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Authors
Country
Spatial Scale
Ecosystem     Category
Valuation Subject
Ecosystem stock valued
Ecosystem Service Category
Ecosystem Service Valued
Valuation Method
Types of values estimated

MARINE VALUATION FICHE

BASIC DATA

Title
Information and willingness to pay in a contingent valuation study: The value of S. Erasmo in the Lagoon of Venice
Authors
Alberini, Anna, Paolo Rosato, Alberto Longo & Valentina Zanatta
Reference
SIEV – Sustainability Indicators and Environmental Valuation, NOTA DI LAVORO 19.2004
Year
2004
Aim of the Study
Policy assesment; Methodological test
Key Words
Contingent valuation, Effects of information
Link (from ENTRY ID)
Click here

OBJECT OF VALUATION

Region
Mediterranean (central)
Country
Italy
Location
Sant'Erasmo, Lagoon of Venice
Spatial Scale
Local
Ecosystem category
Coastal
Valuation Subject
Measures for improvement & preservation of environmental quality on the island of Sant'Erasmo
Ecosystem Service Valued
Recreation; Cultural heritage [components]
Ecosystem Service Category
Cultural service
Ecosystem stock valued
Beach; Lagoon

METHODOLOGICAL DESIGN

Valuation Method Used
Contingent Valuation
Valuation Measure
Willingness to pay
Payment Vehicle
One-time income tax

RESULTS

Type of Values Estimated
TEV
Monetary estimates
Entire sample: Mean WTP: 66.61; Median WTP: 20.39
Currency
Euro (€)
Currency's reference year
2002
Equivalent to 2012 Euro
Entire sample: Mean WTP: 87.19; Median WTP: 26.69
Aggregate results (in Reference Year)
Total benefits of households in the Veneto Region using WTP for Lagoon users & Potential lagoon users pooled subsample and Non-users subsample: when mean WTP is used: €107,122,100 (s.e. 11,634,649); when median WTP is used: €40,744,768 (s.e. 992,518).

ABSTRACT

This paper reports on a contingent valuation study eliciting willingness to pay for a public program for the preservation of lagoon, beach and infrastructure in the island of S. Erasmo in the Lagoon of Venice. A referendum dichotomous choice approach with a follow-up question is used to obtain information about willingness to pay from a sample of residents of the Veneto Region in Italy. We use split samples to investigate the effect of providing different levels of information to respondents before asking the payment questions. Our experimental treatment is a reminder of possible reasons for voting in favor or against the proposed program before the referendum question. We find that reminding respondents of the reasons for voting for or against the public works increases WTP among less highly educated respondents, and decreases WTP among more highly educated respondents.