Econometrics I

Theory, Practice, and Applications

An open undergraduate textbook for Econometrics I at the University of Granada. Combines lecture notes, R tutorials, and interactive self-assessment in a single reproducible volume.

Author

Alessio Gaggero

Published

May 20, 2026

Preface

Econometrics I — Theory, Practice, and Applications is the open companion textbook for the Econometrics I course at the University of Granada (UGR), Faculty of Economics and Business Studies. It consolidates three years of teaching materials — lecture notes, R tutorials, and interactive self-assessments — into a single reproducible volume.

0.1 What this book is

A unified second-year undergraduate text that walks the reader from the idea of an econometric model to the practical estimation, inference, and diagnostic skills required to analyse real economic data. Each chapter follows the same six-section template:

Learning outcomes
Motivating empirical question
Theory
Worked example in R
Self-check (interactive quiz)
Exercises (★ easy, ★★ medium, ★★★ analytical)

0.2 How this book is organised

Chapter	Topic
1	Initial Concepts
2	The Simple Linear Regression Model
3	The Multiple Linear Regression Model
4	Inference
5	Prediction and Model Selection
6	Nonlinear Relationships and Qualitative Information
7	Heteroskedasticity
8	Autocorrelation
App. A	Mathematical and Statistical Prerequisites
App. B	Wooldridge ↔︎ Carter–Griffiths–Lim crosswalk
App. C	Statistical tables

0.3 Editions and license

This book is released under a Creative Commons Attribution 4.0 International (CC BY 4.0) license. An equivalent Spanish edition is available as Econometría I — Teoría, práctica y aplicaciones.

0.4 How to use the source materials

The textbook is built with Quarto. Each chapter is a .qmd file that combines prose, executable R code, and interactive quizzes. To rebuild the book locally:

quarto render                  # English edition (default)
quarto render --profile es     # Spanish edition

0.5 Required R packages

install.packages(c("wooldridge", "readxl", "lmtest", "sandwich", "orcutt"))
# Companion package (data + helpers)
# remotes::install_github("agaggero-ugr/econometricsUGR")

0.6 Acknowledgements

UGR Department of Quantitative Methods for Economics and Business; the students of three consecutive cohorts (2023/24, 2024/25, 2025/26) whose questions shaped this text; and the authors of Introductory Econometrics (Wooldridge) and Principles of Econometrics (Carter–Griffiths–Lim) on whose pedagogical traditions this book builds.

--- title: "Preface" --- # Preface {.unnumbered} > *Econometrics I — Theory, Practice, and Applications* is the open companion textbook for the Econometrics I course at the University of Granada (UGR), Faculty of Economics and Business Studies. It consolidates three years of teaching materials — lecture notes, R tutorials, and interactive self-assessments — into a single reproducible volume. ## What this book is A unified second-year undergraduate text that walks the reader from the *idea* of an econometric model to the practical estimation, inference, and diagnostic skills required to analyse real economic data. Each chapter follows the same six-section template: 1. **Learning outcomes** 2. **Motivating empirical question** 3. **Theory** 4. **Worked example in R** 5. **Self-check** (interactive quiz) 6. **Exercises** (★ easy, ★★ medium, ★★★ analytical) ## How this book is organised | Chapter | Topic | |---|---| | 1 | Initial Concepts | | 2 | The Simple Linear Regression Model | | 3 | The Multiple Linear Regression Model | | 4 | Inference | | 5 | Prediction and Model Selection | | 6 | Nonlinear Relationships and Qualitative Information | | 7 | Heteroskedasticity | | 8 | Autocorrelation | | App. A | Mathematical and Statistical Prerequisites | | App. B | Wooldridge ↔ Carter–Griffiths–Lim crosswalk | | App. C | Statistical tables | ## Editions and license This book is released under a **Creative Commons Attribution 4.0 International (CC BY 4.0)** license. An equivalent Spanish edition is available as *Econometría I — Teoría, práctica y aplicaciones*. ## How to use the source materials The textbook is built with [Quarto](https://quarto.org). Each chapter is a `.qmd` file that combines prose, executable R code, and interactive quizzes. To rebuild the book locally: ```bash quarto render # English edition (default) quarto render --profile es # Spanish edition ``` ## Required R packages ```r install.packages(c("wooldridge", "readxl", "lmtest", "sandwich", "orcutt")) # Companion package (data + helpers) # remotes::install_github("agaggero-ugr/econometricsUGR") ``` ## Acknowledgements UGR Department of Quantitative Methods for Economics and Business; the students of three consecutive cohorts (2023/24, 2024/25, 2025/26) whose questions shaped this text; and the authors of *Introductory Econometrics* (Wooldridge) and *Principles of Econometrics* (Carter–Griffiths–Lim) on whose pedagogical traditions this book builds.