRF per ton of sugar

  • Dec. 73
  • Mar. 74
  • Jun. 74
  • Sep. 74
  • Dec. 74

100 200 300 400 500 600 700 800 900 1000 1100 Initial margin (in FRF/ton)

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 27

Initial margin requirements

Initial margin / Nearest-term future sugar price

  • Dec. 73
  • Mar. 74
  • Jun. 74
  • Sep. 74
  • Dec. 74

0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 Initial margin / Nearest-term future price

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 28

Risk management during the boom

Was risk management lenient during the boom?

Data on all changes in initial margins in 1974

Quantity of margins

Initial margins increased, scaled with level of sugar prices

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 29

Risk management during the boom

Was risk management lenient during the boom?

Data on all changes in initial margins in 1974

Quantity of margins

Initial margins increased, scaled with level of sugar prices Volatility not significantly higher [See]

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 30

Risk management during the boom

Was risk management lenient during the boom?

Data on all changes in initial margins in 1974

Quantity of margins

Initial margins increased, scaled with level of sugar prices Volatility not significantly higher [See] Value-at-Risk (VaR) / Initial margin decreasing [See]

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 31

Risk management during the boom

Was risk management lenient during the boom?

Data on all changes in initial margins in 1974

Quantity of margins

Initial margins increased, scaled with level of sugar prices Volatility not significantly higher [See] Value-at-Risk (VaR) / Initial margin decreasing [See] Margins higher than in London and New York

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 32

Risk management during the boom

Was risk management lenient during the boom?

Data on all changes in initial margins in 1974

Quantity of margins

Initial margins increased, scaled with level of sugar prices Volatility not significantly higher [See] Value-at-Risk (VaR) / Initial margin decreasing [See] Margins higher than in London and New York No supervisory concerns about level of margins pre-crisis

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 33

Risk management during the boom

Was risk management lenient during the boom?

Data on all changes in initial margins in 1974

Quantity of margins

Initial margins increased, scaled with level of sugar prices Volatility not significantly higher [See] Value-at-Risk (VaR) / Initial margin decreasing [See] Margins higher than in London and New York No supervisory concerns about level of margins pre-crisis

Quality of margins

Margins paid in cash or with bank guarantees (letters of credit)

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 34

Quality of margins

Balance on CCP account = Deposited capital + External bank guarantees −Initial margins − Variation margins

  • Sep. 5
  • Sep. 23
  • Oct. 9
  • Oct. 25
  • Nov. 14
  • Dec. 2
  • 250
  • 200
  • 150
  • 100
  • 50

50 100 150 Assets / Liabilities (in million FRF)

Deposited capital + bank guarantees Bank guarantees Initial margins Initial + variation margins Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 35

Risk management during the boom

Was risk management lenient during the boom?

Data on all changes in initial margins in 1974

Quantity of margins

Initial margins increased, scaled with level of sugar prices Volatility not significantly higher Value-at-Risk (VaR) / Initial margin decreasing Margins higher than in London and New York No supervisory concerns about level of margins pre-crisis

Quality of margins

Margins paid in cash or with bank guarantees (letters of credit) Nataf’s account: Cash increases from 40.1% to 67.8% of margins

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 36

Risk management during the boom

Was risk management lenient during the boom?

Data on all changes in initial margins in 1974

Quantity of margins

Initial margins increased, scaled with level of sugar prices Volatility not significantly higher Value-at-Risk (VaR) / Initial margin decreasing Margins higher than in London and New York No supervisory concerns about level of margins pre-crisis

Quality of margins

Margins paid in cash or with bank guarantees (letters of credit) Nataf’s account: Cash increases from 40.1% to 67.8% of margins

Inconsistent with significantly weaker risk management

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 37

Event study: increases in initial margins

12 changes in margins in 1974, including 9 increases

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 38

Event study: increases in initial margins

12 changes in margins in 1974, including 9 increases CLAM is listed: 10 years of daily stock price data [See]

Pro: Higher margins → Less CCP risk Con: Higher margins → Less trading volume & clearing fees

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 39

Event study: increases in initial margins

12 changes in margins in 1974, including 9 increases CLAM is listed: 10 years of daily stock price data [See]

Pro: Higher margins → Less CCP risk Con: Higher margins → Less trading volume & clearing fees

Stock price around increases in initial margins (denoted τ) ARit = Rit − ˆ Rit where ˆ Rit = ˆ αi + ˆ βiRmt.

