jtrain: jtrain

jtrainR Documentation

jtrain

Description

Wooldridge Source: H. Holzer, R. Block, M. Cheatham, and J. Knott (1993), “Are Training Subsidies Effective? The Michigan Experience,” Industrial and Labor Relations Review 46, 625-636. The authors kindly provided the data. Data loads lazily.

Usage

data('jtrain')

Format

A data.frame with 471 observations on 30 variables:

  • year: 1987, 1988, or 1989

  • fcode: firm code number

  • employ: # employees at plant

  • sales: annual sales, $

  • avgsal: average employee salary

  • scrap: scrap rate (per 100 items)

  • rework: rework rate (per 100 items)

  • tothrs: total hours training

  • union: =1 if unionized

  • grant: = 1 if received grant

  • d89: = 1 if year = 1989

  • d88: = 1 if year = 1988

  • totrain: total employees trained

  • hrsemp: tothrs/totrain

  • lscrap: log(scrap)

  • lemploy: log(employ)

  • lsales: log(sales)

  • lrework: log(rework)

  • lhrsemp: log(1 + hrsemp)

  • lscrap_1: lagged lscrap; missing 1987

  • grant_1: lagged grant; assumed 0 in 1987

  • clscrap: lscrap - lscrap_1; year > 1987

  • cgrant: grant - grant_1

  • clemploy: lemploy - lemploy[_n-1]

  • clsales: lavgsal - lavgsal[_n-1]

  • lavgsal: log(avgsal)

  • clavgsal: lavgsal - lavgsal[_n-1]

  • cgrant_1: cgrant[_n-1]

  • chrsemp: hrsemp - hrsemp[_n-1]

  • clhrsemp: lhrsemp - lhrsemp[_n-1]

Used in Text

pages 137, 161, 233, 254, 339, 465-466, 479, 486-487, 492, 504, 541-542, 774-775, 786-787, 788, 819.

Source

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

Examples

 str(jtrain)

wooldridge documentation built on May 3, 2023, 5:06 p.m.