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Abstract

We compare Internet and telephone survey responses across 27 European Union nations and two research contexts: one, a choice experiment of willingness to pay to avoid power outages, and the other, a public acceptance of energy infrastructure question. The various forms of survey mode effects and the challenges of survey mode choice are documented and developed in the context of statistical theory and an application to an economics survey. We find evidence that survey mode effects vary across research contexts, and to a lesser extent, across nations. We suggest that the degree of measurement bias may be varying between research contexts, for example based on the availability of a perceived socially correct response within a given context. Future survey-based research should evaluate the choice of survey mode in a context- and region-specific manner.

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