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Sensitivity Analysis

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Definition:
A technique used to determine how different input variables impact a specific outcome in a predictive model.

Key Components:

  • Independent Variables: Factors that may influence the outcome.
  • Dependent Variables: The key result being measured.
  • Scenario Testing: Running multiple cases to observe outcome variations.

Use Cases/Industries:

  • Project Estimation: Assessing how cost variations affect total budgets.
  • Energy Pricing Models: Evaluating how fuel price fluctuations impact operating costs.
  • Engineering & Design: Understanding material selection effects on durability.

Advantages:

  • Identifies Critical Cost Drivers: Helps focus on factors with the most impact.
  • Improves Strategic Planning: Allows for better risk mitigation.
  • Enhances Resource Allocation: Optimizes cost and scheduling decisions.

Challenges:

  • Requires Accurate Baseline Data: Poor inputs can lead to misleading conclusions.
  • Time-Consuming: Running multiple scenarios can be complex.
  • Nonlinear Dependencies: Some models may not account for real-world interdependencies.

Related Terms:
Monte Carlo Simulation, Probabilistic Modeling, Cost Forecasting

Example:
An oil and gas company uses sensitivity analysis to determine how a 10% increase in crude oil prices would impact refinery operating costs.

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Synonyms:
What-If Analysis, Scenario Analysis, Input-Output Impact Assessment
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