A business cycle refers to the recurring pattern of expansion and contraction in economic activity, characterized by fluctuations in output, employment, and other economic indicators.

Contraction is the phase of the business cycle where economic activity declines, resulting in decreased output, employment, and overall economic slowdown.

The peak of a business cycle represents the highest level of economic activity before it starts to decline into a contraction.

Economic growth refers to the sustained increase in a country's productive capacity, resulting in a long-term upward trend in output and overall economic well-being.

Technological progress, leading to innovation and increased productivity, is widely recognized as a primary driver of long-term economic growth.

The output gap measures the difference between the economy's potential output (the maximum sustainable output) and its actual output, indicating the extent of underutilization of resources.

Expansionary fiscal policy, involving increased government spending or tax cuts, is often used to stimulate aggregate demand and close an output gap caused by insufficient demand.

The potential output growth rate represents the maximum sustainable rate at which an economy can grow without experiencing inflationary pressures.

Labor force growth, reflecting the increase in the number of workers available, is a key determinant of a country's potential output growth rate.

Business cycles represent the cyclical fluctuations in economic activity around its long-term trend, characterized by alternating periods of expansion and contraction.

Investment, particularly in fixed capital, is a key contributor to business cycle fluctuations, as it can lead to changes in aggregate demand and overall economic activity.

Economic persistence refers to the tendency for economic fluctuations to continue for an extended period, with shocks or disturbances having lasting effects on economic activity.

Expansionary monetary policy, involving actions such as lowering interest rates or increasing the money supply, is often used to stimulate aggregate demand and address business cycle fluctuations caused by demand-side shocks.

Growth slowdown refers to the tendency for economic growth to decelerate as an economy approaches its full potential, often due to diminishing returns to capital and labor.

Institutional quality, encompassing factors such as rule of law, property rights protection, and corruption control, is a key challenge for achieving sustained economic growth in developing countries.