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 40

Event study: increases in initial margins

12 changes in margins in 1974, including 9 increases CLAM is listed: 10 years of daily stock price data [See]

Pro: Higher margins → Less CCP risk Con: Higher margins → Less trading volume & clearing fees

Stock price around increases in initial margins (denoted τ) ARit = Rit − ˆ Rit where ˆ Rit = ˆ αi + ˆ βiRmt. Cumulative abnormal return from τ − 5 to τ + 5 ¯ CAR(τ − 5, ¯ τ) =

¯ τ

  • t=τ−5
  • 1

N

N

  • i=1

ARit

  • .

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 41

Event study: increases in initial margins

Cumulative abnormal 95% confidence p-value return interval τ − 5

  • 0.001

[ -0.014 ; 0.011 ] 0.590 τ − 4 0.001 [ -0.020 ; 0.021 ] 0.471 τ − 3

  • 0.000

[ -0.021 ; 0.020 ] 0.521 τ − 2

  • 0.004

[ -0.028 ; 0.020 ] 0.658 τ − 1

  • 0.000

[ -0.028 ; 0.028 ] 0.504 τ 0.006 [ -0.025 ; 0.036 ] 0.336 τ + 1 0.006 [ -0.025 ; 0.036 ] 0.331 τ + 2 0.013∗ [ -0.009 ; 0.035 ] 0.097 τ + 3 0.017∗∗ [ 0.001 ; 0.034 ] 0.022 τ + 4 0.013∗ [ -0.005 ; 0.032 ] 0.067 τ + 5 0.023∗∗∗ [ 0.007 ; 0.039 ] 0.006 2.3% cumulative abnormal return after 5 days

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 42

Event study: increases in initial margins

Cumulative abnormal 95% confidence p-value return interval τ − 5

  • 0.001

[ -0.014 ; 0.011 ] 0.590 τ − 4 0.001 [ -0.020 ; 0.021 ] 0.471 τ − 3

  • 0.000

[ -0.021 ; 0.020 ] 0.521 τ − 2

  • 0.004

[ -0.028 ; 0.020 ] 0.658 τ − 1

  • 0.000

[ -0.028 ; 0.028 ] 0.504 τ 0.006 [ -0.025 ; 0.036 ] 0.336 τ + 1 0.006 [ -0.025 ; 0.036 ] 0.331 τ + 2 0.013∗ [ -0.009 ; 0.035 ] 0.097 τ + 3 0.017∗∗ [ 0.001 ; 0.034 ] 0.022 τ + 4 0.013∗ [ -0.005 ; 0.032 ] 0.067 τ + 5 0.023∗∗∗ [ 0.007 ; 0.039 ] 0.006 2.3% cumulative abnormal return after 5 days Inconsistent with large moral hazard

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 43

Risk management before distress

  • Nov. 21st, 1974: Sugar prices collapse → Severe distortions

Nataf’s balance turns negative

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 44

Risk management before distress

  • Nov. 21st, 1974: Sugar prices collapse → Severe distortions

Nataf’s balance turns negative

CLAM delays declaration of Nataf’s default

First days: Unclear whether shortfall due to operational delays Later: Clear that shortfall due to unusual price movements → Liquidation of defaulted position also delayed

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 45

Risk management before distress

  • Nov. 21st, 1974: Sugar prices collapse → Severe distortions

Nataf’s balance turns negative

CLAM delays declaration of Nataf’s default

First days: Unclear whether shortfall due to operational delays Later: Clear that shortfall due to unusual price movements → Liquidation of defaulted position also delayed

CLAM continues to register trades by Nataf

In contradiction with CLAM rule book

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 46

Risk management before distress

  • Nov. 21st, 1974: Sugar prices collapse → Severe distortions

Nataf’s balance turns negative

CLAM delays declaration of Nataf’s default

First days: Unclear whether shortfall due to operational delays Later: Clear that shortfall due to unusual price movements → Liquidation of defaulted position also delayed

CLAM continues to register trades by Nataf

In contradiction with CLAM rule book

→ CLAM is acting to protect Nataf

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 47

Distorted incentives of brokers

Outside distress: Brokers indifferent to execution prices for clients

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 48

Distorted incentives of brokers

Outside distress: Brokers indifferent to execution prices for clients Close to distress: Some clients pay margins, some close to default

Data on all trades excuted by Nataf on behalf of clients Data on the financial position of all of Nataf’s clients

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 49

Distorted incentives of brokers

Outside distress: Brokers indifferent to execution prices for clients Close to distress: Some clients pay margins, some close to default

Data on all trades excuted by Nataf on behalf of clients Data on the financial position of all of Nataf’s clients

Distorted incentives: Better execution for clients close to default

  • Exec. pricei,j,m,t = β0·Exposurei,t+β1·Volumei,j,m,t+FEm+FEt+ǫi,j,m,t

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 50

Distorted incentives of brokers

Outside distress: Brokers indifferent to execution prices for clients Close to distress: Some clients pay margins, some close to default

