A2 Economics – Liquidity Preference Curve

With mock exams this week here is something on Liquidity Preference – included is a mind map that has been modified from Susan Grant’s CIE revision book.

Demand for money

TRANSACTIONS DEMAND – T – this is money used for the purchase of goods and services. The transactions demand for money is positively related to real incomes and inflation. As an individual’s income rises or as prices in the shops increase, he will have to hold more cash to carry out his everyday transactions. The quantity of nominal money demand is therefore proportional to the price level in the economy. (note:  the real demand for money is independent of the price level)

PRECAUTIONARY BALANCES – P – this is money held to cover unexpected items of expenditure. As with the transactions demand for money, it is positively correlated with real incomes and inflation.

SPECULATIVE BALANCES – S – this is money not held for transaction purposes but in place of other financial assets, usually because they are expected to fall in price.

Bond prices and interest rates are inversely related – Interest Rates ↑ = Bond Prices ↓ and Interest Rates ↓ = Bond Prices ↑.

If a bond has a fixed return, e.g. $10 a year. If the price of a bond is $100 this represents a 10% return. If the price of the bond is $50 this represents a 20% return, i.e. the lower the price of the bond, the greater the return.

At high rates of interest, individuals expect interest rates to fall and bond prices to rise. To benefit from the rise in bond prices individuals use their speculative balances to buy bonds. Thus when interest rates are high speculative money balances are low.

At low rates of interest, individuals expect interest rates to rise and bond prices to fall. To avoid the capital loses associated with a fall in the price of bonds individuals will sell their bonds and add to their speculative cash balances. Thus, when interest rates are low speculative money balances will be high.

There is an inverse relationship between the rate of interest and the speculative demand for money.

The total demand for money is obtained by the summation of the transactions, precautionary and speculative demands. Represented graphically, it is sometimes called the liquidity preference curve and is inversely related to the rate of interest.



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