Erik Meijer and Jan Rouwendal, "Measuring Welfare Effects in Models with
Random Coefficients", Journal of Applied Econometrics, Vol. 21, No. 2, 
2006, pp. 227-244.

The data are stated preferences of 235 respondents, which were obtained
in 1987 by Hague Consulting Group for the National Dutch Railways (NS)
from experiments in which two options for travelling by train had to be
compared. These options differed in some or all of the following
attributes: fare, journey time, number of rail-to-rail transfers
(interchanges) and comfort levels. The number of decisions differed over
the respondents and was on average equal to 12.5. The file is organized
as follows:

- each of the 2929 rows refers to one choice
- column 1 is a respondent index
- column 2 a respondent-specific choice index
- column 3 indicates the chosen option (3 means that option 1 was
  chosen, 4 that option 2 was chosen)
- column 4 gives the fare of option 1 (in cents, 1 Dutch guilder=100 cents)
- column 5 gives the travel time of option 1 (in minutes)
- column 6 gives the number of interchanges of option 1
- column 7 gives the comfort level of option 1
- columns 8-11 are analogous to 4-7 for option 2
- columns 12-15 have not been used in the analysis.

These data are in the file mr-data.txt, an ASCII file in DOS format, which
is zipped in the file mr-data.zip. Unix users should use "unzip -a".