Data on all trades excuted by Nataf on behalf of clients Data on the financial position of all of Nataf’s clients

Distorted incentives: Better execution for clients close to default

  • Exec. pricei,j,m,t = β0·Exposurei,t+β1·Volumei,j,m,t+FEm+FEt+ǫi,j,m,t

Channel

Trades registered at the CLAM at the end of the day Rearrange counterparties and prices before novation

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 51

Distorted incentives of brokers

Dependent variable: Execution price of buy orders

  • Avg. exec. price
  • 0.020∗∗
  • 0.016∗
  • f existing trades

(0.028) (0.057) Size of existing

  • 0.279∗∗∗
  • 0.247∗∗∗

position (0.000) (0.000) Volume of trade

  • 0.185∗∗∗
  • 0.097∗∗

(0.000) (0.027)

  • N. Obs.

69 69 74 74 R2 0.993 0.995 0.995 0.995 Fixed effects D, MAT D, MAT D, MAT D, MAT Investors close to default get better execution prices

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 52

Distorted incentives of brokers

Dependent variable: Execution price of buy orders

  • Avg. exec. price
  • 0.020∗∗
  • 0.016∗
  • f existing trades

(0.028) (0.057) Size of existing

  • 0.279∗∗∗
  • 0.247∗∗∗

position (0.000) (0.000) Volume of trade

  • 0.185∗∗∗
  • 0.097∗∗

(0.000) (0.027)

  • N. Obs.

69 69 74 74 R2 0.993 0.995 0.995 0.995 Fixed effects D, MAT D, MAT D, MAT D, MAT Investors close to default get better execution prices Results consistent, but not significant, for sell orders

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 53

Distortions after default

After Nataf default, other brokers close to default

CLAM + brokers ask minister to close the market (Dec. 3rd) Attempts to re-open fail

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 54

Distortions after default

After Nataf default, other brokers close to default

CLAM + brokers ask minister to close the market (Dec. 3rd) Attempts to re-open fail

Article 22 sets a settlement price if closure

Settlement at the average price over past 20 trading days Here: 7,400 FRF per ton, above price on Dec. 2nd, 6,200 FRF Closure highly debatable → Risky bet

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 55

Distortions after default

After Nataf default, other brokers close to default

CLAM + brokers ask minister to close the market (Dec. 3rd) Attempts to re-open fail

Article 22 sets a settlement price if closure

Settlement at the average price over past 20 trading days Here: 7,400 FRF per ton, above price on Dec. 2nd, 6,200 FRF Closure highly debatable → Risky bet

CLAM refuses renegotiation with sugar professionals

Refuses proposal to buy Nataf’s position at 6,200 FRF Refuses proposal at 5,700 FRF (Varsano proposal)

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 56

Distortions after default

After Nataf default, other brokers close to default

CLAM + brokers ask minister to close the market (Dec. 3rd) Attempts to re-open fail

Article 22 sets a settlement price if closure

Settlement at the average price over past 20 trading days Here: 7,400 FRF per ton, above price on Dec. 2nd, 6,200 FRF Closure highly debatable → Risky bet

CLAM refuses renegotiation with sugar professionals

Refuses proposal to buy Nataf’s position at 6,200 FRF Refuses proposal at 5,700 FRF (Varsano proposal)

Push for Article 22 → Manipulate settlement price

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 57

Risk-shifting

All losses absorbed through equity

No additional waterfall resources

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 58

Risk-shifting

All losses absorbed through equity

No additional waterfall resources

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

slide-59
SLIDE 59

Risk-shifting

All losses absorbed through equity

No additional waterfall resources

Distortions are evidence of risk-shifting

If strict: Equity takes losses, bounded below by zero If lenient: No equity losses if price reversal

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 60

Risk-shifting

All losses absorbed through equity

No additional waterfall resources

Distortions are evidence of risk-shifting

If strict: Equity takes losses, bounded below by zero If lenient: No equity losses if price reversal

Push for market closure also gamble for resurrection

No Article 22: Equity takes losses, bounded below by zero If Article 22: No default by Nataf, no equity losses

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 61

Risk-shifting

All losses absorbed through equity

No additional waterfall resources

Distortions are evidence of risk-shifting

If strict: Equity takes losses, bounded below by zero If lenient: No equity losses if price reversal

Push for market closure also gamble for resurrection

No Article 22: Equity takes losses, bounded below by zero If Article 22: No default by Nataf, no equity losses

CLAM close to region where equity value function is convex

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 62

CLAM equity value

5600 5800 6000 6200 6400 6600 6800 7000 7200 7400 Settlement price (FRF / ton)

