Richard Paap and Philip Hans Franses, "A Dynamic Multinomial Probit
Model for Brand Choice with Different Long-run and Short-run Effects of
Marketing Mix Variables", Journal of Applied Econometrics, Vol. 15, No.
6, 2000, pp. 717-744.

All data are in the file cracker.asc, an ASCII file in DOS format which is
zipped in the file cracker.zip.

Optical scanner panel data set on purchases of saltine crackers in the Rome
(Georgia) market, collected by Information Resources Incorporated.

number of households: 136
total number of purchases: 3292
data collection period: around 2 years
four brands: Sunshine, Keebler, Nabisco and Private label

variables:
brand choice, actual price of purchased brand and shelf price
of all other brands, display and newspaper feature advertisements.

The data file contains 17 variables, arranged in five rows for each
observation.

1    : household  ID
2-5  : purchase/no-purchase of Sunshine, Keebler, Nabisco, Private Label
6-9  : display/no-display of Sunshine, Keebler, Nabisco, Private Label
10-13: feature/no-feature of Sunshine, Keebler, Nabisco, Private Label
14-17: price in $/unit for Sunshine, Keebler, Nabisco, Private Label

For more details, please see Jain, D.C., N.J. Vilcassim and P.K.
Chintagunta, 1994, A Random-Coefficient Logit Brand-Choice Model Applied to
Panel Data, Journal of Business & Economic Statistics, Volume 12, No. 3,
pages 317-328.


Richard Paap
RIBES
Erasmus University Rotterdam
P.O. Box 1738
NL-3000 DR Rotterdam
The Netherlands
phone : (+31) 10 40 81315
fax   : (+31) 10 40 89136
e-mail: paap@few.eur.nl
homepage: http://www.few.eur.nl/few/people/paap