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Also known as: CBA
A systematic approach that compares discounted costs and benefits to determine the net value of a decision or project.
DESCRIPTION
Cost-benefit analysis estimates net economic value by quantifying and discounting all relevant costs and benefits over time. It informs investments, policies, and product decisions by comparing alternatives and identifying optimal choices. Sensitivity analysis explores uncertainty across key variables like adoption, cost, and discount rates. Distributional impacts and non-monetary effects may require shadow pricing or multi-criteria methods. Transparent assumptions and rigorous documentation ensure credibility and comparability of results.
ALTERNATIVE DEFINITIONS
Wikipedia
Cost–benefit analysis (CBA) is a systematic process for calculating and comparing benefits and costs of a project, decision or government policy.
Emphasizes systematic calculation and comparison across options.
OECD
Cost-benefit analysis is a technique that compares the costs and benefits of projects or policies to determine whether they are worthwhile.
Public policy framing focused on worthiness assessments.
U.S. EPA
Cost-benefit analysis is a method of decision-making that weighs the total expected costs against the total expected benefits of one or more actions.
Environmental economics context with expected totals.
RELATED TERMS
Net Present Value Discount Rate Sensitivity Analysis Risk Assessment Opportunity Cost Business Case Benefit Realization Value Stream Cost Modeling
COMPETING TERMS
Cost-Effectiveness Analysis Return on Investment
KNOWLEDGE AREAS
Data Monetization Transformation Process Domain & Business Context Data Management
TARGET AUDIENCE
Chief Data Officer Data Strategy Consultant Business Analyst IT Project Manager Product Owner Digital Transformation Manager Chief Technology Officer
EXTERNAL SOURCES
- Wikipedia - Cost–benefit analysis
- HM Treasury (UK) - Green Book guidance on appraisal/CBA
- World Bank - CBA and project appraisal resources
- MIT OpenCourseWare - Lecture notes on CBA in transport
TOP QUESTIONS
What is the goal of Cost-Benefit Analysis?
To determine whether a project or policy yields net positive value by comparing discounted benefits and costs.
Category: Overview
How do you discount in Cost-Benefit Analysis?
Apply a discount rate to future cash flows to compute net present value and compare alternatives.
Category: Method
What are common mistakes in Cost-Benefit Analysis?
Double counting benefits, ignoring externalities, misestimating adoption, and using inconsistent time horizons or discount rates.
Category: Mistakes
How do uncertainty and sensitivity analysis fit in?
Test key variables across plausible ranges to see how conclusions change, informing robust decisions.
Category: Practice
Is Cost-Benefit Analysis only monetary?
Primarily, but non-monetary impacts can be monetized via shadow pricing or addressed with complementary multi-criteria analysis.
Category: Clarification
What is a hot topic around Cost-Benefit Analysis?
Equity-weighted analyses consider distributional effects, aligning decisions with social objectives.
Category: Topic
How do you build a business case using Cost-Benefit Analysis?
Define scope, quantify costs and benefits, apply discounting, test sensitivity, and document assumptions and risks.
Category: Guidance
What’s the difference between ROI and Cost-Benefit Analysis?
ROI is a simple ratio; CBA is comprehensive, time-adjusted, and considers all relevant costs and benefits.
Category: Clarification
Who should be involved in Cost-Benefit Analysis?
Finance, product, operations, and stakeholders with domain expertise to validate assumptions and values.
Category: Collaboration