| bwght | R Documentation |
Wooldridge Source: J. Mullahy (1997), “Instrumental-Variable Estimation of Count Data Models: Applications to Models of Cigarette Smoking Behavior,” Review of Economics and Statistics 79, 596-593. Professor Mullahy kindly provided the data. He obtained them from the 1988 National Health Interview Survey. Data loads lazily.
data('bwght')
A data.frame with 1388 observations on 14 variables:
faminc: 1988 family income, $1000s
cigtax: cig. tax in home state, 1988
cigprice: cig. price in home state, 1988
bwght: birth weight, ounces
fatheduc: father's yrs of educ
motheduc: mother's yrs of educ
parity: birth order of child
male: =1 if male child
white: =1 if white
cigs: cigs smked per day while preg
lbwght: log of bwght
bwghtlbs: birth weight, pounds
packs: packs smked per day while preg
lfaminc: log(faminc)
pages 18, 61, 110, 151, 165, 178, 184, 187-188, 258-259, 522-523
https://www.cengage.com/cgi-wadsworth/course_products_wp.pl?fid=M20b&product_isbn_issn=9781111531041
str(bwght)