2024 Micro I TA

2024 Microeconomics I, TA website (Grad School of Economics, UTokyo)

This website is operated by the teaching assistants.

Link for "Microeconomics I 2024 (Prof. Akihiko Matsui)" https://sites.google.com/site/utmicroeconomics2/microeconomics-i-2024?authuser=0

Updated Information

Tentative Schedule

Basic Information about PSs and TA sessions

A boring old story from a TA

Updated Information

All dates are written in JST (Japan Standard Time).

NEW! July 29th: We have sent your PS3 grades to those who submitted them via email. Please check it. PS3_Result_Announcement was posted, too.
NEW! July 28th: We have sent your PS1 grades to those who submitted them via email. Please check it. PS1_Result_Announcement was posted, too.
July 23rd: There was a minor mistake in PS6_Answer_ver2, which was fixed in ver.3 in red letters.
July 18th: PS6_ver2 and PS6_Answer_ver2 were posted at PM 11:30. Because theorems and lemmata on PS4 slides include inaccurate statements, please refer to PS6 for more accurate theorems and lemmata.
July 16th: PS5_Answer_ver2 was posted. (I had provided a wrong answer, which is fixed in ver2.)
July 16th: PS4_Slide was posted. FYI, past PSs and their solutions in 2019-2023 were posted.
July 15th: We have sent your PS4 grades to those who submitted them via email. PS4_Grading_Criteria was posted, too.
July 10th: PS5 and PS5_Answer were posted. I'm sorry for the late post.
July 8th: PS4_Answer was posted.
July 2nd: The TA session for PS3 will be held from 14:55 to 16:40 at the Lecture Hall 6 Today. The first half will be a short review of PS3, and the second half will be an office hour.
June 25th: PS4 was posted! Accordingly, "Math Notations in LaTeX" was also updated. I look forward to your answers :)
June 24th: The submission of PS3 has been closed. The TA session for PS3 will be held from 14:55 to 16:40 on Tuesday, July 2nd. The model answer for PS3 and slides for the TA session will be posted by the TA session.
June 11th: PS3 was posted! If Producer Theory is not fully covered in today's class, please solve Q1 and Q2 first. The rest part will be fully covered in the next class.
June 4th: PS2_Slide_before/after_class was posted.
May 31st: We have sent your PS2 grades to those who submitted them via email. I am really sorry for sending so many emails to some of you. PS2_Grading_Criteria was posted, too.
May 27th: PS2_Answer_ver2 was posted. The next TA session will be held at Lecture Hall 6.
May 27th: The schedule for PS3 was changed. (It was postponed for a week.)
May 27th: PS2_Answer was posted. The date of the TA session for PS2 is announced below.
May 20th: Slides for the TA session for PS1 were uploaded.
May 14th: PS2 was posted! (If UMP is not fully covered in today's class, please solve Q1 and Q4 first. The rest part will be fully covered in the next class at least.)
May 13th: PS1_Answer was posted. Good work! Have a good rest until tomorrow. The date of the TA session for PS1 is announced below.
April 30th: PS1 was posted! Accordingly, "Math Notations in LaTeX" was also updated.
April 17th: We change the schedule for PS1-5. Please reconfirm the "Tentative Schedule" below.
April 2nd: "Math Notations in LaTeX" was posted. This file is intended to help you create your answers in LaTeX.
April 2nd: This website has been released.

Tentative Schedule

All dates are written in JST. Please note that we will follow this schedule as closely as possible, but it is subject to change.

"Math Notations in LaTeX" will be posted. ✓
"Problem Set 1" was posted on Tuesday, April 30th. The deadline will be 11:59 p.m. on Sunday, May 12th.✓
- The TA session for PS1 was held from 14:55 to 16:40 on Tuesday, May 21st, at Lecture Hall 6. The slides were uploaded beforehand. We are looking forward to seeing you!
"Problem Set 2" was posted at 8:00 a.m. on Tuesday, May 14th. The deadline will be 11:59 p.m. on Sunday, May 26th.
- The TA session for PS2 will be held from 14:55 to 16:40 on Tuesday, June 4th, at Lecture Hall 6. The slides will be uploaded beforehand. We are looking forward to seeing you!
"Problem Set 3" was posted at 8:00 a.m. on Tuesday, June 11th. The deadline is 11:59 p.m. on Sunday, June 23rd.
"Problem Set 4" was posted at 8:00 a.m. on Tuesday, June 25th. The deadline is 11:59 p.m. on Sunday, July 7th.
- The TA session for PS4 will be held from 14:55 to 16:40 on Tuesday, July 16th, at Lecture Hall 6. The slides will be uploaded beforehand. We are looking forward to seeing you!
"Problem Set 5" was posted on Tuesday, July 9th July 10th.
"Problem Set 6" was posted on Tuesday, July 16th July 18th.

Basic Information about PSs and TA sessions

Six problem sets (PSs, in short) will be posted. Only the first four PSs are subject to grading, and the last two PSs are solely for your own study.
Our model answer is posted immediately after the deadline for each of the first four PSs. Therefore, any late submission is not graded basically.
After the deadlines for each of the PS1-PS4, we hold an in-person TA session explaining the PS. Participation is optional. If you can understand our model answer on your own, we think you do not need to attend it. The TA sessions are scheduled for Tuesday from 14:55 to 16:40 (Explanation based on slides: 14:55-16:10, Q&A: 16:10-16:40). If you have only specific questions (ones irrelevant to the PS are also welcome), please visit the venue of the TA session from 16:10 to 16:40.
Any corrections to PSs or schedule changes are announced on this website.

A boring old story from a TA

When I took this course in the past, my PS1 score was 46 points out of 100, while the best score in class was 98 points. I had not been in a homework group. I had not learned "what rigorous proof is" and "how to study microeconomics." Later, kind seniors put me in their group, and I continued to attempt rigorous proof with them. Finally, I successfully marked A+. From this story, you may be able to learn two lessons.

Studying with others may be crucial. You can hold a study meeting for several hours with your colleagues every week. You can share a summary of some topics in your own way with each other.
Take into consideration that the PS score accounts for only 10% of your grade! I'm not saying that tackling PSs is not important. Rather, the process of writing formal proof by yourself is essential in this course, I think. However, remember that PSs check your limited perspective and range of ability. Homework tests the ability to understand the contents of this course and write rigorous proof and explanation for new problems frequently. The final exam, which accounts for most of your grade, tests the ability to quickly understand the question and write a proof that addresses important points at the end of this semester. Even if you mark a poor score on PSs, you can catch up by the end of the semester.

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