Valuation of Environmental Goods | UGC NET Economics – Notes

Introduction

Environmental goods and services—clean air, water, biodiversity, forests, climate stability—are typically non-market goods, meaning they lack conventional market prices because they are not bought and sold in organized markets. Yet economic decision-making, cost-benefit analysis, and policy formulation require that these goods be assigned some measure of value. Environmental valuation is the branch of environmental economics concerned with estimating the monetary worth of environmental goods and services, so that they can be compared with market-priced goods in social cost-benefit analysis (SCBA), welfare analysis, and natural resource accounting. The central premise is that even though nature does not present a price tag, individuals and society do place a value—reflected in willingness to pay for environmental improvements or willingness to accept compensation for environmental degradation.

Why Valuation Is Needed

Several reasons justify the need for environmental valuation. First, market failure arises because environmental goods often possess characteristics of public goods (non-rivalry and non-excludability) and involve externalities, so private markets fail to allocate them efficiently. Second, policymakers need a common metric—usually money—to weigh environmental benefits against economic costs when evaluating projects such as dams, highways, or industrial plants. Third, valuation assists in natural resource accounting and the computation of Green GDP, which adjusts conventional GDP for environmental depletion and degradation. Fourth, valuation underlies the Polluter Pays Principle and the design of Pigovian taxes, since correcting an externality requires knowing its monetary magnitude.