A pilot study was conducted to test the potential of the Contingent Va
luation Methodology (CVM) to reveal the value of non-market goods in a
partially monetized subsistence economy. CVM was used to estimate the
willingness to pay, in the form of labor, for potable drinking water
in a rural river-based community located in the Esmeraldas state of no
rthwest Ecuador. Surveys were administered by personal interviews with
families living along the waterways of the Santiago river system who
used river water for cooking, drinking, washing, and waste disposal. T
he mean willingness to pay represented over 23 percent of real income,
or 1.4 days per week for a period of one year. Results of multiple re
gression analysis identified the history of water-related health probl
ems and the number of working adults in a household as significant det
erminants of willingness to pay. Using a non-monetary, rather than a m
onetary, measure of willingness to pay may provide a more accurate rep
resentation of value in a subsistence economy where the use of money i
s limited. The potential for CVM to measure the benefits of non-market
goods in rural developing regions whose economies are only partially
monetized is demonstrated.