Macroeconomic Models and National Income
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Questions and Answers

Autonomous consumption is denoted by ______ and shows the consumption which is independent of income.

C

Induced consumption, denoted as ______, shows the dependence of consumption on income.

cY

The marginal propensity to consume (MPC) is defined as the rate of change of consumption as income changes, calculated as ∆C/∆______.

Y

The maximum value which MPC can take is ______.

<p>1</p> Signup and view all the answers

Generally, MPC lies between ______ and 1, inclusive of both values.

<p>0</p> Signup and view all the answers

Planned investment refers to the amount a producer intends to add to her ______.

<p>inventory</p> Signup and view all the answers

If a producer's sales exceed her planned amount, her actual investment is calculated as Rs ______.

<p>70</p> Signup and view all the answers

Ex-ante measures depict what has been ______.

<p>planned</p> Signup and view all the answers

The most important determinant of consumption demand is household ______.

<p>income</p> Signup and view all the answers

Autonomous consumption occurs even if income is ______.

<p>zero</p> Signup and view all the answers

The relationship between consumption and income is described by the consumption ______.

<p>function</p> Signup and view all the answers

In the consumption function, the equation C = C + cY shows consumption as a function of ______.

<p>income</p> Signup and view all the answers

Ex-post measures reflect what has actually ______.

<p>happened</p> Signup and view all the answers

The basic objective of macroeconomics is to develop theoretical tools called ______.

<p>models</p> Signup and view all the answers

The assumption of ceteris paribus literally means ‘other things remaining ______.

<p>equal</p> Signup and view all the answers

In this chapter, we deal with the determination of National Income under the assumption of fixed ______ of final goods.

<p>price</p> Signup and view all the answers

John Maynard ______ is the economist whose theory underlies the model used in this chapter.

<p>Keynes</p> Signup and view all the answers

In National Income Accounting, consumption is an example of a component of ______.

<p>aggregate demand</p> Signup and view all the answers

The actual or accounting values of economic items are referred to as ______ measures.

<p>ex post</p> Signup and view all the answers

In this context, consumption may denote what people had planned to ______ during a given period.

<p>consume</p> Signup and view all the answers

The total output of final goods and services in an economy is referred to as ______.

<p>GDP</p> Signup and view all the answers

Flashcards

What is the purpose of macroeconomic models?

Macroeconomic models aim to explain how economic variables like national income, price level, and interest rates are determined.

Ceteris Paribus

The assumption of ceteris paribus means that all other variables are held constant while analyzing the relationship between two specific variables.

Ex post measures

Ex post measures refer to the actual values of economic variables, such as consumption or investment, as measured in a specific period.

Ex ante measures

Ex ante measures refer to the planned or intended values of economic variables, such as planned consumption or investment.

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Aggregate Demand

Aggregate demand is the total demand for goods and services in an economy at a given price level.

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Components of Aggregate Demand

Components of aggregate demand include consumption (C), investment (I), government spending (G), and net exports (NX).

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Keynesian Model

The Keynesian model is a macroeconomic theory that emphasizes the role of aggregate demand in determining the level of output and employment in an economy.

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What is the focus of this chapter?

This chapter focuses on determining national income under the assumption of fixed prices and a constant interest rate.

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Planned Investment

The amount of investment a producer plans to add to their inventory in a given period.

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Actual (Ex Post) Investment

The actual amount of investment added to the inventory after all factors are considered during the period.

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Ex Ante Values

The planned values of economic variables such as consumption, investment, or output of final goods.

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Ex Post Values

The actual values of economic variables such as consumption, investment, or output of final goods.

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Consumption Function

The relationship between consumption and income.

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Autonomous Consumption

The level of consumption that occurs regardless of income.

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Marginal Propensity to Consume (MPC)

The change in consumption expenditure for each unit change in income.

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Autonomous Consumption (C)

The portion of consumption that doesn't depend on income. It represents spending that happens even when income is zero, like basic necessities.