  • 60
  • 50
  • 40
  • 30
  • 20
  • 10

10 20 30 40 CLAM equity value (in million FRF) Varsano proposal Price Dec. 2 Price Art. 22 Nataf defaults

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 63

Risk-shifting

All losses absorbed through equity

No additional waterfall resources

Distortions are evidence of risk-shifting

If strict: Equity takes losses, bounded below by zero If lenient: No equity losses if price reversal

Push for market closure also gamble for resurrection

No Article 22: Equity takes losses, bounded below by zero If Article 22: No default by Nataf, no equity losses

CLAM close to region where equity value function is convex → Risk-shifting likely to be a more general feature of CCPs

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 64

Conclusion and policy implications

Disruptions of clearing can occur without large moral hazard

Due to unusual price changes Low equity → Risk-shifting incentives + limited renegotiation set

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 65

Conclusion and policy implications

Disruptions of clearing can occur without large moral hazard

Due to unusual price changes Low equity → Risk-shifting incentives + limited renegotiation set

Better CCP capitalization reduces risk-shifting incentives

Better capitalization makes negotiated recovery more likely But: In distress, CCP equity value sensitive to settlement prices Unlikely to reach capitalization level that rule out risk-shifting

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 66

Conclusion and policy implications

Disruptions of clearing can occur without large moral hazard

Due to unusual price changes Low equity → Risk-shifting incentives + limited renegotiation set

Better CCP capitalization reduces risk-shifting incentives

Better capitalization makes negotiated recovery more likely But: In distress, CCP equity value sensitive to settlement prices Unlikely to reach capitalization level that rule out risk-shifting

Better CCP governance can reduce risk-shifting

More power to members that attach greater value to continuation Member-owned CCPs likely to prefer continuation Rules versus discretion: less likely to delay default

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 67

Policy implications: Default waterfalls

Default waterfall

Tranches of equity Members junior to residual equity (CoCo-like)

Equity Out-of-the-money transactions In-the-money transactions Other assets

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 68

Policy implications: Default waterfalls

Default waterfall

Tranches of equity Members junior to residual equity (CoCo-like)

Mitigate risk-shifting

Equity not only residual claimant

Equity Out-of-the-money transactions In-the-money transactions Other assets

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 69

Policy implications: Default waterfalls

Default waterfall

Tranches of equity Members junior to residual equity (CoCo-like)

Mitigate risk-shifting

Equity not only residual claimant

Equity Out-of-the-money transactions In-the-money transactions Other assets

Increase renegotiation set

Lower sensitivity of equity to settlement prices

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 70

Policy implications: Default waterfalls

Default waterfall

Tranches of equity Members junior to residual equity (CoCo-like)

Mitigate risk-shifting

Equity not only residual claimant

Equity Out-of-the-money transactions In-the-money transactions Other assets

Increase renegotiation set

Lower sensitivity of equity to settlement prices

Trade-off with skin-in-the-game

Optimal design is open question

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 71

For more entertainment

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 72

Appendix

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 73

New transactions registered — Sugar

1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 200 400 600 800 1000 1200 1400 1600 1800 2000 New transactions registered (x 1000 tons)

[Back]

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 74

New transactions registered — Coffee and cocoa

1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 50 100 150 200 New transactions registered - Cocoa (x 1000 tons) 10 20 30 New transactions registered - Coffee (x 1000 tons)

Cocoa Coffee Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 75

CLAM stock price — 1966-1975

1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 50 100 150 200 250 300 Stock price of CLAM (in FRF)

[Back]

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 76

CLAM stock price around failure

  • Dec. 73
  • Mar. 74

Jun.74

  • Sep. 74

Dec.74

  • Mar. 75

50 100 150 200 250 300 Stock price of CLAM (in FRF)

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 77

Daily returns on nearest-term contract

Volatility of sugar prices not markedly higher

  • Dec. 73
  • Jun. 74
  • Dec. 74
  • 0.2
  • 0.15
  • 0.1
  • 0.05

0.05 0.1 0.15 0.2 Daily returns on nearest-term sugar future

[Back]

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 78

Valut-at-Risk (VaR)

98% VaR / Initial margin requirement is decreasing

  • Dec. 73
  • Jun. 74
  • Dec. 74

0.2 0.4 0.6 0.8 1 98% Value-at-Risk / Initial margin requirement

[Back]

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 79

Open position

1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 500 1000 Open position (in million FRF) 200 400 600 800 Open position (x 1000 tons)

In million FRF In 1000 tons Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence

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SLIDE 80

Open position / Market capitalization

1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 5 10 15 20 25 30 35 Open position / CLAM market capitalisation

Vincent Bignon, Guillaume Vuillemey The Failure of a Clearinghouse:Empirical Evidence