The 45-Degree Line as a Representation of Goods Market Equilibrium
Within the multiplier model's graphical framework, the 45-degree line serves a crucial function by illustrating all potential points of equilibrium. Specifically, any point on this line signifies a state where the total value of aggregate output—representing the production of all goods and services in the economy—is precisely equal to the total aggregate demand for those goods and services.
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Introduction to Macroeconomics Course
Ch.3 Aggregate demand and the multiplier model - The Economy 2.0 Macroeconomics @ CORE Econ
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Ch.5 Macroeconomic policy: Inflation and unemployment - The Economy 2.0 Macroeconomics @ CORE Econ
Related
Investment Volatility as a Driver of Business Cycles
Multiplier Process
Output Adjustment Assumption in the Multiplier Model
Simplified Multiplier Model (Closed Economy without Government)
Assumption of Unplanned Inventory Investment
The 45-Degree Line as a Representation of Goods Market Equilibrium
Empirical Investigation of the Multiplier
Role of the Marginal Propensity to Consume in Determining the Multiplier's Size
A Two-Household Model for the Multiplier
Variability of the Multiplier in Practice
Output Determination by Aggregate Demand
Direct and Indirect Effects of an Aggregate Demand Shock
Conditions for a Multiplier Less Than One
Fall in Business Confidence as a Trigger for the Multiplier Process
An economy experiences a sudden, one-time increase of $50 billion in autonomous investment spending on new factories. Assuming no other changes, what is the most likely ultimate effect on the economy's total output as described by the multiplier model?
Comparing Economic Responses to a Spending Shock
A wave of pessimism about the future of the economy causes firms to significantly reduce their spending on new machinery and buildings. According to the logic of the multiplier model, arrange the following events in the chronological sequence that would follow this initial shock.
Analysis of the Economic Amplification Effect
Explaining the Amplification of Spending
According to the multiplier model, if a government reduces its spending by $100 million to balance its budget, the total output of the economy will also decrease by exactly $100 million, as the reduction in demand is directly offset by the decrease in government expenditure.
Match each stage of the economic process described below with its correct description, illustrating how an initial change in spending is amplified.
In a simplified economy, a firm spends an initial $1,000 on new machinery. This $1,000 becomes income for the machinery's producers. If these producers, in turn, spend 80% of this new income on other goods and services, this second round of spending will add an additional $____ to the economy's total demand.
Evaluating Economic Stimulus Policies
An economy experiences a $10 billion increase in autonomous investment. In which of the following scenarios would this initial change in spending lead to the largest total increase in national output?
Demand-Determined Output Assumption of the Multiplier Model
The 45-Degree Line as a Representation of Goods Market Equilibrium
An economy is in a stable state where the total value of goods and services being produced each month is equal to the total amount being purchased. Which of the following independent events would cause the economy to move to a new, different stable state?
Economic Adjustment to Disequilibrium
Assessing Economic Stability
In the context of a simple economic model where total spending determines total output, if businesses observe that their inventories of unsold goods are unexpectedly increasing, it signifies that the economy is in a stable, self-perpetuating state.
Calculating Equilibrium Output
Characteristics of Economic Equilibrium
An economy is currently producing a total output of $500 billion. At this level of output, the total planned spending (aggregate demand) by households and firms is also exactly $500 billion. Assuming no external changes to spending behavior or investment plans, what is the most likely outcome for the economy's total output in the subsequent period?
In a closed economy with no government, suppose that the total value of all goods and services produced in a given period is $800 billion. However, the total planned spending by households and firms during the same period is only $750 billion. Based on this information, what is the most likely immediate consequence for the economy?
Analyzing Economic Stability
Match each economic scenario, defined by the relationship between total output (Y) and aggregate demand (AD), with its most likely consequence for business inventories and future production decisions.
Exogenous Shock
Goods Market Equilibrium Condition (Formula)
Empirical Estimation of the Multiplier
Learn After
In a standard goods market diagram with aggregate output (Y) on the horizontal axis and aggregate demand (AD) on the vertical axis, imagine a point representing the economy's current state is located above the 45-degree line. Which of the following statements accurately analyzes this economic situation?
The 45-Degree Line and Equilibrium
In a standard goods market diagram with aggregate output (Y) on the horizontal axis and aggregate demand (AD) on the vertical axis, match each economic scenario to its correct position relative to the 45-degree line.
Analyzing Goods Market Disequilibrium
In a graphical model where aggregate output is on the horizontal axis and aggregate demand is on the vertical axis, any point representing the current state of the economy must lie on the 45-degree line.
In a graphical model of the goods market with aggregate output on the horizontal axis and aggregate demand on the vertical axis, the 45-degree line represents all points where aggregate output is ______ to aggregate demand.
You are constructing a graphical model to find the equilibrium level of output in an economy. The model uses a horizontal axis for aggregate output (Y) and a vertical axis for aggregate demand (AD). Arrange the following steps in the correct logical sequence to identify this equilibrium point.
Evaluating the 45-Degree Line as an Analytical Tool
An economy is currently producing an aggregate output (Y) of $800 billion. The total planned spending, or aggregate demand (AD), in this economy is $750 billion. In a standard goods market diagram with Y on the horizontal axis and AD on the vertical axis, how would this situation be represented and what is the economic implication?
In a standard goods market diagram with aggregate output (Y) on the horizontal axis and aggregate demand (AD) on the vertical axis, a point representing the economy's state lies on the 45-degree line at an output level of $500 billion. What does this specific location on the graph signify for the economy?
Description of the 45-Degree Line Diagram (Figure 3.13)