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- Carlsson, Fredrik, 1968, et al.
(author)
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Do Hypothetical and Actual Willingness to Pay Differ in Choice Experiments? - Application to the Valuation of the Environment
- 1999
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Reports (other academic/artistic)abstract
- In this paper we test the validity of choice experiments with donations for environmental projects. In particular, we test whether or not willingness to pay for projects differs between a hypothetical and an actual choice experiment. Our results do not indicate that choice experiments suffer from overstatement in hypothetical willingness to pay; and this contrasts the results found in external tests of validity in Contingent Valuation. In addition, internal tests of validity indicate transitive and stable preferences in both experiments
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| 4. |
- Carlsson, Fredrik, 1968
(author)
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Private vs. Business and Rail vs. Air Passengers: Willingness to pay for Transport Attributes
- 1999
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Reports (other academic/artistic)abstract
- Using a stated preference survey on passengers travelling by rail or air between the two largest cities in Sweden, we investigate passenger's willingness to pay for improvements of different attributes of the transport modes. We find that both private and business passengers put a substantial value on improvements of the environmental impact from both rail and air. In general, private passengers have much lower fare equivalents for the attribute, which is explained by the fact that business passengers do not pay for the trips themselves. Further, air passengers have higher fare equivalents than what rail passengers have for both rail and air attributes
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| 5. |
- Carlsson, Fredrik, 1968
(author)
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The Demand for Intercity Public Transport: The Case of Business Passengers
- 1999
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Reports (other academic/artistic)abstract
- Using a stated preference survey on business passengers travelling with rail or air between the two largest cities in Sweden, we investigate business passengers' preferences for different modes of transport and their corresponding attributes. We explore the usefulness of a more flexible specification of the demand for transport by using a random parameter logit (RPL) model. In the paper we find that there is a gain in using an RPL model compared to a fixed effect model, in the sense that it provides richer information about the passengers' preferences. However, we also find that the valuation of attributes does not significantly differ between a standard logit and an RPL model. Compared to what previous studies have found, the values put on attributes are very high, this including the environmental impact of the modes. This is largely explained by the fact that business passengers do not bear the cost of the trip, but still have the possibility if deciding mode of transport.
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