econ finance
TRANSCRIPT
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Page 1Economic and Financial Perspectives on the Demand for Reinsurance
Economic and Financial Perspectives
on the Demand for Reinsurance
James R. Garven and Joan Lamm-TennantHankamer School of Business, Baylor University
GeneralCologne Re
Finance Department WorkshopFebruary 14, 2003
Chapter 10 in Rational Reinsurance Buying, Nick Golden (editor),
London: Risk Books (January 2003), pp. 163-186.
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Page 2Economic and Financial Perspectives on the Demand for Reinsurance
Corporate Risk Management Todays seminar kicks off our spring 2003 workshop series, which is organized
around the theme "Corporate Risk Management". Primary insight: Risk management policy and financing policy are
complementary. This complementarityis captured by the term integrated riskmanagement. Integrated risk management from the medias perspective:
"The business of financing companies is converging with the business of insuring them."
(see "The New Financiers," The Economist, September 2, 1999). Integrated risk management from the finance professions perspective:
Froot, K. A., D. S. Scharfstein and J. C. Stein, 1993, "Risk Management: CoordinatingCorporate Investment and Financing Policies",Journal of Finance, 48 (Dec.), pp. 1629-58(hereafter, FSS)
Brealey, Richard A. and Stewart C. Myers (2002). Financing and Risk Management. NewYork: McGraw Hill.
Integrated risk management from the risk management professions perspective : Garven, J. R. and R. D. MacMinn, 1993, "The Underinvestment Problem, Bond Covenants
and Insurance",Journal of Risk and Insurance, 60 (Dec.), pp. 635-46.
Doherty, N. A. (2000). Integrated Risk Management: Techniques and Strategies forManaging Corporate Risk. New York: McGraw-Hill (required textbook for FIN/RMI 4335and FIN/RMI 5335).
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Page 3Economic and Financial Perspectives on the Demand for Reinsurance
Under what conditions is risk management irrelevant?
In a frictionless economy, risk management is a pointlessactivity.
Shareholders can adjust the risk profile of their portfolios bydiversifying or shifting their assets.
Healthy companies that suffer unwelcome financial shocks can always
approach the capital markets for funding. Adverse shocks to a company's cash flow typically create
indirect costs.
These costs might stem from the threat of costly bankruptcy andfinancial distress, the difficulties of raising funds to finance corporate
strategies or the consequences of these shocks to stakeholders.
Risk management can help lessen these threats and therebyboost and sustain the value of the company.
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Page 4Economic and Financial Perspectives on the Demand for Reinsurance
Under what conditions is risk management irrelevant?
Proposition 1: Risk management is irrelevant if and only if
there are no market frictions; e.g., transaction costs, taxes, regulations, etc., there is no moral hazard, and there is no adverse selection.
Proof. Suppose the above conditions hold. The firm may alter its risk profile by transferring risk to or from a counterparty. Investors may also alter their risk profiles by trading the firms shares along with the
shares of other firms. Suppose the firm seeks to reduce the risk of its shares by transferring risk to a
counterparty. While some investors might approve of such a change, others might have an
appetite for more risk that can be satisfied by buying shares in other riskier firms. Since investor risk management is a perfect substitute for corporate risk
management, shares of firms that differ only with respect to risk managementpolicy must sell for the same price Otherwise, arbitrage profits are available by shorting the (relatively) undervalued shares
and going long in the (relatively) overvalued shares.
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Page 5Economic and Financial Perspectives on the Demand for Reinsurance
Under what conditions is risk management relevant?
What happens to the theory of corporate risk management if
Proposition 1 assumptions are violated? We will show how violations of Proposition 1 assumptions
represent sufficient conditions in order for corporate riskmanagement to matter.
Alternative Hypotheses Asymmetric taxes (due to progressive marginal tax rates as well
as incomplete tax loss offsets)
Direct and indirect costs related to financial distress (e.g., costsof bankruptcy and moral hazard).
Asymmetric information (adverse selection)
Role of managerial compensation contract design
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Page 6Economic and Financial Perspectives on the Demand for Reinsurance
Implications of Proposition 1 assumption violations
1. Firm-specific risk affects the value of the corporation
Consequently, diversification may be of some value as a corporate risk managementstrategy.
