jtrain3

Wooldridge Source: R.H. Dehejia and S. Wahba (1999), &lt;U+201C&gt;Causal Effects in Nonexperimental Studies: Reevaluating the Evaluation of Training Programs,&lt;U+201D&gt; Journal of the American Statistical Association 94, 1053-1062. Professor Sergio Firpo, at the University of British Columbia, has used this data set in his recent work, and he kindly provided it to me. This data set is a subset of that originally used by Lalonde in the study cited for JTRAIN2.RAW. Data loads lazily.

datasets

Students learning both econometrics and R may find the introduction
to both challenging. The wooldridge data package aims to lighten the task by efficiently
loading any data set found in the text with a single command. Data sets have been
compressed to a fraction of their original size. Documentation files contain page numbers,
the original source, time of publication, and notes from the author suggesting avenues for
further analysis and research. If one needs an introduction to R model syntax, a
vignette contains solutions to examples from chapters of the text.
Data sets are from the 7th edition (Wooldridge 2020, ISBN-13: 978-1-337-55886-0),
and are backwards compatible with all previous versions of the text.

Justin Shea

wooldridge

115 Data Sets from "Introductory Econometrics: A Modern
Approach, 7e" by Jeffrey M. Wooldridge

Justin M. Shea

Kennth H. Brown

jtrain3 function

A data.frame with 2675 observations on 20 variables:<ul>
<li>train: =1 if in job training</li>
<li>age: in years, 1977</li>
<li>educ: years of schooling</li>
<li>black: =1 if black</li>
<li>hisp: =1 if Hispanic</li>
<li>married: =1 if married</li>
<li>re74: '74 earnings, $1000s '82</li>
<li>re75: '75 earnings, $1000s '82</li>
<li>unem75: =1 if unem. all of '75</li>
<li>unem74: =1 if unem. all of '74</li>
<li>re78: '78 earnings, $1000s '82</li>
<li>agesq: age^2</li>
<li>trre74: train*re74</li>
<li>trre75: train*re75</li>
<li>trun74: train*unem74</li>
<li>trun75: train*unem75</li>
<li>avgre: (re74 + re75)/2</li>
<li>travgre: train*avgre</li>
<li>unem78: =1 if unem. all of '78</li>
<li>em78: 1 - unem78</li>
</ul>

jtrain3: jtrain3

Description

Usage

Arguments

Format

Used in Text

Examples