Explain the adjustment mechanism, if in an economy, ex-ante Savings are more than ex-ante Investments. Explain the process of working of Investment Multiplier, for a hypothetical economy with Marginal Propensity to Consume (MPC) as 0.8 and Incremental Investment as Rs. 3,000 crore.

Question

Accepted Answer

### Part 1: Adjustment when ex-ante Savings are more than ex-ante Investments

When S > I in an economy:
1. Excess Supply: Households save more than firms invest. Consumption is lower than expected.
2. Unplanned Inventory Accumulation: Firms experience unsold goods piling up.
3. Production Cutback: Firms reduce production to clear excess stock.
4. Income Decline: Lower production reduces employment and income.
5. Saving Reduction: As income falls, saving decreases.
6. Convergence: Process continues until S = I.

Impact: Output decreases, employment falls, income declines.

### Part 2: Working of Investment Multiplier

Given: MPC = 0.5, ΔI = ₹2,000 crore

Multiplier: k = 1/(1-MPC) = 1/(1-0.5) = 1/0.5 = 2

Working:
- Round 1: Initial investment of ₹2,000 crore generates ₹2,000 crore income.
- Round 2: Recipients spend 50% (₹1,000 crore), generating ₹1,000 crore income for others.
- Round 3: Next recipients spend ₹500 crore.
- This continues with each round generating half the income of the previous round.

Total increase in income = k × ΔI = 2 × ₹2,000 = ₹4,000 crore.

The multiplier process shows how an initial investment of ₹2,000 crore leads to a total increase in income of ₹4,000 crore through successive rounds of spending.