2. Firm-specific risk matters irrespective of the nature of investor riskpreferences What matters is the impact of risk upon the firms tax exposure, magnitude of transaction
and agency costs.
3. Risk management and financing policies have complementary
economic and financial consequences. Coordination of financial and risk management policies enables the firm to expand its debt
capacity (cf. FSS (1993) and GM (1993)).
4. Risk management is the unifying principle for all business managementdisciplines (not just finance, economics, and RMI). E.g., marketing may be viewed as a risk management strategy to manage uninsurable
business risks such as loss of competitive position, product substitution and obsolescence.
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Asymmetric Taxes
Consider corporate tax effects.
In most industrialized countries, corporate income tax rates arestate contingent, varying as a function of the level of income;typically, dt/dp > 0 (aka the progressive tax rate problem).
Tax authorities typically limit the firms ability to deduct the full
value of corporate losses (aka the incomplete tax loss offsetproblem).
Mathematically, these features imply that firms face non-linear,or convex tax schedules in which varying marginal tax ratesintroduce a firm-specific source of risk; typically, a risk more
effectively managed by the firm than by its shareholders.
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Economic and Financial Perspectives on the Demand for Reinsurance
Tax Convexity
Definition of tax convexity(Jensens Inequality):
If a functionf(x) is convex, thenE(f(x)) >f(E(x)).
Taxes are convex because the tax on fully hedged
incomef(E(x)) is less than the tax on unhedged income(E(f(x)).
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Economic and Financial Perspectives on the Demand for Reinsurance
Tax Linearity
A B C
T(A)
T(C)
E(tax) = T(B)
$
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Economic and Financial Perspectives on the Demand for Reinsurance
Tax Convexity
Corporate Earnings
Taxes
payable
A B C
T(A)
T(B)
T(C)
E(Tax) =.5T(A)+.5T(C)
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Economic and Financial Perspectives on the Demand for Reinsurance
Tax Convexity Numerical ExampleStrategy 1: Retain Risk
LossOutcome
Probability Taxable Income Taxes After-Tax Income
No Loss 50% $1,000,000 $350,000 $650,000Loss 50% $500,000 $75,000 $425,000
Strategy 2: Transfer (Insure) Risk
LossOutcome
Probability Taxable Income Taxes After-Tax Income
No Loss 50% $750,000 $187,500 $562,500
Loss 50% $750,000 $187,500 $562,500
Comparing the two risk management strategies listed above, the effect of insuring risk is tosimultaneously reduce the volatility and increase the expected value of after-tax income:
Strategy 1 Expected Taxable Income = 50% $1,000,000 50% $500,000 = $750,000.
Strategy 1 Expected Taxes = 50% $350,000 50% $75,000 = $212,500.
Strategy 1 Expected After-Tax Income = 50% $650,000 50% $425,000 = $537,500.
Strategy 2 Expected Taxable Income = 50% $750, 000 50% $750, 000 = $750,000.
Strategy 2 Expected Taxes = 50% $187,500 50% $187,500 = $187,500.
Strategy 2 Expected After-Tax Income = 50% $562,500 50% $562,500 = $562,500.
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Economic and Financial Perspectives on the Demand for Reinsurance
The Incomplete Tax Loss Offset Problem
Incomplete tax loss offsets make the problem evenworse.
Tax-loss offsets are incomplete in the sense that firmsare limited in their ability to write off, for tax purposes,
the full value of corporate losses. Thus gains are taxedat a higher rate than losses are rebated.
The government holds a fractional position in a calloption on the firm's assets; this options exercise price is
the sum of the promised payment to bondholders plusother tax write-offs (typically items such as depreciationallowances).
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Economic and Financial Perspectives on the Demand for Reinsurance
Payoff to the Government (T1)
$
BY1
1
Y
B
T1 = tMax[Y1-TS,0]
TS
TS
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Page 14Economic and Financial Perspectives on the Demand for Reinsurance
After-tax Payoffs to Bondholders (D1) andShareholders (S1-T1)
$
BY1
1Y
B
T1
TS
TS S1
D1
S-T1 1
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Page 15Economic and Financial Perspectives on the Demand for Reinsurance
Tax Convexity in the Real World
Tax convexity in the real world is quite a bit more
complicated than in our numerical example, and itcan vary significantly from firm to firm.
