fertility {Countr} | R Documentation |
Fertility data
Description
Fertility data analysed by Winkelmann(1995). The data comes from the second (1985) wave of German Socio-Economic Panel. The sample is formed by 1,243 women aged 44 or older in 1985. The response variable is the number of children per woman and explanatory variables are described in more details below.
Usage
fertility
Format
A data frame with 9 variables (5 factors, 4 integers) and 1243 observations:
children
integer; response variable: number of children per woman (integer).
german
factor; is the mother German? (yes or no).
years_school
integer; education measured as years of schooling.
voc_train
factor; vocational training ? (yes or no)
university
factor; university education ? (yes or no)
religion
factor; mother's religion: Catholic, Protestant, Muslim or Others (reference).
rural
factor; rural (yes or no ?)
year_birth
integer; year of birth (last 2 digits)
age_marriage
integer; age at marriage
For further details, see Winlemann(1995).
References
Winkelmann R (1995). “Duration dependence and dispersion in count-data models.” Journal of Business & Economic Statistics, 13(4), 467–474.