3 Univariate Regression: One Regressor

This section is based on (Wooldridge 2015), (Hill, Griffiths, and Lim 2010), (Lapinskas 2013d) and (Lapinskas 2013c).

In this chapter we will present the definition and main properties of cross-sectional data models for the univariate case. The methodology and concepts presented here are the foundation of many further chapters and not just for cross-sectional, but also time series and panel data models. As such, if you are unfamiliar with econometrics, it is important to carefully review this chapter (and references therein) in order to grasp the concepts of model specification and estimation.


Hill, R. C., W. E. Griffiths, and G. C. Lim. 2010. Principles of Econometrics, 4th Edition. John Wiley & Sons, Incorporated. https://books.google.lt/books?id=m4HLnQEACAAJ.

Lapinskas, R. 2013c. Practical Econometrics I. Regression Models (Computer Labs). Vilnius.

Lapinskas, R. 2013d. Practical Econometrics I. Regression Models (Lecture Notes). Vilnius.

Wooldridge, J. M. 2015. Introductory Econometrics: A Modern Approach. Cengage Learning.