Hedging your bets in an uncertain world

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Hedging your bets in an uncertain world Decision support for ECGD'S interest-rate swap exercise

Denise Dyke, Chris Woodward and Tim Sharkey Figure 1: How a swap works

In 1986 the Treasuty Management Unit (TMU) of the Export Credits Guarantee Department (ECGD) carried out one of the biggest interest rate-swap exercises undertaken as of that date by a single organization. ECGD's Operational Research Seivices (ORS) built a

PAYS FIXED RATE

ECGD

Constant Notional

computer model to analyse over 400 loans and to identiIj possible swaps. The successful implementation of this model led to a member of ORS being seconded to TMU

Amount

COUNTERPARTY

to develop the model further and to investigate other areas where ORS could provide help. This was the first time such a secondment had taken place, and both

PAYS MARKET RATE

clients and ORS benefited from the arrangement.

ECGD uses the swap to 'hedge its position, i.e. to protect it against the danger of future fluctuations in

Background

market rates of interest. Figure 2 shows the impact of a swap on ECGD's cashflow.

ECGD is a government department which insures

exporters against bad debts arising from approved export transactions. For capital goods exports sold on credit terms in excess of two years, it also supports the provision of fixed-rate export finance. Such finance is provided by

Figure 2: Hedging interest rates Loan

banks in the United Kingdom who, subject to ECGD

BANK I

approval, make loans available at internationally-agreed

fixed rates of interest.

SWAP

Since fixed-rate funds are not

(MRFR) on loan plus margin

and since the internationally-agreed interest rates are

frequently below prevailing UK rates, ECGD assumesthat

Pays MR

ECGD

banks will fund themselves on a floating interest-rate

EXPORTER

on loan

Pays IMU

readily available ¡n the UK, especially for loans which are drawn down and repaid progressively over many years,

Pays FR = 8%

on swap

Pays FR =9% on swap

SWAP COUNTER PARTY

basis and offers compensation for the difference between the cost of floating-rate funds (measured by reference to

-k = Cashf low; MR = Market rate; FR = Fixed rate

interest charged to borrowers.

Net cost to ECGD 1% plus margin whatever the market rate

LIBOR) and the internationally-agreed fixed rates of

The Department thus operates an interest-rate stabilization programme, paying or receiving (as

In this example ECGD has a net IMU cost of 1% plus

the bank's margin which will not vary with time, thus achieving one of the principal objectives of the exercise,

appropriate), the difference between the floating-rate cost

of funds to the banks and the agreed fixed rate.

Historically this has tended to result in ECGD paying

namely to introduce certainty into the cost of meeting ECGD's IMU commitment, irrespective of subsequent

programme is often referred to as an interest make-up (IMU) programme.

The swap programme

movements in short-term interest rates.

significantly more than it receives, and for this reason the

ECGD had neither the vires nor