Electricity outages in Ghana: Are contingent valuation estimates valid?

Contingent Valuation

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Contingent Valuation and Incentives

We empirically investigate the effect of the payment mechanism on contingent values by asking a willingness-to-pay question with one of three different payment mechanisms: individual contribution, contribution with provision point, and referendum. We Ž nd statistical evidence of more afŽ rmative responses in the referendum treatment relative to the individual contribution treatment, some weak s...

Protest Bidders in Contingent Valuation

Protest bids are often excluded during analysis of contingent valuation method data. It is suggested that this procedure might introduce significant bias. Protest bids are often registered by respondents who may actually place a higheror lower-than-average value on the commodity in question but refuse to pay on the basis of ethical or other reasons, Exclusion of protest bids may therefore bias ...

Market Segmentation within Contingent Valuation

A finite probability mixture model is combined with a contingent valuation model to analyze the existence of differential market segments in a hypothetical market. The approach has at least two principle benefits. First, the model is capable of identifying market segments within the hypothetical market. Second, the model can be used to estimate WTP/WTA within each segment. The model is illustra...

-celear"gand Contingent Valuation Methods