Interest rate
An interest rate is the price a borrower pays for the use of money he does not own, and the return a lender receives for deferring his consumption, by lending to the borrower. Interest rates are normally expressed as a percentage over the period of one year.
Interest rates are also a vital tool of monetary policy and are used to control variables like investment, inflation, and unemployment.
Contents
* 1 Causes of interest rates
* 2 Real vs nominal interest rates
* 3 Market interest rates
o 3.1 Risk-free cost of capital
o 3.2 Inflationary expectations
o 3.3 Risk
o 3.4 Liquidity preference
o 3.5 A market interest-rate model
o 3.6 Interest rate notations
* 4 Interest rates in macroeconomics
o 4.1 Output and unemployment
o 4.2 Open Market Operations in the United States
o 4.3 Money and inflation
* 5 Mathematical note
* 6 See also
* 7 External links
Causes of interest rates
* Deferred consumption. When money is loaned the lender delays spending the money on consumption goods. Since according to time preference theory people prefer goods now to goods later, in a free market there will be a positive interest rate.
* Inflationary expectations. Most economies generally exhibit inflation, meaning a given amount of money buys fewer goods in the future than it will now. The borrower needs to compensate the lender for this.
* Alternative investments. The lender has a choice between using his money in different investments. If he chooses one, he forgoes the returns from all the others. Different investments effectively compete for funds.
* Risks of investment. There is always a risk that the borrower will go bankrupt, abscond, or otherwise default on the loan. This means that a lender generally charges a risk premium to ensure that, across his investments, he is compensated for those that fail.
* Liquidity preference. People prefer to have their resources available in a form that can immediately be exchanged, rather than a form that takes time or money to realise.
* Taxes. Because some of the gains from interest may be subject to taxes, the lender may insist on a higher rate to make up for this loss.
Real vs nominal interest rates
The nominal interest rate is the amount, in money terms, of interest payable.
For example, suppose a household deposits $100 with a bank for 1 year and they receive interest of $10. At the end of the year their balance is $110. In this case, the nominal interest rate is 10% per annum.
The real interest rate, which measures the purchasing power of interest receipts, is calculated by adjusting the nominal rate charged to take inflation into account. (See real vs. nominal in economics.)
If inflation in the economy has been 10% in the year, then the $110 in the account at the end of the year buys the same amount as the $100 did a year ago. The real interest rate, in this case, is zero.
After the fact, the 'realized' real interest rate, which has actually occurred, is:
ir = in — p
where p = the actual inflation rate over the year.
The expected real returns on an investment, before it is made, are:
ir = in — pe
where:
in = nominal interest rate
ir = real interest rate
pe = expected or projected inflation over the year.
Market interest rates
There is a market for investments which ultimately includes the money market, bond market, stock market and currency market as well as retail financial institutions like banks.
Exactly how these markets function is a complex question. However, economists generally agree that the interest rates yielded by any investment take into account:
* The risk-free cost of capital
* Inflationary expectations
* The level of risk in the investment
* The costs of the transaction
Risk-free cost of capital
The risk-free cost of capital is the real interest on a risk-free loan. While no loan is ever entirely risk-free, bills issued by major nations like the United States are generally regarded as risk-free benchmarks.
This rate incorporates the deferred consumption and alternative investments elements of interest.
Inflationary expectations
According to the theory of rational expectations, people form an expectation of what will happen to inflation in the future. They then ensure that they offer or ask a nominal interest rate that means they have the appropriate real interest rate on their investment.
This is given by the formula:
in = ir + pe
where:
in = offered nominal interest rate
ir = desired real interest rate
pe = inflationary expectations
Risk
The level of risk in investments is taken into consideration. This is why very volatile investments like shares and junk bonds have higher returns than safer ones like government bonds.
The extra interest charged on a risky investment is the risk premium. The required risk premium is dependent on the risk preferences of the lender.
If an investment is 50% likely to go bankrupt, a risk-neutral lender will require their returns to double. So for an investment normally returning $100 they would require $200 back. A risk-averse lender would require more than $200 back and a risk-loving lender less than $200. Evidence suggests that most lenders are in fact risk-averse.
Generally speaking a longer-term investment carries a maturity risk premium, because long-term loans are exposed to more risk of default during their duration.
Liquidity preference
Most investors prefer their money to be in cash than in less fungible investments. Cash is on hand to be spent immediately if the need arises, but some investments require time or effort to transfer into spendable form. This is known as liquidity preference. A 10-year loan, for instance, is very illiquid compared to a 1-year loan. A 10-year US Treasury bond, however, is liquid because it can easily be sold on the market.
A market interest-rate model
A basic interest rate pricing model for an asset
in = ir + pe + rp+ lp
Assuming perfect information, pe is the same for all participants in the market, and this is identical to:
in = i*n + rp + lp
where:
in is the nominal interest rate on a given investment
ir is the risk-free return to capital
i*n = the nominal interest rate on a short-term risk-free liquid bond (such as U.S. Treasury Bills).
rp = a risk premium reflecting the length of the investment and the likelihood the borrower will default
lp = liquidity premium (reflecting the perceived difficulty of converting the asset into money and thus into goods).
