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PMPCAPM

Opportunity Cost

Opportunity cost is the value of the next best alternative that is forgone when a decision is made to pursue a particular project or course of action.

Explanation

Every time an organization selects one project, it implicitly rejects alternatives. The opportunity cost is the value of the best rejected alternative. If an organization chooses Project A (expected return $500,000) over Project B (expected return $400,000), the opportunity cost of choosing Project A is $400,000—the value they gave up.

Opportunity cost is a fundamental economic concept that helps decision-makers understand the true cost of their choices. It is not a cash expense that appears on financial statements; rather, it represents the potential benefit that could have been gained from a different allocation of resources.

On the exam, opportunity cost questions typically present two or more project options and ask you to identify the opportunity cost of selecting one. Remember: the opportunity cost is always the value of the option you did not choose—specifically the highest-value alternative forgone.

Key Points

  • The value of the best alternative not chosen
  • Not a cash expense but an economic concept
  • Critical for informed project selection decisions
  • Always equals the value of the next best alternative forgone

Exam Tip

Opportunity cost equals the value of the project NOT selected. If you choose a $1M NPV project over a $750K NPV project, the opportunity cost is $750K.

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