Description

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.

Usage

Format

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)

Used in Text

pages 18, 61, 110, 151, 165, 178, 184, 187-188, 258-259, 522-523

Source

https://www.cengage.com/cgi-wadsworth/course_products_wp.pl?fid=M20b&product_isbn_issn=9781111531041

Examples