Cost–benefit analysis
Systematic approach to estimating strengths and weaknesses of alternatives.
Cost–benefit analysis (CBA), also called benefit–cost analysis, is a systematic approach to estimating the strengths and weaknesses of alternatives. It is used to determine options that provide the best approach to achieving benefits while preserving savings in transactions, activities, and functional business requirements. CBA is commonly used to evaluate business or policy decisions, commercial transactions, and project investments, and is often employed by organizations to appraise the desirability of a given policy.
- field
- Economics and public policy analysis
- known_for
- Systematic approach to comparing benefits and costs of decisions, projects, or policies
- related_techniques
- Cost-effectiveness analysis, cost–utility analysis, risk–benefit analysis, economic impact analysis, fiscal impact analysis, social return on investment (SROI) analysis
- key_application
- Evaluating business and public policy decisions, including U.S. Securities and Exchange Commission regulations
Lore & Background
The concept of cost–benefit analysis dates back to an 1848 article by Jules Dupuit, who pioneered the approach by calculating the social profitability of a project like the construction of a road or bridge. Dupuit determined that the best method of measuring utility is by learning one's willingness to pay for something, taking the sum of each user's willingness to pay to measure social benefit. The cost of the project was calculated by summing materials, labor, and maintenance. The Corps of Engineers initiated the use of CBA in the US after the Federal Navigation Act of 1936 mandated cost–benefit analysis for proposed federal-waterway infrastructure, and the Flood Control Act of 1939 established CBA as federal policy.
Reader's Guide
Cost–benefit analysis has been applied to broader public policy beginning with the work of Otto Eckstein, who laid out a welfare economics foundation for CBA and its application to water-resource development in 1958. It was applied in the US to water quality, recreational travel, and land conservation during the 1960s, and the concept of option value was developed to represent non-tangible value of resources such as national parks. CBA was expanded to address intangible and tangible benefits of public policies relating to mental illness, substance abuse, college education, and chemical waste. The National Environmental Policy Act of 1969 required CBA for regulatory programs in the US, and other governments have enacted similar rules. The accuracy of CBA depends on the accuracy of individual cost and benefit estimates, and comparative studies indicate that such estimates are often flawed, preventing improvements in Pareto and Kaldor–Hicks efficiency. Interest groups may attempt to include or exclude significant costs to influence outcomes.
Did You Know?
- The U.S. Securities and Exchange Commission must conduct cost–benefit analyses before instituting regulations or deregulations.
- The Corps of Engineers initiated the use of CBA in the US after the Federal Navigation Act of 1936 mandated cost–benefit analysis for proposed federal-waterway infrastructure.
- Cost–benefit analysis has been applied to decisions regarding investments in cybersecurity-related activities, such as the Gordon–Loeb model.
- The concept of CBA dates back to an 1848 article by Jules Dupuit.
Frequently Asked Questions
Who is Cost–benefit analysis?
Cost–benefit analysis is a structured decision-making framework in economics and public policy that weighs the advantages and disadvantages of competing options. It helps organizations and governments pick the path that delivers the most value while keeping spending in check.
What are Cost–benefit analysis's powers/role?
Its core ability is to systematically compare the expected benefits against the projected costs of a given course of action. It is routinely applied to business investments, commercial deals, and government policy choices to surface the strongest alternative.
How does Cost–benefit analysis's story end?
The process concludes with a clear recommendation: the option that maximizes net benefit while preserving savings across transactions and operational needs. In practice, this means one policy or project is selected over its rivals for implementation.
Why is Cost–benefit analysis important?
It provides a transparent, repeatable lens for evaluating high-stakes decisions, from corporate strategy to U.S. Securities and Exchange Commission regulatory actions. Without it, organizations would lack a common yardstick for judging whether a policy or investment is truly worthwhile.
Who are Cost–benefit analysis's closest allies?
It frequently works alongside related techniques such as cost-effectiveness analysis, cost–utility analysis, risk–benefit analysis, and social return on investment (SROI) analysis. Together they form a broader toolkit for assessing economic impact, fiscal consequences, and social value.
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