Economic Valuation of Public Goods

Economic valuation of public goods seeks to assign monetary values to goods and services that are not traded in conventional markets, such as clean air, biodiversity, cultural heritage and climate regulation. Central to this endeavour are revealed-preference methods, which infer values from observed behaviour in related markets, and stated-preference methods, which elicit values directly from individuals through surveys. Contingent valuation and discrete choice experiments are the principal stated-preference approaches, offering a framework for estimating individuals’ willingness to pay for marginal changes in public-good provision. Advances in econometric modelling have improved the treatment of preference heterogeneity, protest responses and scope sensitivity, thereby enhancing the credibility of non-market estimates. Economic valuation informs cost–benefit analyses, guides environmental policy, supports ecosystem restoration and underpins resource management at global and local scales. By translating ecological and social benefits into commensurable metrics, valuation studies bridge the gap between environmental stewardship and fiscal decision-making, offering robust evidence for sustainable public investment and regulatory design.

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Economic Valuation of Public Goods publication trend

The graph below shows the total number of articles in economic valuation of public goods across all publications each year (not limited to Nature Index journals).

Technical terms

Contingent Valuation Method (CVM): A stated-preference survey technique that asks individuals directly how much they would pay for specified changes in the provision of a public good.

Willingness to Pay (WTP): The maximum amount an individual is prepared to spend to secure a marginal improvement in a public good or avoid its degradation.

Discrete Choice Experiment (DCE): A survey method in which respondents choose between alternatives defined by attributes and levels, allowing estimation of marginal values for each attribute.

Protest Response: A survey reply that rejects the valuation scenario on moral, strategic or institutional grounds rather than expressing true preference for the good.

Scope Sensitivity: The property that willingness to pay increases with the scale, quality or quantity of the public good being valued, used as a validity check in stated-preference studies.

References

1. Analysing decision behavior styles in contingent valuation: The latent class and the factor analysis. China Economic Review (2025).
2. Unveiling the Non-Market Value of a Fragile Coastal Wetland: A CVM Approach in the Amvrakikos Gulf, Greece. Environments (2025).
3. Distinguishing protest responses in contingent valuation: A conceptualization of motivations and attitudes behind them. PLOS ONE (2019).