Interest rate notations
What is commonly referred to as the interest rate in the media is generally the rate offered on overnight deposits by the Central Bank or other authority, annualised.
The total interest on an investment depends on the timescale the interest is calculated on, because interest paid may be compounded.
In finance, the effective interest rate is often derived from the yield, a composite measure which takes into account all payments of interest and capital from the investment.
In retail finance, the annual percentage rate and effective annual rate concepts have been introduced to help consumers easily compare different products with different payment structures.
Interest rates in macroeconomics
Output and unemployment
Interest rates are the main determinant of investment on a macroeconomic scale. Broadly speaking, if interest rates increase across the board, then investment decreases, causing a fall in national income. Note that if interest rates are high, that means the broad economy is doing well and thus people will be willing to borrow money at higher interest rates.
Interest rates are set by a government institution, usually a central bank, as the main tool of monetary policy. The institution offers to buy or sell money at the desired rate and, because of their immense size, they are able to effectively set i*n.
By altering i*n, the government institution is able to affect the interest rates faced by everyone who wants to borrow money for economic investment. Investment can change rapidly to changes in interest rates, affecting national income.
Through Okun's Law changes in output affect unemployment.
Open Market Operations in the United States
The effective federal funds rate charted over fifty years
The Federal Reserve (often referred to as 'The Fed') implements monetary policy largely by targeting the federal funds rate. This is the rate that banks charge each other for overnight loans of federal funds, which are the reserves held by banks at the Fed. Open market operations are one tool within monetary policy implemented by the Federal Reserve to steer short-term interest rates. Using the power to buy and sell treasury securities, the Open Market Desk at the Federal Reserve Bank of New York can supply the market with dollars by purchasing T-notes, hence increasing the nation's money supply. By increasing the money supply or Aggregate Supply of Funding (ASF), interest rates will fall due to the excess of dollars banks will end up with in their reserves. Excess reserves may be lent in the Fed funds market to other banks, thus driving down rates.
Money and inflation
Loans, bonds, and shares have some of the characteristics of money and are included in the broad money supply.
By setting i*n, the government institution can affect the markets to alter the total of loans, bonds and shares issued. Generally speaking, a higher real interest rate reduces the broad money supply.
Through the quantity theory of money, increases in the money supply lead to inflation. This means that interest rates can affect inflation in the future.
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Gulf Shores and Orange Beach Area Info
Climate
The Gulf Coast Area has a mild climate with an average annual temperature
of 67.4 degrees. The average temperature in January is 51.4 degrees.
The average temperature in July is 81.8 degrees. The average annual
precipitation is 67 inches, and the growing season is 292 days.
Education
Education is a fundamental block in building a bright future. The Gulf
Coast Area opened a brand new high school during 1999 in Gulf Shores
(ph. 251.968.4747). The area has two elementary schools; they are Gulf
Shores Elementary (ph. 251.968.7375) and Orange Beach Elementary (ph.
251.981.5662). Gulf Shores Middle School (ph. 251.968.8719) offers an
excellent curriculum in preparation for high school. All public schools
are part of the Baldwin County school system. If you are interested
in private education, you also have the option of Bayside Academy (ph.
251.955.5211), which includes age 3yrs – Grade 4.
Healthcare
The nearest hospital is South Baldwin Regional Medical Center (ph. 800.580.3627)
located in Foley. South Baldwin Medical Center offers 24-hour emergency
services (ph. 251.952.3400). Numerous medical professionals practice
in the area providing both family practice and specialized care.
Airports
Corporate and Private air service is available in Gulf Shores from the
Jack Edwards Municipal Airport, with a full Instrument Landing System
and the longest paved runway being 7000 feet. The closest commercial
air service is available in Pensacola, roughly 30 miles away, at the
Pensacola Regional Airport (ph. 850.435.1746). Major carriers serving
the airport are Continental, US Airways, Delta, Northwest, and American.
Other commercial airports are located in Mobile (ph. 251.633.0313) and
Gulf Port, Mississippi (ph. 228.863.5951).
Shopping
The area offers many shops ranging from casual apparel and beachwear
to upscale fashion and specialty boutiques. If you are a bargain hunter,
you can find 120 factory outlet stores in Foley.
Parks and Recreation
The nearest state park is the Gulf State Park (ph. 251.948.7275). The
6,000-acre park area offers campsites, picnic areas, 18-hole golf course,
825 foot fishing pier, 144 room hotel and convention center. Other parks
in the area include Bon Secour Wildlife Refuge (ph. 251.540.7720), Meyer
Park (ph. 251.968.4420), Johnnie Sims Park and Kids Park (ph. 251.968.4420),
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State/Local Income Tax
For detailed information about Alabama income tax, contact the Alabama
Department of Revenue, Individual and Corporate Tax Division (ph. 251.242.1000).
In most instances, local governments in Alabama do not levy city, town,
or county income taxes.
Property Taxes
Property (Ad Valorem) taxes are taxes on real business and/or personal
property. “Ad Valorem” means “according to value”.
For details, call the Revenue Commissioner’s office (ph. 251.943.5061,
ext. 2840).
