1. The Expenditure-Output Diagram The aggregate expenditure-output model shows aggregate expenditures on the vertical axis and real GDP on the horizontal axis. A vertical line shows potential GDP where full employment occurs. The 45-degree line shows all points where aggregate expenditures and output are equal.
What is the algebraic equation for the output expenditure model?
The equation for the 45-degree line is the set of points where GDP or national income on the horizontal axis is equal to aggregate expenditure on the vertical axis. Thus, the equation for the 45-degree line is: AE = Y.
What does the i stand for in the output expenditure model of GDP c’i G +( XM?
GDP = C + I + G + (X-M). Each letter in the equation represents a sector, or piece, of the economy. I is the investment sector (aka investment spending or business spending). It includes: Money spent on commercial/business structures and buildings.
What happens when output is greater than aggregate?
If aggregate expenditure exceeds the potential output of the economy, then firms must pay higher prices for its factors of production, including overtime to its workers, and pay higher variable costs when using existing facilities for longer time periods to increase production.
Why AS curve is 45 degree?
Explanation: The Aggregate Supply curve is represented by the 45° line. Throughout this line the planned expenditure is equal to the planned output. The implication of 45° line is that in case of any disequilibrium, AS will be adjusted in a way to equate AD in order to restore equilibrium back.
Why is income curve 45 degrees?
The reason why these diagrams have this 45-degree line is that for every point on the line, the value of whatever is being measured on the x-axis is equal to the value of whatever is being measured on the y-axis. Equilibrium national income occurs where Y = E, and this would be every point on the 45 degree line.
What is the expenditure approach?
The expenditure approach is a method for calculating a nation’s gross domestic product (GDP) by considering the private sector, investor, and government spending as well as net exports. GDP is a measure of the total value of goods and services produced within a nation’s borders at the current market value.
Why is aggregate supply 45 degrees?
The Aggregate Supply curve is represented by the 45° line. Throughout this line the planned expenditure is equal to the planned output. That is AS = Y = Expenditure. The implication of 45° line is that in case of any disequilibrium, AS will be adjusted in a way to equate AD in order to restore equilibrium back.
What angle is 45?
What is a 45-Degree Angle? A 45-degree angle is exactly half of a 90-degree angle formed between two rays. It is an acute angle and two angles measuring 45 degrees from a right angle or a 90-degree angle. We know that an angle is formed when two rays meet at a vertex.
What happens below the 45 degree line?
At point H, the level of aggregate expenditure is below the 45-degree line, so that the level of aggregate expenditure in the economy is less than the level of output. As a result, at point H, output is piling up unsold—not a sustainable state of affairs.
What is the total expenditure?
The sum of the price paid for one or more products or services multiplied by the amount of each item purchased.
How do you solve an expenditure approach?
expenditure approach: The total spending on all final goods and services (Consumption goods and services (C) + Gross Investments (I) + Government Purchases (G) + (Exports (X) – Imports (M)) GDP = C + I + G + (X-M). depreciation: The measurement of the decline in value of assets.
What are the advantages of expenditure approach?
Advantages of Expenditure Approach It is simple to understand and easy to calculate and universally can be used to compare figures with other nations. It does help the economist and the other persons concerned in formulating a general direction in which an economy may be heading.
