Absolutely trash professor for a relatively easy class.

1. Didn't even clarify or provide resources for what would be on the final until three days before, with the excuse that he was "prepping practice problems to make sure they were only on the subjects covered." Spoiler alert: half the problems he ended up posting were still not on the subjects we covered.

2. Made mistakes on variable usage for a question in the final and is refusing to give points back.

3. Countless errors in provided notes, solutions & other resources. (He calculated all of the CLT questions in one section of the notes incorrectly, and some of the answer keys to past midterms that he provided for review also had incorrect solutions. Every class, students would find errors in notation/calculation in his lecture notes--it was honestly so frustrating to follow.)

4. Doesn't reply to emails, saying that there were too many to reply to.

5. Bad at explaining things: he spent 45 minutes describing a basic theorem that boiled down to common sense, and then skims over fundamental stats concepts that it seems like he expects people to already know.

Is this guy supposed to be the best Econ professor? Honestly confused; he turned what should have been a relatively straightforward class into an absolute nightmare.

Perhaps the worst professor I have had at my time at UCLA. Rojas DOES NOT CARE about his students. He packed every lecture with around 10-20 different topics, sped through them, and does not give time for students to answer questions that HE asks. He does not respond to emails and he did not offer any prep for our finals that was worth 50% OF OUR GRADE. Rojas literally made me hate math, something I used to enjoy. He assumes that just since he picked up a couple PhD's that everyone is automatically as smart as him. I would recommend people not to take this class with him, but there is no better alternative. The Econ department at UCLA is completely inept at hiring competent professors. All they care is about failing students. Professor Rojas is a ruthless maniac trying to keep his prestige in the department. Overrated and highly deplorable.

Overall, this class was absolutely horrible with Rojas being very confusing and all over the place. He only had three tests with two midterms with 25 and 20 questions mcq each respectively and the final worth 50% with 40 questions. His lectures were useless as they often explained the concepts in the most convoluted and worst ways possible. He gave us only 3 days notice on what would be on our final and the practice problems he gave had wrong answers and were often on things not remotely related to the final and he also gave no practice finals. Also, there was no homework or any other grade and a very small if any curve. Though the tests themselves were not bad, if you messed up on just 2 or 3 questions, it could be the difference between an A and a B. On the final, the questions often had None of the Above which means you often got close and not the exact answer and thought it was a trick. Some of the questions were just plain wrong or confusing and he still seems to not care or want to fix them. He also never responded to emails his students sent him and thus keeps the class extremely confusing. Overall, I wouldn't take another of his courses and would recommend people take another professor but Econ 41 seems to have no good professors.

I was so hyped to get Rojas for this class, but IDK what happened this quarter--the class is terrible. He will explain things in the most convoluted manner and then when he does an example it turns out he was literally explaining the simplest of concepts (i.e. weighted avgs). His way of presenting concepts makes the lectures literally impossible to sit through (I'd rather just read a page of notes and do practice problems on my own because it'd probably be more time-efficient).

Also, half the notes/resources he gave us this quarter had numerical errors. For example, some of the ANSWER KEYS to past midterms were wrong/incorrect, and he never released corrections/updates to let us know--we just had to figure it out ourselves. Plus, every other lecture there's like ~2-5 numerical/notational errors in his notes that just make taking notes super annoying and sometimes even confusing. I don't understand how he expects us to learn and practice if he can't even provide accurate resources.

The actual class material isn't hard at all, especially if you took AP stats. Around ~65-70% of the material directly carries over. I got a high A on both midterms.

However, it feels like Rojas is working against us (never responds to emails, convoluted explanations, wrong answers everywhere, AND it's four days before the final right now and he hasn't posted a single practice problem after promising us he would email them days ago). I'm actually livid about this class--literally the worst experience I've had so far in the Econ department.

Tldr; not a hard class, but don't take this class with Rojas.

I don’t usually write reviews. In fact, this is my first one. I’m usually accepting of my grades because even if they were bad I can accept that they reflect how I did in the class. But this class made me break that streak because of how frustrating it is that all my scores for this class were good, getting a max of 5 questions wrong each (literally ONE POINT PER QUESTION and mind you, I didn’t even hit the 5 max mistakes on all of them) and yet, my final grade makes me feel like a failure. I guess it’s ironically apt that the one single data we will have of this class, is not representative of our situation and our performance. I want to say everyone was harsh in their reviews of Rojas (he seems like a genuinely nice person and doesn’t seem like he wants to come off as anything less) but it really was unfair that he took so long to reply emails and give us information about the final, something we wouldn’t have to worry about had this class been in person. So the fact that one question determines your grade without a curve (there really isn’t one), even if it was open book open note, feels like with every “benefit” we got with moving online, the econ department compensates with two setbacks. Slapping on a “none of the above” option for every question, just in case you make a mistake in your one exam but not giving your students a safety net when they make one mistake. No “Ask your professor questions to improve” option either because he is somehow allergic to opening any of them. I guess I could have just taken it as a learning lesson like for Econ 11 and 101 because those were genuinely new concepts to me but this subject WAS familiar, straight forward and enjoyable. So it really saddens me that not only am I going to have this affect my GPA but I can no longer look at a subject I once enjoyed in the same way. If all the econ courses have professors that make you want to never look at this subject again, then I hope they’ll consider renaming themselves the anti econ department. Can’t help but applaud the use of the term “heartbreaking” in another review. There really is no better word to explain it.

Professor Rojas had a good reputation so I was excited going into this class. But this man shows no mercy at all. This class had three exams which make up your whole grade and the final being 50%. There is no extra credit or homework points so if you mess up on a test, you're done for. He also never answers your emails or questions and leaves his students hanging so they never know what to expect on the tests. He gave no practice finals so we had no clue what we were walking into. One of the worst professors in the entire department. Avoid this class with him at all costs. You won't get the grade you deserve because he wants to see students do worse which was proven by his lack of material and information regarding the final exam. What a horrible professor hopefully you have a better experience than me, but he really has me heartbroken.

idk why rojas has so much hate on bruinwalk. his lectures were super clear and engaging and he won't test on material that he doesn't fully cover. his tests were challenging but the multiple practice exams he provides are really good prep. compared to other econ professors I've had/currently am taking class with he's my fave. <3

Rojas is really thorough and slow. He presented the material in a very nice manner, using different color chalks and bullet points to make everything pop out. He provides a good amount of practice tests and ungraded homework.

With that said, the material is not that easy. You have to stay on top of it. Don't wait to do the homework the day before the midterm. Also, it would help to practice some integration beforehand (simple and parts).

I would also recommend taking Stats 10 or an equivalent class for the hypothesis tests at the very end. That class helped me a lot!

I had Rojas for Econ 1 last spring and, like last time, the one word that I could best use to describe him is lazy. Although his class is easy, his lack of organization and sheer lack of sincerity will likely drive you insane.

This class is a joke if you've taken AP Stats; I'm unsure how anyone else is expected to gain an understanding of all the material otherwise. A TI-84 is your ticket to freedom in this class. You won't be taught how to use it, but being able to do all the confidence intervals with the press of a button and quickly calculate distributions will make most of the exams free. The final was, shall I say, strange in comparison to the midterms, which were all quite straight-forward, but it wasn't as bad as everyone else made it seem. It's not like we don't have a textbook and a bunch of homework problems for extra practice, if you need it. Especially if you know how to use your calculator, it isn't that hard to do reasonably well in this class.