What Is Aggregate Demand?

Aggregate demand is a measurement of the total amount of demand for all finished goods and services produced in an economy. Aggregate demand is commonly expressed as the total amount of money exchanged for those goods and services at a specific price level and point in time.

Understanding Aggregate Demand

Aggregate demand is a macroeconomic term and can be compared with the gross domestic product (GDP). GDP represents the total amount of goods and services produced in an economy while aggregate demand is the demand or desire for those goods. Aggregate demand and GDP commonly increase or decrease together.

Aggregate demand equals GDP only in the long run after adjusting for the price level. Short-run aggregate demand measures total output for a single nominal price level without adjusting for inflation. Other variations in calculations can occur depending on the methodologies used and the various components.

Aggregate demand consists of all consumer goods, capital goods, exports, imports, and government spending programs. All variables are considered equal if they trade at the same market value.

Aggregate Demand Components

Aggregate demand is determined by the overall collective spending on products and services by all economic sectors on the procurement of goods and services by four components:

Consumption Spending

Consumer spending represents the demand by individuals and households within the economy. While there are several factors in determining consumer demand, the most important is consumer incomes and the level of taxation.

Investment Spending

Investment spending represents businesses’ investment to support current output and increase production capability. It may include spending on new capital assets such as equipment, facilities, and raw materials.

Government Spending

Government spending represents the demand produced by government programs, such as infrastructure spending and public goods. This does not include services such as Medicare or social security, because these programs simply transfer demand from one group to another.

Net Exports

Net exports represent the demand for foreign goods, as well as the foreign demand for domestic goods. It is calculated by subtracting the total value of a country’s exports from the total value of all imports.

Aggregate Demand Formula

The equation for aggregate demand adds the amount of consumer spending, investment spending, government spending, and the net of exports and imports. The formula is shown as follows:

$\begin{aligned} &\text{Aggregate Demand} = \text{C} + \text{I} + \text{G} + \text{Nx} \\ &\textbf{where:}\\ &\text{C} = \text{Consumer spending on goods and services} \\ &\text{I} = \text{Private investment and corporate spending on} \\ &\text{non-final capital goods (factories, equipment, etc.)} \\ &\text{G} = \text{Government spending on public goods and social} \\ &\text{services (infrastructure, Medicare, etc.)} \\ &\text{Nx} = \text{Net exports (exports minus imports)} \\ \end{aligned}$​Aggregate Demand=C+I+G+Nxwhere:C=Consumer spending on goods and servicesI=Private investment and corporate spending onnon-final capital goods (factories, equipment, etc.)G=Government spending on public goods and socialservices (infrastructure, Medicare, etc.)Nx=Net exports (exports minus imports)​

The aggregate demand formula above is also used by the Bureau of Economic Analysis to measure GDP in the U.S.

What Affects Aggregate Demand?

Interest Rates

Interest rates affect decisions made by consumers and businesses. Lower interest rates will lower the borrowing costs for big-ticket items such as appliances, vehicles, and homes and companies will be able to borrow at lower rates, often leading to capital spending increases. Higher interest rates increase the cost of borrowing for consumers and companies and spending tends to decline or grow at a slower pace.

Income and Wealth

As household wealth increases, aggregate demand typically increases. Conversely, a decline in wealth usually leads to lower aggregate demand. When consumers are feeling good about the economy, they tend to spend more and save less.

Inflation Expectations

Consumers who anticipate that inflation will increase or prices will rise tend to make immediate purchases leading to rises in aggregate demand. But if consumers believe prices will fall in the future, aggregate demand typically falls.

Currency Exchange Rates

When the value of the U.S. dollar falls, foreign goods will become more expensive. Meanwhile, goods manufactured in the U.S. will become cheaper for foreign markets. Aggregate demand will, therefore, increase. When the value of the dollar increases, foreign goods are cheaper and U.S. goods become more expensive to foreign markets, and aggregate demand decreases.

Economic Conditions and Aggregate Demand

Economic conditions can impact aggregate demand whether those conditions originated domestically or internationally. The financial crisis of 2007-08, sparked by massive amounts of mortgage loan defaults, and the ensuing Great Recession, offer a good example of a decline in aggregate demand due to economic conditions.

