Wednesday, January 11, 2017

1/11/17: Elasticity of Demand

Elasticity of Demand
  • Elasticity of Demand: Measure of how consumers react to a change in price.
  • Elastic Demand: Demand that’s very sensitive to a change in price.
    • Greater than 1 (G > 1)
    • Product not a necessity
    • Available substitutes
    • Ex) Steak, fur coat, soda


  • Inelastic Demand: Demand that isn’t very sensitive to a change in price.
    • Less than 1 (L < 1)
    • Product is a necessity
    • There are few to no substitutes
    • Ex) Gas, insulin

  • Unitary Elastic:
    • Equal to 1 (E = 1)



  • Quantity-
New Quantity – Old Quantity / Old Quantity


  • Price-
New Price – Old Price / Old Price


  • Price Elasticity of Demand (PED)-


% Change in Quantity / % Change in Price

1 comment:

  1. Overall, I think you did a good job of providing all of the information. One thing that I think is key, and that is missing is adding the terms "In a perfect society" when it comes to unitary elastic because it lets us know that it is highly unlikely to occur. this helps us further understand these concepts. Also, i like that you get right to the point, but in some instances a bit of specificity will help to further understand this concept.

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