For any given firm, the degree of tax convexitydepends not only upon the schedule of marginaltax rates published by the tax authorities, but alsoupon a number of firm-specific characteristics,including past, present and future expected profitability, whether the firm is subject to the alternative minimum
tax, and whether the firm has any investment tax credits or net
operating loss carrybacks and carryforwards.
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Page 16Economic and Financial Perspectives on the Demand for Reinsurance
Direct Costs of Financial Distress
If a firm goes bankrupt under the U.S. Bankruptcy
law, the costs of distributing its assets fall on thecreditors of the firm ex post.
Legal fees
Court fees Accounting Costs
Incentive costs for managers under bankruptcy courtreview might be different than profit maximizing contracts
entered into prior to bankruptcy. These constitute the direct and indirect costs of
bankruptcy.
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Page 17Economic and Financial Perspectives on the Demand for Reinsurance
Even if the firm doesnt fail, there are indirect costs
related to financial distress.
Underinvestment. Because owners and creditors shareunequally (asymmetrically) in gains and losses,
circumstances may arise where firms (in the absence ofproper risk management) may rationally reject positiveNPV projects.
Risk Shifting(asset substitution). Risk management can
mitigate the risk shifting problem by reducingex antethepotential benefits that can be gained by increasing therisk of the firm after a debt issue.
Indirect Costs of Financial Distress
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Page 18Economic and Financial Perspectives on the Demand for Reinsurance
Underinvestment Problem
State Pr(s) L(s) Vu(s)=-L(s) I(s) Vr(s)=-I(s)no loss 50% $1000 $0 $1000 $0 $1000
loss50% $1000 $800 $200 $600 $400
value now $1000 $400 $600 $300 $700
The Unlevered, Uninsured Firm
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Page 19Economic and Financial Perspectives on the Demand for Reinsurance
The Levered, Uninsured Firm (B=$700)
State Pr(s) L(s) Du(s) Su(s) I(s) Dr(s) Sr(s)no loss 50% $1000 $0 $700 $300 $0 $700 $300
loss 50% $1000 $800 $200 $0 $600 $400 $0value now $1000 $400 $450 $150 $300 $550 $150
Underinvestment Problem (Contd.)
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Page 20Economic and Financial Perspectives on the Demand for Reinsurance
Levered, Insured Firm (Bc=$500 & d=$500)
State Pr(s) L(s) I(s) pc(s) = I(s)-d *= -I(s)+pc(s) Dc(s) Sc(s)no loss 50% $1,000 $0 $0 $0 $1,000 $500 $500
loss 50% $1,000 $800 $600 $100 $500 $500 $0value now $1,000 $400 $300 $50 $750 $500 $250
Underinvestment Problem (Contd.)
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Page 21Economic and Financial Perspectives on the Demand for Reinsurance
Effect of Transaction Costs (Bl = $600 & d = $400)
State Pr(s) L(s) I(s) pl(s) = I(s)-d *=-I(s) + pl(s) Dl(s) Sl(s)no loss 50% $1,000 $0 $0 $0 $1,000 $600 $400
Loss 50% $1,000 $800 $600 $200 $600 $600 $0value now $1,000 $400 $300 $100 $800 $600 $200
Underinvestment Problem (Contd.)
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Page 22Economic and Financial Perspectives on the Demand for Reinsurance
Who pays agency and bankruptcy costs?
Shareholders bear these costs ex ante.
Bondholders know that if the firm has anasymmetric payoff structure, there is a moral hazardproblem, in that shareholders benefit from rippingoff bondholders!
In the absence of legally enforceable guaranteesagainst such moral hazards, bondholders have nochoice but to discount bond prices to account for
this risk. Consequently, the cost of debt is higher tosuch a firm.
Ex ante, firms want to convince potential bondinvestors that the likelihood of bankruptcy is low.
