If the income elasticity for lobster is 0.4, a 40% increase in income will lead to a:*   10% drop in demand for lobster.   16% increase in demand for lobster.   20% increase in demand for lobster.   4% increase in demand for lobster.

ENGR.ECONOMIC ANALYSIS
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Chapter1: Making Economics Decisions
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If the income elasticity for lobster is 0.4, a 40% increase in income will lead to a:*
  10% drop in demand for lobster.
  16% increase in demand for lobster.
  20% increase in demand for lobster.
  4% increase in demand for lobster.


You are the manager of a supermarket, and you know that the income elasticity of peanut butter is exactly –0.7. Due to the economic recession, you expect incomes to drop by 15% next year. How should you adjust your purchase of peanut butter?*
  Buy 10.5% more peanut butter.
  Buy 2.14% more peanut butter.
  Buy 6.2% less peanut butter.
  Buy 9.8% less peanut butter.

When total revenue of the seller decreased caused by an increase in price, the demand for the product is said to be _______________.*
  Inelastic
  unit elastic
  elastic
  perfectly elastic

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