approval: approval

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

approval

Description

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.

Usage

data('approval')

Format

A data.frame with 78 observations on 16 variables:

• id: id

• month: month

• year: year

• sp500: S&P 500 index

• cpi: Consumer Price Index

• cpifood: CPI for food

• approve: Gallup approval rate, percent

• gasprice: average gas price, cents

• unemploy: unemployment rate, percent

• katrina: =1 for three months after Hurricane Katrina

• rgasprice: real gas price, 100*(gasprice/cpi)

• lrgasprice: log(rgasprice)

• sep11: =1 for 09/2001 and two months following

• iraqinvade: =1 for three months after Iraq invasion

• lsp500: log(sp500)

• lcpifood: log(cpifood)

Used in Text

343, 371, 400

Source

http://www.cengage.com/c/introductory-econometrics-a-modern-approach-6e-wooldridge

Examples

 str(approval)

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