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Page 23Economic and Financial Perspectives on the Demand for Reinsurance
Why Does Risk Management Matter - Summary
Why does risk management matter? Answers sofar include:
Asymmetric taxes
Bankruptcy risk and related costs
Bankruptcy costs include direct costs of thebankruptcy process (e.g., legal fees, accountingfees and court costs), plus indirect costs such as
value foregone due to suboptimal contracting. Lowering bankruptcy risk also reduces costs
related to other agency problems such asunderinvestment and asset substitution.
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Page 24Economic and Financial Perspectives on the Demand for Reinsurance
Pre- versus Post-loss Financing Suppose a firm suffers a loss involving the destruction of a
physical asset such as a manufacturing facility. Rebuilding (reinvestment) will make sense only if the NPV of
the rebuilt facility is positive and greater than any otheralternative use of the capital.
Reinvestment can be financed two ways:
Post-loss methods typically involve the use of traditional debt andequity instruments to finance rebuilding costs.
Post-loss methods incur costs due to adverse selection andmoral hazard.
Pre-loss methods involve the use of insurance or some other formof hedging.
the firm must commit cash up front; there also may betransaction costs incurred in implementing the hedge.
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Page 25Economic and Financial Perspectives on the Demand for Reinsurance
Pre- versus Post-loss Financing
The decision to use pre- or post-loss financing comes
down to comparing the marginal costs and benefits ofeach approach.
One benefit of pre-loss versus post-loss financing is
that pre-loss financing guarantees liquidity at a futuredate on favorable terms.
Following a loss, the unhedged firm might experiencedifficulty raising additional capital on favorable terms.
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Page 26Economic and Financial Perspectives on the Demand for Reinsurance
Pecking Order Theory Adverse selection in equity markets
Announcement of a secondary stock offering drives down theprices of currently outstanding shares because investors believemanagers are more likely to issue equity when existing sharesare overpriced.
This represents an adverse selection problem in the equitymarket!
Therefore firms prefer internal equity since funds can beraised without conveying adverse signals; consequently,internal equity is a cheaper source of financing than
external equity. If external financing is required, firms issue debt first
and equity as a last resort (because there is less room fordifferences in opinion about what debt is worth).
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Pecking Order Theory of Risk Mgmt.
Now suppose an unhedged firm suffers a lossof liquidity (e.g., a major manufacturingfacility is destroyed).
The loss in liquidity curtails the firms
internally financed investment projects.
This results in a real economic loss to thefirm.
Risk management policies should ensure thata company always has the cash available tomake value-enhancing investments.
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Managerial Compensation Contract Design
Agency costs exist because managers do not
necessarily have the same objectives asshareholders. Stockholders prefer that managers maximize (the
risk-adjusted discounted value of) profits. Managers are interested in maximizing expected
utility.
We can devise a management compensation
scheme that attempts to reconcile theseconflicting objectives. Managers also bear corporate risks and therefore
need to be properly compensated for risk bearing.
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Page 29Economic and Financial Perspectives on the Demand for Reinsurance
Risk and Managers
Risk averse managers have natural
incentives to reduce their firm's exposureto risk.
The manager is often not well-diversifiedsince her human and financial capital maybe closely tied to the firms financial
performance.
Thus a risk averse manager may use hedgingto reduce her exposure to corporate riskeven if it does not increase firm value.
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Designing a Managerial Compensation Contract
Assume that shareholders are risk neutral, but the
manager is risk averse with utility U = W.5. Assume that interest rates are zero; thus the value of
the firms shares is simply the expected value ofcorporate net cash flow.
Irrespective of the manner in which the contract isstructured, the firm must offer the manager acompetitive salary package. Suppose that competitive managerial labor market conditions
imply that competitive certainty equivalent salary is $300,000per year.
Thus the compensation contract must provide the managerwith expected utility of at least U($300,000) = $300,000.5 =547.72.
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Page 31Economic and Financial Perspectives on the Demand for Reinsurance
Now suppose an all-equity firms value
will be $500 million or
$1000 million
each with a 1/2 probability
If hedged the firms value will be $780
million; thus the hedge has a positive NPVof $30 million.
