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| Fleming, Christopher M.; Cook, Averil. |
| Environmental economists have long used surveys to gather information about people's preferences. This is particularly true in the field of non-market valuation, where techniques such as contingent valuation, choice modelling and the travel cost method invariably employ some form of survey instrument. A recent innovation in survey methodology has been the advent of web-based surveys. While popular in many other disciplines, to date, very few non-market valuation studies have employed the Internet as a survey tool. A primary concern of non-market valuation practitioners is the potential sampling biases associated with web-based surveys and the effect this may have on valuation estimates. In this paper the results of two travel cost surveys, one conducted... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Web-surveys; Sample bias; Travel cost method; Research Methods/ Statistical Methods. |
| Ano: 2007 |
URL: http://purl.umn.edu/10358 |
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