This data set shows monthly data of the French car market between 2003 and 2015. The market is divided into 5 main segments (A to E), according to the size of the vehicle chassis. Morais et. al (2018) first used this data to compare compositional and Dirichlet models for market shares.
car_marketAn object of class data.frame with 152 rows and 10 columns.
Lukas Dargel, Christine Thomas-Agnan
SEG_: Corresponds to the shares of sales in each of the five market
segments A,B,C,D and E. Where A are the smallest cars and E the largest.
The segmentation is explained in Wikipedia.
GDP: GDP figures in millions at current prices
HOUSEHOLD_EXPENDITURE: total household expenditure in millions at previous years prices
GAS_PRICE: Corresponds to the gas price including VAT.
SCRAPPING_SUBSIDY: A dummy indicating periods where the French government provided subsidies for scrapping a car.
Joanna Morais, Christine Thomas-Agnan & Michel Simioni (2018) Using compositional and Dirichlet models for market share regression, Journal of Applied Statistics, 45:9, 1670-1689, DOI: 10.1080/02664763.2017.1389864