BLP: BLP data set
In hdm: High-Dimensional Metrics

BLP	R Documentation

BLP data set

Description

Automobile data set from the US.

Format

model.name: model name
model.id: model id
firm.id: firm id
cdid: cdid
id: id
price: log price
mpg: miles per gallon
mpd: miles per dollar
hpwt: horse power per weight
air: air conditioning (binary variable)
space: size of the car
share: market share
outshr: share s0
y: outcome variable defined as log(share) - log(outshr)
trend: time trend

Details

Data set was analysed in Berry, Levinsohn and Pakes (1995). The data stem from annual issues of the Automotive News Market Data Book. The data set inlcudes information on all models marketed during the the period beginning 1971 and ending in 1990 cotaining 2217 model/years from 997 distinct models. A detailed description is given in BLP (1995, 868–871). The internal function constructIV constructs instrumental variables along the lines described and used in BLP (1995).