With businesses suffering from less access to capital and fewer sales, they began to lay off workers and GDP growth contracted in 2008 and 2009, resulting in a total production contraction in the economy during that period. A poor-performing economy and rising unemployment led to a decline in personal consumption or consumer spending. Personal savings also surged as consumers held onto cash due to an uncertain future and instability in the banking system.

In 2020, the COVID-19 pandemic caused reductions in both aggregate supply or production, and aggregate demand or spending. Social distancing measures and concerns about the spread of the virus caused a significant decrease in consumer spending, particularly in services as many businesses closed. These dynamics lowered aggregate demand in the economy. As aggregate demand fell, businesses either laid off part of their workforces or otherwise slowed production as employees contracted COVID-19 at high rates.

Aggregate Demand vs. Aggregate Supply

In times of economic crises, economists often debate as to whether aggregate demand slowed, leading to lower growth, or GDP contracted, leading to less aggregate demand. Whether demand leads to growth or vice versa is economists’ version of the age-old question of what came first—the chicken or the egg.

Boosting aggregate demand also boosts the size of the economy regarding measured GDP. However, this does not prove that an increase in aggregate demand creates economic growth. Since GDP and aggregate demand share the same calculation, it only indicates that they increase concurrently. The equation does not show which is the cause and which is the effect.

Early economic theories hypothesized that production is the source of demand. The 18th-century French classical liberal economist Jean-Baptiste Say stated that consumption is limited to productive capacity and that social demands are essentially limitless, a theory referred to as Say’s Law of Markets.

Say’s law, the basis of supply-side economics, ruled until the 1930s and the advent of the theories of British economist John Maynard Keynes. By arguing that demand drives supply, Keynes placed total demand in the driver’s seat. Keynesian macroeconomists have since believed that stimulating aggregate demand will increase real future output and the total level of output in the economy is driven by the demand for goods and services and propelled by money spent on those goods and services.

Keynes considered unemployment to be a byproduct of insufficient aggregate demand because wage levels would not adjust downward fast enough to compensate for reduced spending. He believed the government could spend money and increase aggregate demand until idle economic resources, including laborers, were redeployed.

Other schools of thought, notably the Austrian School and real business cycle theorists stress consumption is only possible after production. This means an increase in output drives an increase in consumption, not the other way around. Any attempt to increase spending rather than sustainable production only causes maldistribution of wealth or higher prices, or both.

As a demand-side economist, Keynes further argued that individuals could end up damaging production by limiting current expenditures—by hoarding money, for example. Other economists argue that hoarding can impact prices but does not necessarily change capital accumulation, production, or future output. In other words, the effect of an individual’s saving money—more capital available for business—does not disappear on account of a lack of spending.

The Bottom Line

Aggregate demand is a concept of macroeconomics that represents the total demand within an economy for all kinds of goods and services at a certain price point. In the long term, aggregate demand is indistinguishable from GDP. However, aggregate demand is not a perfect metric and it is the subject of debate among economists.

What Is Asset-Based Lending?

Asset-based lending is the business of loaning money in an agreement that is secured by collateral. An asset-based loan or line of credit may be secured by inventory, accounts receivable, equipment, or other property owned by the borrower.

The asset-based lending industry serves business, not consumers. It is also known as asset-based financing.

How Asset-Based Lending Works

Many businesses need to take out loans or obtain lines of credit to meet routine cash flow demands. For example, a business might obtain a line of credit to make sure it can cover its payroll expenses even if there’s a brief delay in payments it expects to receive.

If the company seeking the loan cannot show enough cash flow or cash assets to cover a loan, the lender may offer to approve the loan with its physical assets as collateral. For example, a new restaurant might be able to obtain a loan only by using its equipment as collateral.

The terms and conditions of an asset-based loan depend on the type and value of the assets offered as security. Lenders prefer highly liquid collateral such as securities that can readily be converted to cash if the borrower defaults on the payments. Loans using physical assets are considered riskier, so the maximum loan will be considerably less than the book value of the assets. Interest rates charged vary widely, depending on the applicant’s credit history, cash flow, and length of time doing business.