Will the manager find it in her self-interest toimplement this hedge?
Designing a Managerial Compensation Contract
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Designing a Managerial Compensation Contract Consider three alternative managerial compensation contractsa
fixed salary, direct share ownership, and executive stock options.1. Fixed salary of $300,000 causes the manager to be indifferent
about implementing the hedge because the decision to hedgedoes not affect her welfare.
2. Direct share ownership. Manager receives a portion (x) ofvalue of earnings and no salary. This incentive scheme mustprovide expected utility of at least U($300,000)=547.72. Solvefor x:
547.72 < 0.5(500,000,000x)0.5 + 0.5(1,000,000,000x)0.5
1095.45 < (500,000,0000.5 + 1,000,000,0000.5)(x)0.51095.45 < 53983.46 (x)0.5
0.02029 < x0.5
x > 0.000412.
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Designing a Managerial Compensation Contract
2. Direct share ownership (continued) Therefore, lets assume that the manager receives .0412%
of the firm.
With the hedge E(U) = ( x*$780 Mill).5 = (0.000412 *$780
Mill).5
= 566.89. Without the hedge E(U) =.5(0.000412*500M ).5
+.5(0.000412*1000M).5 = 547.72.
Thus, E(U) is higher w/ hedge and shareholders are also
better off; consequently the direct share ownershipscheme is superior to the flat salary scheme, since it doesa better job of aligning shareholder and managerialincentives.
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Stock option assumptions: Manager receives no salary nor shares of stock. There are 10 million shares outstanding; consequently, the value of a
share of stock is either $50 or $100.
Manager receives options to purchase 60,000 shares of stock at a price of$80 per share.
The expected profit per option isE(profit) =.5*(Max(share price-$80,$0) =.5*($0)+.5*($20)=$10.
The expected profit and utility from holding options topurchase 60,000 shares are:E(profit) =.5(0 x 60,000) + .5($20 x 60,000) = $600,000, and
E(U) =.5(0 x 60,000).5 + .5($20 x 60,000).5 = 547.72.
The optimal decision here is to not hedge, because E(U) ishigher without the hedge (547.72) than with it (0).
Designing a Managerial Compensation Contract
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Summary of Numerical Example
Type of contract Contract Design Expected Utility What to do?
Fixed Salary Fixed Salary of$300,000
EU = 547.72 nomatter what
Indifferent betweenhedging and nothedging
Direct ShareOwnership
Manager owns x =.00412% of the firm
EU = 566.89 withhedging; EU =
547.72 withouthedging
Hedge
Options Manager ownsoption to purchase60,000 shares ofstock, exercise price
of $80.
EU = 0 withhedging; EU =547.72 withouthedging;
Dont Hedge
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Some What ifs on CompensationCEQ Income $300,000
U(Wceq) 547.7226
# Shares 10,000,000Risk Aversion Coefficient 0.5
Option 1 Exercise Price $80
Option 2 Exercise Price $70
Option 3 Exercise Price $60
Fixed Salary Share Ownership Option 1 Option 2 Option 3
Salary $300,000 $0 $0 $0 $0
Ownership fraction 0.0000% 0.0412% 0.0000% 0.0000% 0.0000%Options 0 0 60,000 40,000 30,000
No Hedge
p(s) V(s) U(V(s)) U(V(s)) U(V(s)) U(V(s)) U(V(s))
50% $500,000,000 547.7226 453.7482 0.0000 0.0000 0.0000
50% $1,000,000,000 547.7226 641.6969 1095.4451 1095.4451 1095.4451
547.7226 547.7226 547.7226 547.7226 547.7226
HedgePrice $220,000,000
p(s) V(s) U(V(s)) U(V(s)) U(V(s)) U(V(s)) U(V(s))
50% $780,000,000 547.7226 566.7313 0.0000 565.6854 734.8469
50% $780,000,000 547.7226 566.7313 0.0000 565.6854 734.8469
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Some What Ifs on CompensationCEQ Income $300,000
U(Wceq) 547.7226
# Shares 10,000,000Risk Aversion Coefficient 0.5
Option 1 Exercise Price $80
Option 2 Exercise Price $70
Option 3 Exercise Price $60
Fixed Salary Share Ownership Option 1 Option 2 Option 3
Salary $300,000 $0 $0 $0 $0
Ownership fraction 0.0000% 0.0412% 0.0000% 0.0000% 0.0000%Options 0 0 60,000 40,000 30,000
No Hedge
p(s) V(s) U(V(s)) U(V(s)) U(V(s)) U(V(s)) U(V(s))
50% $500,000,000 547.7226 453.7482 0.0000 0.0000 0.0000
50% $1,000,000,000 547.7226 641.6969 1095.4451 1095.4451 1095.4451
547.7226 547.7226 547.7226 547.7226 547.7226
HedgePrice $280,000,000
p(s) V(s) U(V(s)) U(V(s)) U(V(s)) U(V(s)) U(V(s))
50% $720,000,000 547.7226 544.4979 0.0000 282.8427 600.0000
50% $720,000,000 547.7226 544.4979 0.0000 282.8427 600.0000
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Managerial Compensation Summary
Firms that offer incentive (direct shareownership) compensation are likely to hedgerisk.
