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9708 · 3.2

Methods and effects of government intervention in markets

9708 AS — taxes, subsidies, regulation, and price controls.

Need to know

What you need to know

  • Shifts the supply curve vertically upwards, increasing price and reducing quantity.
  • Tax incidence depends on relative PED and PES; the more inelastic group bears a larger burden.
  • Creates government revenue but reduces both consumer and producer surplus.
  • Results in a deadweight loss, indicating a loss of allocative efficiency.

Explanation

Methods and effects of government intervention in markets

  1. Shifts the supply curve vertically upwards, increasing price and reducing quantity.
  2. Tax incidence depends on relative PED and PES; the more inelastic group bears a larger burden.
  3. Creates government revenue but reduces both consumer and producer surplus.
  4. Results in a deadweight loss, indicating a loss of allocative efficiency.