3 Micro (Fach) / 0. Formulas (Lektion)

In dieser Lektion befinden sich 10 Karteikarten

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  • Inverse Elasticity Rule 1/E + P-MC/P
  • Monopoly Mark-up 1/E-1 • MC  
  • MC for firm TC(Q) – TC(Q-1) VC(Q) – VC(Q-1) dTC/dQ = AVC
  • Income Elasticity of Demand dQ / dY • Y / Q Increase in Quantity / Increase in Income 
  • Price Elasticity of Demand dQ / dP • P / Q Increase in Quantity / Change in Price 
  • Ration consumer surplus to total surplus CS / TS = ( N / N + 1 )2
  • Ration - Producer Surplus to Total Surplus PS / TS = ( 2N / N + 1 )2
  • Ration DWL to TS DWL / TS = ( 1 / N + 1 )2 Ratio of DWL to total surplus diminishes at a quadratic rate as number of firms in an industry increase. For Monopoly, DWL is 25% of TS - For 4 firms it declines to 4% of  TS
  • Ambiguous Effect of 2 Shocks Shocks in same direction: Q ↑ ambiguous effect on P
  • Demand is elastic if.. e>1 1% price increase reduces quantity sold by more than 1% Quantity responds more than proportionally to price changes Top of the Demand Curve