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Induced Consumption (cY)

The part of consumption that changes in response to changes in income. It's how much spending increases when income rises.

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Maximum Value of MPC

The maximum value of MPC is 1, meaning that every extra dollar of income is spent on consumption. This indicates no saving of the extra income.

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Range of MPC Values

The MPC can range from 0 to 1, indicating that either no extra income is spent on consumption (MPC = 0) or all extra income is spent on consumption (MPC = 1), or anywhere in between.

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Study Notes

Determination of Income and Employment

  • National income, price level, and interest rates are analyzed to understand their determinants.
  • Macroeconomic models aim to explain processes determining these variables.
  • Models explain factors like slow growth, recessions, rising prices, and unemployment.
  • The ceteris paribus assumption is crucial when analyzing a particular variable, holding other variables constant.
  • The method involves solving for one variable in terms of another, then substituting into the other equation.

Aggregate Demand and its Components

  • National income accounting concepts (consumption, investment, GDP) have dual meanings.
  • Ex-post measures represent actual values in a given year.
  • Ex-ante measures represent planned values.
  • Consumption is influenced by income.
  • A simple consumption function assumes a constant rate of change in consumption as income changes.
  • Autonomous consumption is the consumption that occurs even when income is zero.
  • Induced consumption responds to changes in income.
  • The marginal propensity to consume (MPC) is the rate of change in consumption with respect to income.
  • MPC can range from 0 to 1.
  • Investment is additions to physical capital and inventory changes.
  • Investment decisions are influenced by factors like interest rates.
  • Aggregate demand (AD) equals consumption (C) plus Investment (I) plus c.Y (where c = MPC and Y = income)

Determination of Income in Two-Sector Model

  • AD = C + I, substituting values of C and I yields AD= 𝐶+𝐼+ c. Y
  • Equilibrium in the final goods market (Y = AD), simplified as Y = A + cY (A =C + I)
  • Autonomous expenditure (A) is the sum of autonomous consumption and investment.
  • Ex-ante output (Y) equals planned aggregate demand.
  • Equilibrium requires ex-ante supply equals ex-ante demand.
  • Changes in inventory represent the difference between planned and actual output.

Determination of Equilibrium Income in the Short Run

  • Equilibrium in a single market (in microeconomics) is determined by the intersection of demand and supply curves.
  • Macroeconomics analysis has two stages: analyzing equilibrium with a fixed price level, and then allowing the price level to vary.
  • Equilibrium is when aggregate demand equals aggregate supply.
  • A 45-degree line represents aggregate supply in a simple macro model.

Effect of an Autonomous Change in Aggregate Demand

  • Changes in aggregate demand affect the equilibrium income.
  • Autonomous changes in consumption (C) or investment (I) shift the aggregate demand (AD) curve.
  • This causes a change in equilibrium income (Y).

The Multiplier Mechanism

  • The increase in equilibrium income exceeds the initial change in autonomous expenditure (i.e., multiplier effect)
  • The multiplier effect occurs because an initial change in spending leads to a chain reaction of further spending.
  • Consumption increases with income, further increasing demand, causing further output changes, leading to a larger income change.
  • The investment multiplier (ΔY/ΔA) equals 1/(1-c) where c=MPC (marginal propensity to consume).

Paradox of Thrift

  • Increased saving (and thus a higher marginal propensity to save, or MPS) can lead to decreased total output, income and reduced aggregate spending.

More Concepts

  • Full employment is when all factors of production are engaged.
  • Equilibrium level of income can be above or below full employment.
  • Deficient demand (low demand) leads to falling prices.
  • Excess demand (high demand) leads to rising prices.

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Description

Explore the determination of income and employment through macroeconomic models. This quiz covers key concepts such as aggregate demand, components of national income, and the roles of consumption and investment in the economy. Test your understanding of the relationships between these variables and their impact on economic conditions.

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