This is a data set on the ability and success of salespersons in selling insurance contracts.
data.insurance
A data frame with 30 observations on the following four variables:
contr | number of insurance contracts currently sold by the salesperson. |
score | score of salesperson in assessment center. |
contrprev | number of insurance contracts sold period by the salesperson in the previous. |
ability | salesperson's true ability to sell insurance contracts. |
In Auer (2023, Chap. 20) and Auer et al. (2024, Chap. 20) these hypothetical data illustrate the use of two stage least squares estimation with an instrumental variable.
Auer, L.v., Hoffmann, S. & Kranz, T. (2024): Ökonometrie - Das R-Arbeitsbuch, 2nd ed., Springer-Gabler (https://www.oekonometrie-lernen.de).