Finished grading HW 9 &10. I will bring them to the class in June 30. If you want them before the class, please come to my office to pick them up. I put them in the mail box in front of room 426 by the class, and after the class.

This time, I gave A for 12 students, B for 7 students, and C for 1 students. Kubota, Ino, and Tsukahara received A+ for their excellent performance.

I feel you all have done fairly well. Few students made major mistakes. The difference between grade A and B is just whether you can make a clear and convincing argument. Some students only put the answer, and did not exposit the logic to reach it. We less evaluate such a paper.

If you had any question, feel free to ask me.

Regards,

Kohei

## 2009年6月29日月曜日

## 2009年6月18日木曜日

### Murooka's last OH

Dear all,

TA Murooka's last Office Hour will be held on June 24.

If you have any question to me,

please send E-mail by the next week, or visit on June 24.

Best regards,

Murooka

TA Murooka's last Office Hour will be held on June 24.

If you have any question to me,

please send E-mail by the next week, or visit on June 24.

Best regards,

Murooka

## 2009年6月15日月曜日

### HW 9 & 10

We have uploaded both HW 9 and 10. The due date is June 23, in next week.

Feel free to come to my office if you found any typos and mistakes.

Regards,

Kohei

Feel free to come to my office if you found any typos and mistakes.

Regards,

Kohei

## 2009年6月12日金曜日

### Hwk 7-8 graded

I finished grading hwk 7-8. I will return them in today's TA session. Afterwards, I will place them in front of room 428.

My general grading policy is

C: did not do Problem 3 of hwk 8

B: at least try Problem 3 of hwk 8 but incorrect answers in basic problems

A-: Problem 3 (i),(ii) of hwk 8 is correct( or with minor errors) but incorrect answers in basic problems

A: Solve all of them with minor errors. Correct Problem 3(iii).

A+: Excellent performance.

If you have any questions about your grade, please feel free to

ask me for explanation.

Nakajima

My general grading policy is

C: did not do Problem 3 of hwk 8

B: at least try Problem 3 of hwk 8 but incorrect answers in basic problems

A-: Problem 3 (i),(ii) of hwk 8 is correct( or with minor errors) but incorrect answers in basic problems

A: Solve all of them with minor errors. Correct Problem 3(iii).

A+: Excellent performance.

If you have any questions about your grade, please feel free to

ask me for explanation.

Nakajima

## 2009年6月3日水曜日

### Additional assumption for hwk 8- (3-3)

Please note that in (3-3), x_h^i denote the demand of good h for consumer i.

There may be several ways to solve this problem.

If you need to assume u_{12}^2, u_{21}^2>0, please do so.

(where u_{12}^2 =\frac{\partial^2 u^2 (x_1^2,x_2^2;a)}{\partial x_1^2 \partial x_2^2}.)

Nakajima

There may be several ways to solve this problem.

If you need to assume u_{12}^2, u_{21}^2>0, please do so.

(where u_{12}^2 =\frac{\partial^2 u^2 (x_1^2,x_2^2;a)}{\partial x_1^2 \partial x_2^2}.)

Nakajima

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