Business Cycles

People and firms usually do well when the economy grows, but they face challenges when the economy slows down. These changes happen because overall economic activity does not remain steady over time. Instead, aggregate economic activity moves around the long-term growth path over time.Aggregate economic activity increases for a period, reaches a high point, and then begins to decline. A high point is called a peak. It is the time when aggregate economic activity stops rising and starts to...

A common way to study business cycles is by observing changes in real GDP. Under this approach, a recession is defined as two consecutive quarters of decline in real GDP. This method became popular because, in the past, movements in GDP were often linked to other important measures of economic performance, including employment, inflation, and investment.However, focusing only on GDP does not always capture the complete picture of the economy. For example, consider a scenario where GDP is...

Relying only on GDP to measure business cycles has its limitations. So, economists often use a broader definition based on aggregate economic activity. This approach considers several indicators, such as GDP, employment, domestic investment, inflation, and other indicators, such as consumer confidence, retail sales, or capacity utilization.to form a more comprehensive picture of how the economy is performing. By combining multiple measures, economists can better understand changes in overall...

The business cycle refers to the repeated sequence of economic expansion and contraction that happens over time. One complete business cycle can be measured from one peak to the next peak or from one trough to the next trough.Expansion is the phase during which aggregate economic activity increases. The upward movement starts from the trough and continues until economic activity reaches its highest point, or peak, marking the end of the expansion phase.A rise in consumer confidence is one...

The contraction phase is one of the two main phases of the business cycle, the other being the expansion phase. Contraction is the period during which aggregate economic activity falls.One possible reason for contraction is a financial crisis. During a financial crisis, banks may cut back on lending because they may anticipate more loan defaults. This may decrease the availability of credit across the economy.When credit becomes scarce, businesses find it difficult to borrow funds for...

Three important features of business cycles are comovement, recurrence, and persistence.Comovement describes the way different sectors and economic indicators tend to move in the same direction during a business cycle. When an economy grows, many sectors of the economy tend to rise around the same time. Similarly, during a downturn, activity across sectors tends to decline around the same time.Recurrence refers to the repeated nature of business cycles. This means that expansions and...

The oil crisis of the early 1970s is an important example of how outside shocks can interrupt the normal business cycle. Before the crisis, the U.S. economy was experiencing steady expansion. Employment was rising, production was increasing, and consumer demand remained strong. This period of growth changed suddenly when major disruptions affected global oil supplies.In 1973, OPEC sharply reduced oil exports to several countries, including the United States. The reduction in global oil supply...

The Global Financial Crisis of 2007 to 2009 is a major example of how problems during an economic expansion can lead to a severe contraction. In the years before the crisis, the economy was growing steadily. Interest rates were low, credit was widely available, and many people borrowed money to buy homes. A large number of these loans were subprime mortgages, which were home loans given to borrowers with weak credit histories or limited ability to repay. As housing demand increased, home prices...

Economic variables often change along with the ups and downs of the business cycle. Some variables move in the same direction as the overall economy. When the economy expands, these variables increase, and when the economy contracts, they decrease. Such variables are described as procyclical. Other variables move in the opposite direction of the business cycle. They tend to decrease when the economy expands and increase when the economy contracts. These are known as countercyclical...

Economic variables change over time in relation to the business cycle. Based on timing, they are grouped as leading, coincident, or lagging variables.A leading variable changes direction before the turning points in the business cycle. These variables can help identify upcoming changes in economic activity. For example, the consumer confidence index is a leading variable. This is because shifts in sentiment often precede changes in spending and productionCoincident variables move in line with...

Consumption refers to household spending on goods and services. It includes spending on durable goods, nondurable goods, and services. However, the purchase of new housing is classified as an investment rather than consumption.Consumption is often procyclical. This means consumption increases during expansion and decreases during contraction.However, not all types of consumption change to the same extent. Spending on durable goods tends to fluctuate more than spending on nondurable goods and...

Investment refers to spending by private businesses on capital goods such as machines, equipment, and the construction of new factories. It is generally procyclical, meaning that investment tends to rise during periods of economic expansion and fall during contractions. Investment is also coincident with the business cycle, as its peaks and troughs happen around the same time as those of the business cycle.Businesses increase investment in capital goods when they anticipate higher demand for...

The unemployment rate moves in line with the business cycle, rising and falling as the economy contracts or expands. It is countercyclical, meaning it increases during contractions and decreases during expansions. When the economy slows down, firms respond by laying off workers, which raises the number of unemployed people. This increases the unemployment rate. On the other hand, when the economy recovers, firms hire more workers, leading to a fall in unemployment.However, the unemployment rate...

Average labor productivity refers to the amount of output produced for each unit of labor input over a specific period. Output is typically measured as real GDP. The labor input can be measured by the total number of hours worked or the total number of workers.So, average labor productivity can be calculated as the quotient of real GDP and total hours worked.This measure is often procyclical, meaning it tends to rise and fall with the business cycle. During periods of economic expansion,...

Inflation refers to an increase in the overall price level in an economy. It is often procyclical, meaning it tends to rise during economic expansions and slow down during recessions. When the economy expands, strong aggregate demand encourages firms to raise prices, leading to higher inflation. On the other hand, during a recession, inflation typically slows down.However, inflation does not always follow the same pattern with the business cycle. Certain situations can cause prices to rise even...

Seasonal fluctuations refer to regular and predictable changes in economic activity that happen at specific times each year. These variations arise from recurring influences such as weather conditions, holidays, and institutional schedules. Unlike business cycles, which are irregular, seasonal fluctuations are predictable and happen every year.Weather patterns can affect the economy. Certain industries, such as agriculture and construction, tend to experience higher or lower activity during...