TY  - BOOK
AU  - Laplante,Benoit
ED  - World Bank.
TI  - Estimating willingness-to-pay with random valuation models: an application to Lake Sevan, Armenia 
PY  - 2004///
CY  - Washington, D. C
PB  - World Bank
KW  - Environmental protection
KW  - Armenia
KW  - Sevan Lake
N1  - Also available online; "This paper presents a case study of willingness-to-pay (WTP) estimation using random valuation models.  A contingenet valuation survey was conducted in Yerevan, Armenia to estimate people's WTP for the protection of Lake Sevan.  Three elicitation formats-ope-ended, closed-ended, and the stochastic payment card (SPC) approach-were used with split random samples.  WTP models with heterogeneous errors were constructed and estimated with the survey data.  The SPC approach produces a higher estimation of the  mean WTP than both the open-ended and closed-ended elicitation formats are similar.  Furthermore, contrary to research findings obtained in the United States, this study finds higher WTP estimations with mail surveys than with personal interviews.  This paper - a product of the Infrastructure and Environment Team, Development Research Group is part of a larger effort in the group to u; Includes bibliographical references; Open access
ER  -