Example

For example, say a company seeks a $200,000 loan to expand its operations. If the company pledges the highly liquid marketable securities on its balance sheet as collateral, the lender may grant a loan equalling 85% of the face value of the securities. If the firm’s securities are valued at $200,000, the lender will be willing to loan $170,000. If the company chooses to pledge less liquid assets, such as real estate or equipment, it may only be offered 50% of its required financing, or $100,000.

In both cases, the discount represents the costs of converting the collateral to cash and its potential loss in market value.

Special Considerations

Small and mid-sized companies that are stable and that have physical assets of value are the most common asset-based borrowers.

However, even large corporations may occasionally seek asset-based loans to cover short-term needs. The cost and long lead time of issuing additional shares or bonds in the capital markets may be too high. The cash demand may be extremely time-sensitive, such as in the case of a major acquisition or an unexpected equipment purchase.

What Is an Adjustable-Rate Mortgage (ARM)?

The term adjustable-rate mortgage (ARM) refers to a home loan with a variable interest rate. With an ARM, the initial interest rate is fixed for a period of time. After that, the interest rate applied on the outstanding balance resets periodically, at yearly or even monthly intervals.

ARMs are also called variable-rate mortgages or floating mortgages. The interest rate for ARMs is reset based on a benchmark or index, plus an additional spread called an ARM margin. The typical index that is used in ARMs has been the London Interbank Offered Rate (LIBOR).

Understanding Adjustable-Rate Mortgages (ARMs)

Mortgages allow homeowners to finance the purchase of a home or other piece of property. When you get a mortgage, you’ll need to repay the borrowed sum over a set number of years as well as pay the lender something extra to compensate them for their troubles and the likelihood that inflation will erode the value of the balance by the time the funds are reimbursed.

In most cases, you can choose the type of mortgage loan that best suits your needs. A fixed-rate mortgage comes with a fixed interest rate for the entirety of the loan. As such, your payments remain the same. An ARM, where the rate fluctuates based on market conditions. This means that you benefit from falling rates and also run the risk if rates increase.

There are two different periods to an ARM. One is the fixed period and the other is the adjusted period. Here’s how the two differ:

• Fixed Period: The interest rate doesn’t change during this period. It can range anywhere between the first five, seven, or 10 years of the loan. This is commonly known as the intro or teaser rate.
• Adjusted Period: This is the point at which the rate changes. Changes are made during this period based on the underlying benchmark, which fluctuates based on market conditions.

Another key characteristic of ARMs is whether they are conforming or nonconforming loans. Conforming loans are those that meet the standards of government-sponsored enterprises (GSEs) like Fannie Mae and Freddie Mac. They are packaged and sold off on the secondary market to investors. Nonconforming loans, on the other hand, aren’t up to the standards of these entities and aren’t sold as investments.

Rates are capped on ARMs. This means that there are limits on the highest possible rate a borrower must pay. Keep in mind, though, that your credit score plays an important role in determining how much you’ll pay. So, the better your score, the lower your rate.

Types of ARMs

ARMs generally come in three forms: Hybrid, interest-only (IO), and payment option. Here’s a quick breakdown of each.

Hybrid ARM

Hybrid ARMs offer a mix of a fixed- and adjustable-rate period. With this type of loan, the interest rate will be fixed at the beginning and then begin to float at a predetermined time.

This information is typically expressed in two numbers. In most cases, the first number indicates the length of time that the fixed rate is applied to the loan, while the second refers to the duration or adjustment frequency of the variable rate.

For example, a 2/28 ARM features a fixed rate for two years followed by a floating rate for the remaining 28 years. In comparison, a 5/1 ARM has a fixed rate for the first five years, followed by a variable rate that adjusts every year (as indicated by the number one after the slash). Likewise, a 5/5 ARM would start with a fixed rate for five years and then adjust every five years.

Interest-Only (I-O) ARM

It’s also possible to secure an interest-only (I-O) ARM, which essentially would mean only paying interest on the mortgage for a specific time frame—typically three to 10 years. Once this period expires, you are then required to pay both interest and the principal on the loan.

These types of plans appeal to those keen to spend less on their mortgage in the first few years so that they can free up funds for something else, such as purchasing furniture for their new home. Of course, this advantage comes at a cost: The longer the I-O period, the higher your payments will be when it ends.

