What determines interest rate? Flashcards
what is Loanable funds theory ?
- real interest rates are determined by the supply and demand for loans
- The theory assumes only one type of loan and one interest rate; it ignores the diversity of rates illustrated
- The theory also assumes that savers lend directly to investors, which ignores the role of bank
what is Capital inflows?
- funds provided to a country’s investors by foreigners
what is Capital outflows ?
- Funds provided to foreign investors by a country’s savers
Net capital inflows :
capital inflows minus capital outflows
Private saving :
- saving by individuals and firms
Public saving :
- saving by the government (tax revenue minus government spending)
Budget surplus :
- a positive level of public saving
Budget deficit :
- a negative level of public saving
what affects have a higher real interest rate in the demand for loans ?
- A higher real interest rate makes investment more costly, so fewer projects are undertaken. Lower investment means that investors want fewer loans.
Effects on the supply of loans, if the interest rate increase:
- higher returns to saver
- higher interest rate encourages people to save more
- decreases capital outflows.
the equilibrium real interest rate, r*:
- it is the interest rate at which the supply and demand curves intersect.
what happens when there is an excess of supply of loans?
- it means that the interest rate is higher than the equilibrium
- Not all lenders can find borrowers
- In this situation, lenders should offer lower interest rates to attract borrowers, pushing rates down
what happens when there is an excess of demand for loans?
- it means that the interest rate is lower than the equilibrium
- not all borrowers can find lenders
- borrowers offer higher rates to attract lenders, pushing rates up
Meaning of Budget surplus:
- a positive level of public saving
Meaning of Budget deficit:
- a negative level of public saving
what is Capital Flight ?
- sudden decrease in net capital inflows that occurs when foreign savers lose confidence in an economy
Two categories of saving :
- Private Saving
- Public Saving
Why might capital flows shift?
- Changes in Confidence
- Foreign Interest Rates
How Foreign Interest Rates affected local interest rate ?
- interest rates in different countries are connected
- they tend to move in the same direction An event that raises the interest rate in one country, such as a higher budget deficit, reduces net capital inflows to other countries. The supply of loans falls in the other countries, so their interest rates rise too.
Fisher equation : (formula)
- the nominal interest rate equals the real rate plus expected inflation:
I= r + pie
- “r” is the real interest rate
- “i” is the nominal rate
- “pie” is expected inflation
Theory of Adaptive expectations: definition and formula
- theory that people’s expectations of a variable are based on past levels of the variable; also, backward looking expectations.
pie = pi-1
- “pie“ mean expected inflation
- “pi-1“ mean inflation of the last year
Liquidity preference theory:
- the nominal interest rate is determined by the supply and demand for money
the key simplifying assumption that only two kinds of assets exist: (liquidity preference theory)
- Money
the medium of exchange
People use money to purchase goods and services
they can’t use bonds.
- Bonds
It pay interest but money does not
what is money supply ?
The money supply is the total amount of money in the economy.