Firms that offer flat salary may still hedge,but the incentives to do so are weaker (sincethe linkage between utility and risk isindirect).
Managers paid in stock options are not likelyto hedge.
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Page 39Economic and Financial Perspectives on the Demand for Reinsurance
Managerial Compensation Summary
From a risk sharing view, it makes sense formanagers to be paid salaries and for risk to beprimarily borne by shareholders.
However, from an incentive view, it makes sense to
align interests of shareholders and managers in theform of incentive compensation.
This trade-off can be at least partially avoided if thefirm hedges risks that are largely outside managerial
control. This permits firms to use incentive compensation
without unnecessarily burdening managers with risksthat are outside their control.
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Empirical Predictions
Keep in mind the theoretical arguments wehave advanced:
Risk management can add value by reducing
taxes. Risk management can add value by reducing the
cost of financial distress.
Risk management can add value by facilitating
optimal investment.
Whether the firm manages risk depends upon thenature of the managerial compensation contract.
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Empirical Findings
Risk management to reduce taxes
Dolde (1995) reports a statistically significantpositive relationship between tax loss carryforwards and the use of risk management
instruments. Nance, Smith & Smithson (1993) and Mian (1994)
find a statistically significant positive relationshipbetween tax credits and the use of risk
management instruments. Garven and Lamm-Tennant (2000) show that the
demand for reinsurance is greater for insurers thatinvest in tax-exempt securities.
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Empirical Findings
Risk management to reduce the cost of financialdistress.
Dolde and Samant (1996) find a statistically significantpositive relationship between the use of risk managementand leverage.
Mayers and Smith (1990) show that demand forreinsurance is negatively related to credit standing(assigned by a rating agency); i.e., less credit-worthyinsurers reinsure more.
Garven and Lamm-Tennant (2000) show that demand forreinsurance is positively related to the insurers financial
leverage.
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Page 43Economic and Financial Perspectives on the Demand for Reinsurance
Empirical Findings
Risk management to facilitate optimal investment.
Nance, Smith & Smithson; Geczy, Minton & Schrand; andDolde all find a statistically significant positive relationshipbetween the firm's R&D expenditures and its use of riskmanagement.
Samant (1996) finds a statistically significant positiverelationship between the market-to-book value ratio and theuse of risk management.
Empirical evidence cited by Froot, Scharfstein and Stein (1993)suggests that for each dollar of unhedged loss, project budgetswill be cut by about 30 cents.
Minton and Schrand (1999) find that capital expenditure forfirms with high cash flow volatility is about 19% below averageand expenditures for those with low volatility is about 11%above average.
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Empirical Findings
Risk management as a function of managerial riskaversion.
Tufano (1996) finds managerial equity positions positivelycorrelated with risk management in gold firms, and
negative relationship between risk management and largermanagerial options.
Geczy, Minton and Schrand (1997) find that managerialequity positions are positively correlated with foreign
exchange risk management by nonfinancial firms; also, anegative relationship between risk management and largermanagerial options.