approval

Wooldridge Source: Harbridge, L., J. Krosnick, and J.M. Wooldridge (forthcoming), “Presidential Approval and Gas Prices: Sociotropic or Pocketbook Influence?” in New Explorations in Political Psychology, ed. J. Krosnick. New York: Psychology Press (Taylor and Francis Group). Professor Harbridge kindly provided the data, of which I have used a subset. 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

approval function

A data.frame with 78 observations on 16 variables:<ul>
<li>id: id</li>
<li>month: month</li>
<li>year: year</li>
<li>sp500: S&amp;P 500 index</li>
<li>cpi: Consumer Price Index</li>
<li>cpifood: CPI for food</li>
<li>approve: Gallup approval rate, percent</li>
<li>gasprice: average gas price, cents</li>
<li>unemploy: unemployment rate, percent</li>
<li>katrina: =1 for three months after Hurricane Katrina</li>
<li>rgasprice: real gas price, 100*(gasprice/cpi)</li>
<li>lrgasprice: log(rgasprice)</li>
<li>sep11: =1 for 09/2001 and two months following</li>
<li>iraqinvade: =1 for three months after Iraq invasion</li>
<li>lsp500: log(sp500)</li>
<li>lcpifood: log(cpifood)</li>
</ul>

approval: approval

Description

Usage

Arguments

Format

Used in Text

Examples