Valoración económica de la actividad recreativa en el río Colorado

Informal recreation activities derived from Colorado River water flow produce economic benefits. In order to prove this, we used a contingent valuation method (CVM), based on a sur- vey applied to 100 visitors originating mainly from San Luis Rio Colorado; a single bounded econometric analysis was perfor- med on the referendum question of willingness to pay (WTP). Many regressions using Probit and Logit models were run to obtain different estimators of central tendency of WTP. The esti-