twoyear {wooldridge}

twoyear

Description

Wooldridge Source: T.J. Kane and C.E. Rouse (1995), Labor-Market Returns to Two- and Four-Year Colleges, American Economic Review 85, 600-614. With Professor Rouse’s kind assistance, I obtained the data from her web site at Princeton University. Data loads lazily.

Usage

data('twoyear')

Format

A data.frame with 6763 observations on 23 variables:

• female: =1 if female

• phsrank: percent high school rank; 100 = best

• BA: =1 if Bachelor's degree

• AA: =1 if Associate's degree

• black: =1 if African-American

• hispanic: =1 if Hispanic

• id: ID Number

• exper: total (actual) work experience

• jc: total 2-year credits

• univ: total 4-year credits

• lwage: log hourly wage

• stotal: total standardized test score

• smcity: =1 if small city, 1972

• medcity: =1 if med. city, 1972

• submed: =1 if suburb med. city, 1972

• lgcity: =1 if large city, 1972

• sublg: =1 if suburb large city, 1972

• vlgcity: =1 if very large city, 1972

• subvlg: =1 if sub. very lge. city, 1972

• ne: =1 if northeast

• nc: =1 if north central

• south: =1 if south

• totcoll: jc + univ

Notes

As possible extensions, students can explore whether the returns to two-year or four-year colleges depend on race or gender. This is partly done in Problem 7.9 but where college is aggregated into one number. Also, should experience appear as a quadratic in the wage specification?

Used in Text: pages 140-143, 165, 261, 340

Source

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

Examples

 str(twoyear)