Ch 9 Flashcards
Definition of Forex Market
International market in national currencies
Highly competitive
Virtually no difference in price between two markets (e.g. NY and London)
Definition - Spot Rate
the rate given for a tx with immediate delivery
in practice, this means settled within two working days
Spread
range of rates offered by the bank to ensure they make a profit
e.g. actual rate for 1 GBP = USD 1.5, bank’s published rates are USD 1.45–1.55
a company wanting to BUY the variable currency (USD) will receive the LOWER rate – bank buys GBP LOW
a company wanting to SELL the variable currency (USD) will receive the HIGHER price – bank sells GBP HIGH
Cross Rate
Calculating the relationship between currency A and C when only A:B and B:C are given in the question
Four reasons entities may wish to forecast exchange rates
important to forecast b/c
FOREIGN DEBTOR/CREDITOR BALANCES
foreign balance may change drastically in local currency
WORKING CAPITAL
overseas subs will require working capital funding in foreign currency
PRICING
foreign pricing strategies may require revision due to forex mvmts - favorable or otherwise
INVESTMENT APPRAISAL OF FOREIGN SUBS
l/t forecast of exch rate mvmt to identify NPV impact of economic risks on a project
Reasons for fluctuation in exchange rates
SPECULATORS
BALANCE OF PAYMENTS
GOVERNMENT POLICY
CAPITAL MVMTS BETWEEN ECONOMIES
Exchange rate fluctuations - Speculators
enter into a forex tx to make a profit from their expectation of currency’s future mvmts
if they expect a currency to fall in value, they will short sell the currency and hope to buy it back more cheaply in the future
Exchange rate fluctuations - Balance of Payments
Currencies are req’d to finance int’l trade - thus changes in trade will affect exch rates
e.g. demand for imports in the US = demand for foreign currency, or a supply of USD
overseas demand for US exports = demand for USD, supply of the currency
thus, a country with current account deficit (imports>exports) will see exchange rate depreciate, b/c supply>demand for currency
anything which affects current account of balance of payments may affect the exch rate
Exchange rate fluctuations - Government Policy
govts may wish to change their currency’s value
DIRECTLY by deval/reval, or via forex markets (buying/selling currency onto the markets)
Exchange rate fluctuations - Capital Movements between Economies
these txs effectively switch bank deposits from one currency into another - these flows have become more important than volume of trade in gds/svcs
supply/demand for a currency may reflect events on the capital account - affected by several factors:
INTEREST RATE changes = increasing (dec’ing) rates will attract capital inflow (outflow) and a demand (supply) for the currency
INFLATION RATES = asset holders will not wish to hold financial assets in a currency whose value is falling due to inflation
Three related theories giving insight into exchange rate movements
Purchasing Power Parity Theory (PPPT)
Interest Rate Parity Theory (IRPT)
International Fisher Effect
Purchasing Power Parity Theory (PPPT)
suggests that exch rate will be directly determined by relative rates of inflation suffered by each currency - thus US inflation > UK means USD worth comparatively less than GBP
basis of PPPT is “LAW OF ONE PRICE” (separate cards)
Law of One Price
Basis of Purchasing Power Parity Theory (PPPT)
Identical goods must cost the same irrespective of currency
If not, ARBITRAGE will occur (buying low, selling high) until a single price is charged
- e.g. commodity purchased “cheaply” by traders, they then realize they can sell on due to popularity
- demand then falls due to higher price and potential profits have been competed away
Example - Purchasing Power Parity Theory (PPPT)
Company purchasing an NCA at $30m. Exch rate GBP1/$1.5 means GBP 20m.
Assuming US inflation 8% and UK 5%, what would prices in one year be?
US 30m + 8% = 32.4m // UK 20m + 5% = 21.m
Effective exch rate = 32.4 / 21 = 1.5429
Thus NCA = $30m / 1.5429 = GBP 19.44m
RULE of Purchasing Power Parity Theory (PPPT)
The country with the higher inflation will suffer a fall (depreciation) in currency
PPPT - Calculation of Future Spot Rate
Future spot rate = current spot rate * [( 1 + if ) / ( 1 + ih )]
if = rate of inflation in foreign country
ih = rate of inflation of home country

Problems with Purchasing Power Parity Theory (PPPT)
(1) justification of “law of one price” - in many markets suppliers/manufs charge what the market will bear - this varies from one market to the next
(2) costs of physically moving some prods from one place to another => a premium will always exist in some markets vs others
(3) different tax regimes => dramatic differences in costs of products in one mkt vs another
(4) manufactures can differentiate products in each mkt to limit amount of arbitrage that takes place
Purchasing Power Parity Theory (PPPT) - as a predictor of future spot rate
While PPPT does explain the reasoning behind many exch rate mvmts, it is not a very good predictor of rates in short to medium term
- future inflation rates are only estimates, thus not fully reliable
- market is dominated by speculation and currency investment > trade in physical goods
- govt direct (manipulation) and indirect (tax policies) intervention can nullify PPPT impact
Interest Rate Parity Theory (IRPT)
Very similar principle to that of Purchasing Power Parity Theory
Claims that the difference between spot and forward exchange rates = differential between interest rates available in the two currencies
Definition - Forward Rate
A future exchange rate, agreed now, for buying or selling an amount of currency on an agreed future date
Example - Interest Rate Parity Theory
An investor has $5m to investor over one year in either USD or GBP:
- invest in USD at 10.16%, or
- convert to GBP at prevailing spot rate (GBP 1 / USD 1.5) and invest in GBP at 7.1%
One-year forward rate is GBP 1 / USD 1.5429
DOLLARS = 5m * 1.1016 = USD 5.508m
POUNDS = 5m / 1.5 = GBP 3.333m * 1.071 = GBP 3.57m
In one year’s time, USD 5.51m must equal GBP 3.57m - what is gained in extra interest in lost in adverse exch rate mvmts
Effective exch rate = 5.508 / 3.57 = 1.5429 (forward rate from above)
Rule - Interest Rate Parity Theory
IRPT predicts that the country with the higher interest rate will see the forward rate for its currency subject to a depreciation
Formula - Interest Rate Parity Theory
Forward Rate = Current Spot Rate * [( 1 + intsf ) / ( 1 + intsh)]
intsf = money risk-free rate of interest for foreign currency
intsh = money risk-free rate of interest for home currency

Interest Rate Parity Theory in Practice
IRPT model suggests it may be possible to predict exch rate mvmts by referring to differences in nominal exchange rates
If the forward exchange rate for GBP vs USD was no higher than spot rate but US interest rates were higher:
- UK investors would invest in US to access higher interest rates, b/c no exch loss when converting back to GBP
- capital flow from UK to US would increase UK interest rates and force up the spot rate for USD
IRPT works because of ARBITRAGE - arbitrageurs seeking out anomalies in forex market and buying low/selling high. En masse, they will alter the exch rate (differences in S+D will alter the price) and anomaly will disappear


