On this page you will find exercises, applied examples, programming codes, and other engaging resources for the study of basic and advanced econometrics, time series, probability, and statistics. The exercises are drawn from past exams and are organized as lists labeled E1, E2, E3, and so on. Applied examples are presented as problem statements labeled T1, T2, T3, etc. Additionally, you will find programming codes in Stata and EViews related to different exercises and applications. The material is designed for both undergraduate and graduate students, with a strong applied and pedagogical focus that makes learning rigorous, practical, and enjoyable. Students often ask for additional practice exercises, and this page is precisely where you can find them. If you have questions while solving an exercise or estimating a model, feel free to contact me at nicolas.ronderos.pulido@gmail.com.