Payment-Option ARM

A payment-option ARM is, as the name implies, an ARM with several payment options. These options typically include payments covering principal and interest, paying down just the interest, or paying a minimum amount that does not even cover the interest.

Opting to pay the minimum amount or just the interest might sound appealing. However, it’s worth remembering that you will have to pay the lender back everything by the date specified in the contract and that interest charges are higher when the principal isn’t getting paid off. If you persist with paying off little, then you’ll find your debt keeps growing—perhaps to unmanageable levels.

Advantages and Disadvantages of ARMs

Adjustable-rate mortgages come with many benefits and drawbacks. We’ve listed some of the most common ones below.

Advantages

The most obvious advantage is that a low rate, especially the intro or teaser rate, will save you money. Not only will your monthly payment be lower than most traditional fixed-rate mortgages, you may also be able to put more down toward your principal balance. Just ensure your lender doesn’t charge you a prepayment fee if you do.

ARMs are great for people who want to finance a short-term purchase, such as a starter home. Or you may want to borrow using an ARM to finance the purchase of a home that you intend to flip. This allows you to pay lower monthly payments until you decide to sell again.

More money in your pocket with an ARM also means you have more in your pocket to put toward savings or other goals, such as a vacation or a new car.

Unlike fixed-rate borrowers, you won’t have to make a trip to the bank or your lender to refinance when interest rates drop. That’s because you’re probably already getting the best deal available.

Disadvantages

One of the major cons of ARMs is that the interest rate will change. This means that if market conditions lead to a rate hike, you’ll end up spending more on your monthly mortgage payment. And that can put a dent in your monthly budget.

ARMs may offer you flexibility but they don’t provide you with any predictability as fixed-rate loans do. Borrowers with fixed-rate loans know what their payments will be throughout the life of the loan because the interest rate never changes. But because the rate changes with ARMs, you’ll have to keep juggling your budget with every rate change.

These mortgages can often be very complicated to understand, even for the most seasoned borrower. There are various features that come with these loans that you should be aware of before you sign your mortgage contracts, such as caps, indexes, and margins.

How the Variable Rate on ARMs Is Determined

At the end of the initial fixed-rate period, ARM interest rates will become variable (adjustable) and will fluctuate based on some reference interest rate (the ARM index) plus a set amount of interest above that index rate (the ARM margin). The ARM index is often a benchmark rate such as the prime rate, the LIBOR, the Secured Overnight Financing Rate (SOFR), or the rate on short-term U.S. Treasuries.

Although the index rate can change, the margin stays the same. For example, if the index is 5% and the margin is 2%, the interest rate on the mortgage adjusts to 7%. However, if the index is at only 2% the next time that the interest rate adjusts, the rate falls to 4% based on the loan’s 2% margin.

Adjustable-Rate Mortgage vs. Fixed Interest Mortgage

Unlike ARMs, traditional or fixed-rate mortgages carry the same interest rate for the life of the loan, which might be 10, 20, 30, or more years. They generally have higher interest rates at the outset than ARMs, which can make ARMs more attractive and affordable, at least in the short term. However, fixed-rate loans provide the assurance that the borrower’s rate will never shoot up to a point where loan payments may become unmanageable.

With a fixed-rate mortgage, monthly payments remain the same, although the amounts that go to pay interest or principal will change over time, according to the loan’s amortization schedule.

If interest rates in general fall, then homeowners with fixed-rate mortgages can refinance, paying off their old loan with one at a new, lower rate.

Is an ARM Right for You?

An ARM can be a smart financial choice if you are planning to keep the loan for a limited period of time and will be able to handle any rate increases in the meantime. Put simply, an adjustable-rate mortgage is well suited for the following types of borrowers:

• People who intend to hold the loan for a short period of time
• Individuals who expect to see a positive change in their income
• Anyone who can and will pay off the mortgage within a short time frame

In many cases, ARMs come with rate caps that limit how much the rate can rise at any given time or in total. Periodic rate caps limit how much the interest rate can change from one year to the next, while lifetime rate caps set limits on how much the interest rate can increase over the life of the loan.

Notably, some ARMs have payment caps that limit how much the monthly mortgage payment can increase, in dollar terms. That can lead to a problem called negative amortization if your monthly payments aren’t sufficient to cover the interest rate that your lender is changing. With negative amortization, the amount that you owe can continue to increase, even as you make the required monthly payments.

