draw 2 graphs explaining the information below. How
Taxation Affects Each A. Perfect Competition A per unit tax shifts the supply curve upward. Firms face
higher marginal cost (MC + tax). Market price rises; output falls slightly. Burden of tax shared by consumers and producers depending on elasticity. Individual firms continue producing at P = MC + tax. In the long run, some firms exit; remaining firms still earn zero economic profit. B. Monopoly A per - unit tax increases marginal cost (MC + tax), similar to perfect competition. BUT the monopolist adjusts both price and output strategically. Typically: Output falls more sharply than in competitive markets. Price increases, often by more than the tax amount. Monopolies may shift a larger portion of the tax burden to consumers because of their market power. Deadweight loss increases even further because monopoly already restricts output. Key
difference: Taxes distort a monopolized market much more than a competitive market because the monopolist already under - produces relative to the efficient level
Question:
draw 2 graphs explaining the information below. How
Taxation Affects Each A. Perfect Competition A per unit tax shifts the supply curve upward. Firms face
higher marginal cost (MC + tax). Market price rises; output falls slightly. Burden of tax shared by consumers and producers depending on elasticity. Individual firms continue producing at P = MC + tax. In the long run, some firms exit; remaining firms still earn zero economic profit. B. Monopoly A per - unit tax increases marginal cost (MC + tax), similar to perfect competition. BUT the monopolist adjusts both price and output strategically. Typically: Output falls more sharply than in competitive markets. Price increases, often by more than the tax amount. Monopolies may shift a larger portion of the tax burden to consumers because of their market power. Deadweight loss increases even further because monopoly already restricts output. Key
difference: Taxes distort a monopolized market much more than a competitive market because the monopolist already under - produces relative to the efficient level
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Asked by: Mack
Created at: 2025-12-22 12:24:35
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# Graphs: Taxation in Perfect Competition vs Monopoly
Below are two conceptual graphs illustrating the effects of a per-unit tax on (A) a perfectly competitive market and (B) a monopoly.
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## 1. Perfect Competition: Tax Shifts Supply Curve
**Explanation**:
- The **supply curve** shifts vertically upward by the amount of the tax.
- **New equilibrium**: Price increases from \( P_ \) to \( P_1 \); quantity falls from \( Q_ \) to \( Q_1 \).
- **Burden sharing**: Both consumers and producers share the tax burden, depending on the elasticities of supply and demand.
- **Firm behavior**: Each firm sets output where \( P = MC + \text{tax} \).
- **Long run**: Some firms exit; remaining firms earn zero economic profit.
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## 2. Monopoly: Tax Increases Marginal Cost, Output Falls Sharply
**Explanation**:
- The **monopolist's marginal cost curve** shifts up by the tax amount.
- Monopolist finds new profit-maximizing quantity: intersection of new \( MC + \text{tax} \) and \( MR \).
- **Result**: Output drops more sharply than in perfect competition (\( Q_m \) to \( Q_m' \)), price rises even more (\( P_m \) to \( P_m' \)).
- **Tax burden**: Monopolist can pass more of the tax to consumers due to market power.
- **Deadweight loss**: Increases further, as monopoly already restricts output below the efficient level.
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## Key Differences Summarized
- **Perfect Competition**: Modest reduction in output, tax burden shared.
- **Monopoly**: Larger output reduction, higher price increase, greater inefficiency.
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**Note**: In both cases, the tax raises marginal cost, but the monopoly's strategic output restriction amplifies market distortion and consumer harm.
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