His exams are rly hard. I learned all the materials in the past but I still find it to be rly challenging. Bunch of iClicker questions in every lectures. Slides without the iClicker answers are unclear. Learn STATA instead of R. Curve the exam grades based on normal distributions. Definitely a hard class for non-stats background ppl.

He's clearly passionate about the subject but he's so bad at teaching it. Lectures are iClicker heavy but a lot of the time you're left in the dark about how to answer them (and you have to get them right for credit). Exams are all free-response and feedback isn't very helpful, I found myself learning most of the material on my own.

Doug is a very kind professor, and has lots of availability outside of class. The material however is very tough and isn't taught in a helpful way, and I had to teach myself the math outside of class. Lots of Iclickers every day, section attendance is optional (and honestly section is useless). Some extra credit offered.

Really nice guy and does a good job explaining things.

HW through STATA, wasn't taught in class. had to go to OH and sit on the floor with 20+ students. Content was fair, but imo lectures too conceptual and didn't show the application of content needed for test. 7 TAs=7 versions of tests w/different concepts... Maybe hardest econ class I've taken, but not impossible, any amt of effort helps the curve.

He is one of the BEST professors I've had. Ignore the negative reviews and take 140A with him. Study hard, go to the office hours, and REVIEW for the tests. This is a hard class that requires extra time