charity: charity

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

charity

Description

Wooldridge Source: P.H. Franses and R. Paap (2001), Quantitative Models in Marketing Research. Cambridge: Cambridge University Press. Professor Franses kindly provided the data. Data loads lazily.

Usage

data('charity')

Format

A data.frame with 4268 observations on 8 variables:

• respond: =1 if responded with gift

• gift: amount of gift, Dutch guilders

• resplast: =1 if responded to most recent mailing

• weekslast: number of weeks since last response

• propresp: response rate to mailings

• mailsyear: number of mailings per year

• giftlast: amount of most recent gift

• avggift: average of past gifts

Notes

This data set can be used to illustrate probit and Tobit models, and to study the linear approximations to them.

Used in Text: pages 65, 112-113, 266-267, 628

Source

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

Examples

 str(charity)

JustinMShea/wooldridge documentation built on May 16, 2023, 12:30 p.m.