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3 Tutorials that teach Equilibrium
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Author: Dan Laub

This lesson covers equilibrium.

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Notes for "Equilibrium"

Key Terms

Aggregate Demand

The total amount of goods and services demanded in an economy at a specific point in time and at a prevailing price level.


Short-run aggregate supply is assumed to maintain the positive price and quantity correlation; more can be produced through increased resource utilization, technological improvements or other factors. SRAS is an upward sloping curve.


Long-run aggregate supply is assumed to be constant in the long-run as in the long-run resources are assumed to be used optimally, leaving no potential for increasing capacity. LRAS is a vertical curve.

Price Level

An aggregate index value that provides an indication of the increase in prices from one period to another; used to evaluate inflation across periods.

RGDP: Real Gross Domestic Product

Gross Domestic Product (the sum of the final value of goods and services produced over a specific time interval and within a country’s national borders.) calculated across time periods using a constant price level.



Measured as a percentage rate of the number of individuals that would like to work and are an active part of the labor force to the number of individuals that comprise the active labor force. Unemployment may be categorized as frictional, structural and cyclical components.



The business cycle period that coincides with the lowest GDP for a given point in time.



The business cycle period that coincides with the maximum obtainable GDP for a given point in time.