Validade e confiabilidade do método de custo de viagem: um estudo aplicado ao Parque Nacional da Serra Geral

摘要

The main purpose of this paper is to analyze the validity and reliability of an economic valuation obtained by travel costs method applied to Serra Geral National Park (Brazil). The review of the theoretical postulates of methodology and of the main literature recommendations adds arguments to analyze the content validity of the estimation and, in order to analyze its reliability, it was simulated the effect of possible sample variations on the final result of valuation.