The Bottom Line

Borrowers have many options available to them when they want to finance the purchase of their home or another type of property. You can choose between a fixed-rate or adjustable-rate mortgage. While the former provides you with some predictability, ARMs offer lower interest rates for a certain period of time before they begin to fluctuate with market conditions. There are different types of ARMs to choose from and they have pros and cons. But keep in mind that these kinds of loans are better suited for certain kinds of borrowers, including those who intend to hold onto a property for the short term or if they intend to pay off the loan before the adjusted period begins. If you’re unsure, talk to a financial expert about your options.

What Is Annual Percentage Rate (APR)?

Annual percentage rate (APR) refers to the yearly interest generated by a sum that’s charged to borrowers or paid to investors. APR is expressed as a percentage that represents the actual yearly cost of funds over the term of a loan or income earned on an investment. This includes any fees or additional costs associated with the transaction but does not take compounding into account. The APR provides consumers with a bottom-line number they can compare among lenders, credit cards, or investment products.

How the Annual Percentage Rate (APR) Works

An annual percentage rate is expressed as an interest rate. It calculates what percentage of the principal you’ll pay each year by taking things such as monthly payments and fees into account. APR is also the annual rate of interest paid on investments without accounting for the compounding of interest within that year.

The Truth in Lending Act (TILA) of 1968 mandates that lenders disclose the APR they charge to borrowers. Credit card companies are allowed to advertise interest rates on a monthly basis, but they must clearly report the APR to customers before they sign an agreement.

How Is APR Calculated?

APR is calculated by multiplying the periodic interest rate by the number of periods in a year in which it was applied. It does not indicate how many times the rate is actually applied to the balance.

$\begin{aligned} &\text{APR} = \left ( \left ( \frac{ \frac{ \text{Fees} + \text{Interest} }{ \text {Principal} } }{ n } \right ) \times 365 \right ) \times 100 \\ &\textbf{where:} \\ &\text{Interest} = \text{Total interest paid over life of the loan} \\ &\text{Principal} = \text{Loan amount} \\ &n = \text{Number of days in loan term} \\ \end{aligned}$​APR=((nPrincipalFees+Interest​​)×365)×100where:Interest=Total interest paid over life of the loanPrincipal=Loan amountn=Number of days in loan term​

Types of APRs

Credit card APRs vary based on the type of charge. The credit card issuer may charge one APR for purchases, another for cash advances, and yet another for balance transfers from another card. Issuers also charge high-rate penalty APRs to customers for late payments or violating other terms of the cardholder agreement. There’s also the introductory APR—a low or 0% rate—with which many credit card companies try to entice new customers to sign up for a card.

Bank loans generally come with either fixed or variable APRs. A fixed APR loan has an interest rate that is guaranteed not to change during the life of the loan or credit facility. A variable APR loan has an interest rate that may change at any time.

The APR borrowers are charged also depends on their credit. The rates offered to those with excellent credit are significantly lower than those offered to those with bad credit.

APR vs. Annual Percentage Yield (APY)

Though an APR only accounts for simple interest, the annual percentage yield (APY) takes compound interest into account. As a result, a loan’s APY is higher than its APR. The higher the interest rate—and to a lesser extent, the smaller the compounding periods—the greater the difference between the APR and APY.

Imagine that a loan’s APR is 12%, and the loan compounds once a month. If an individual borrows $10,000, their interest for one month is 1% of the balance, or $100. That effectively increases the balance to $10,100. The following month, 1% interest is assessed on this amount, and the interest payment is $101, slightly higher than it was the previous month. If you carry that balance for the year, your effective interest rate becomes 12.68%. APY includes these small shifts in interest expenses due to compounding, while APR does not.

Here’s another way to look at it. Say you compare an investment that pays 5% per year with one that pays 5% monthly. For the first month, the APY equals 5%, the same as the APR. But for the second, the APY is 5.12%, reflecting the monthly compounding.

