economics

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Across
  1. 3. the additional income from each increase of one unit of sales
  2. 5. fixed and variable costs
  3. 6. additional opportunity cost from each increase of one unit of sales
  4. 8. the (negative) cost of choosing to do one thing instead the other.
  5. 9. giving up one alternative good or service for another.
Down
  1. 1. model that compares marginal costs and marginal benefits
  2. 2. an expense that does not change
  3. 4. an expense that changes depending on how much a business produces
  4. 7. the money a business receives from selling its goods or services