By far, the absolute most difficult class in the economics department. This class was tough and required a lot of effort to succeed, but it was worth it. It is the class where you learn theoretical but it's also very practical because you get to practice your R skills. The material is very interesting and even though the projects where challenging, it is impressive enough to use during internship/work interviews and gets you interested to learn more. Professor Rojas is one of the smartest and most patient professors. If you are willing to learn, he is more than happy to teach. Definitely attend office hours because you will understand the material and you'll be able to chat with the professor about interesting topics! Before the class, try to get a head start with learning some basic R skills.

This was overall a very tough but useful class. This class builds off of the material we learned from 103 so it is very important to have strong R skills as you will be doing group projects using R. The group projects were tedious but are mostly graded based on completion. Since this was the first quarter having exams in person, we didn't have to code on exams but instead they're mostly conceptual, some calculations, and some R code interpretations. Overall a pretty good class and prof rojas is very helpful and open to answering questions.

This is really the hardest class in the econ department. Imagine Econ 103 x 10 for level of difficulty. Professor Rojas is very inspiring and engaging, although the materials are hard and he’s a strict professor, he still managed to make me like the class way more than I thought I would. The key to do well in this class for me was practicing coding and understanding the theory enough to be able to code and understand the output. Professor Rojas expects you to know a lot, so if you didn’t take econ 103 with him, let him know so he can provide some sort of R workshop (which he did for us) or his lab notes from 103 so you can catch up. Otherwise I recommend learning R using datacamp or something like that to get ahead. Always take advantage of his office hours because he’s very patient, and he truly wants his students to succeed. I asked a lot of stupid questions but he would try a lot of different ways to explain. The skill set I learned from his class is honestly the most useful out of all the econ classes i’ve taken due to the coding aspect.