Income And Employment

Step 1: Understanding the Concept:
In a healthy economy, full employment does not mean that of the workforce is working. It refers to a state where the demand for labor equals the supply of labor at the prevailing wage.
Step 2: Detailed Explanation:
Key aspects of full employment:
1. Absence of Involuntary Unemployment: This occurs when everyone who is willing and able to work at the current wage rate finds a job.
2. Presence of Natural Unemployment: Even at full employment, there is always some "Frictional Unemployment" (people between jobs) and "Structural Unemployment" (mismatch of skills).
3. Voluntary Unemployment: People who choose not to work at the given wage are not counted as "unemployed" in the context of the full employment target.
Keynesian economics defines it as the point where further increases in aggregate demand lead to inflation rather than more output.
Step 3: Final Answer:
Full employment is a state of the economy where all those who are able and willing to work at existing wages are employed, except for those undergoing brief transitions between jobs.

Step 1: Understanding the Concept:
The Investment Multiplier measures the ratio of the change in National Income to the initial change in Investment. It explains how an initial injection of spending leads to a much larger increase in final income.
Step 2: Key Formula or Approach:
The relationship is expressed by the formula:

Step 3: Detailed Explanation:
- If people spend a larger portion of their extra income ( is high), the money circulates more in the economy, creating more income for others.
- Example 1: If , then . An investment of ₹100 leads to an income increase of ₹200.
- Example 2: If , then . An investment of ₹100 leads to an income increase of ₹500.
Thus, as increases, the multiplier effect becomes stronger.
Step 4: Final Answer:
The value of the multiplier depends directly on the ; a higher propensity to consume leads to a higher value of the multiplier.

Step 1: Understanding the Concept:
The concept of the Investment Multiplier ( ) describes how an initial change in investment ( ) leads to a final change in national income ( ).
The magnitude of this multiplier is determined by the Marginal Propensity to Consume (MPC).
A higher MPC indicates that people spend more of their additional income, leading to a larger circular flow and a higher multiplier effect.
Step 2: Key Formula or Approach:
1. Investment Multiplier ( ) =
2. Change in Income ( ) =
3. Total Income ( ) = Initial Income ( ) + Change in Income ( )
Step 3: Detailed Explanation:
Given Data:
Initial Income ( ) = Rs. 80,000 Cr.
Change in Investment ( ) = Rs. 7,000 Cr.
Marginal Propensity to Consume (MPC) = 0.50
Calculation for Multiplier (k):

Calculation for (i) Increase in Income ( ):


Calculation for (ii) Total Income of the Economy:


Step 4: Final Answer:
(i) The income will increase by Rs. 14,000 Crore.
(ii) The total income of the economy will be Rs. 94,000 Crore.

Step 1: Understanding the Concept:
In a practical sense, full employment does not mean 0% unemployment.
It refers to a state where there is no "involuntary unemployment".
Step 2: Detailed Explanation:
- Involuntary Unemployment: When people are willing and able to work at the existing wage rate but cannot find work.
- Voluntary Unemployment: When people choose not to work at the prevailing wage rate. This still exists at full employment.
- Even at full employment, there may be "frictional" or "structural" unemployment due to job transitions or changes in technology.
Step 3: Final Answer:
Full employment is a state where everyone who is willing and able to work at the prevailing wage rate gets employment.

Step 1: Understanding the Concept:
The Marginal Propensity to Consume (MPC) is an economic measure that quantifies the induced consumption.
It represents the proportion of an aggregate raise in pay that a consumer spends on the consumption of goods and services, rather than saving it.
In a Keynesian consumption function, MPC represents the slope of the consumption line.
Step 2: Key Formula or Approach:
The formula for Marginal Propensity to Consume (MPC) is the ratio of the change in consumption ( ) to the change in income ( ).
Mathematically, it is expressed as:

Where:
= Change in Consumption Expenditure
= Change in Disposable Income
Step 3: Detailed Explanation:
To distinguish MPC from other related concepts:
1. Average Propensity to Consume (APC): It is the ratio of total consumption to total income at a specific level, given by .
2. Marginal Propensity to Save (MPS): It is the ratio of the change in savings to the change in income, given by .
In the given options:
- Option (A) is the formula for APC.
- Option (C) is the reciprocal of MPC and does not have a standard economic label.
- Option (D) correctly matches the definition of MPC, showing how much extra consumption is generated per unit of extra income.
Usually, , as people typically consume some but not all of their additional income.
Step 4: Final Answer:
The correct formula for Marginal Propensity to Consume is .