Given that an APR and a different APY can represent the same interest rate on a loan or financial product, lenders often emphasize the more flattering number, which is why the Truth in Savings Act of 1991 mandated both APR and APY disclosure in ads, contracts, and agreements. A bank will advertise a savings account’s APY in a large font and its corresponding APR in a smaller one, given that the former features a superficially larger number. The opposite happens when the bank acts as the lender and tries to convince its borrowers that it’s charging a low rate. A great resource for comparing both APR and APY rates on a mortgage is a mortgage calculator.

APR vs. APY Example

Let’s say that XYZ Corp. offers a credit card that levies interest of 0.06273% daily. Multiply that by 365, and that’s 22.9% per year, which is the advertised APR. Now, if you were to charge a different $1,000 item to your card every day and waited until the day after the due date (when the issuer started levying interest) to start making payments, you’d owe $1,000.6273 for each thing you bought.

To calculate the APY or effective annual interest rate—the more typical term for credit cards—add one (that represents the principal) and take that number to the power of the number of compounding periods in a year; subtract one from the result to get the percentage:

$\begin{aligned} &\text{APY} = (1 + \text{Periodic Rate} ) ^ n – 1 \\ &\textbf{where:} \\ &n = \text{Number of compounding periods per year} \\ \end{aligned}$​APY=(1+Periodic Rate)n−1where:n=Number of compounding periods per year​

In this case your APY or EAR would be 25.7%:

$\begin{aligned} &( ( 1 + .0006273 ) ^ {365} ) – 1 = .257 \\ \end{aligned}$​((1+.0006273)365)−1=.257​

If you only carry a balance on your credit card for one month’s period, you will be charged the equivalent yearly rate of 22.9%. However, if you carry that balance for the year, your effective interest rate becomes 25.7% as a result of compounding each day.

APR vs. Nominal Interest Rate vs. Daily Periodic Rate

An APR tends to be higher than a loan’s nominal interest rate. That’s because the nominal interest rate doesn’t account for any other expense accrued by the borrower. The nominal rate may be lower on your mortgage if you don’t account for closing costs, insurance, and origination fees. If you end up rolling these into your mortgage, your mortgage balance increases, as does your APR.

The daily periodic rate, on the other hand, is the interest charged on a loan’s balance on a daily basis—the APR divided by 365. Lenders and credit card providers are allowed to represent APR on a monthly basis, though, as long as the full 12-month APR is listed somewhere before the agreement is signed.

Disadvantages of Annual Percentage Rate (APR)

The APR isn’t always an accurate reflection of the total cost of borrowing. In fact, it may understate the actual cost of a loan. That’s because the calculations assume long-term repayment schedules. The costs and fees are spread too thin with APR calculations for loans that are repaid faster or have shorter repayment periods. For instance, the average annual impact of mortgage closing costs is much smaller when those costs are assumed to have been spread over 30 years instead of seven to 10 years.

APR also runs into some trouble with adjustable-rate mortgages (ARMs). Estimates always assume a constant rate of interest, and even though APR takes rate caps into consideration, the final number is still based on fixed rates. Because the interest rate on an ARM will change when the fixed-rate period is over, APR estimates can severely understate the actual borrowing costs if mortgage rates rise in the future.

Mortgage APRs may or may not include other charges, such as appraisals, titles, credit reports, applications, life insurance, attorneys and notaries, and document preparation. There are other fees that are deliberately excluded, including late fees and other one-time fees.

All this may make it difficult to compare similar products because the fees included or excluded differ from institution to institution. In order to accurately compare multiple offers, a potential borrower must determine which of these fees are included and, to be thorough, calculate APR using the nominal interest rate and other cost information.

The Bottom Line

The APR is the basic theoretical cost or benefit of money loaned or borrowed. By calculating only the simple interest without periodic compounding, the APR gives borrowers and lenders a snapshot of how much interest they are earning or paying within a certain period of time. If someone is borrowing money, such as by using a credit card or applying for a mortgage, the APR can be misleading because it only presents the base number of what they are paying without taking time into the equation. Conversely, if someone is looking at the APR on a savings account, it doesn’t illustrate the full impact of interest earned over time.

APRs are often a selling point for different financial instruments, such as mortgages or credit cards. When choosing a tool with an APR, be careful to also take into account the APY because it will prove a more accurate number for what you will pay or earn over time. Though the formula for your APR may stay the same, different financial institutions will include different fees in the principal balance. Be aware of what is included in your APR when signing any agreement.