SAU 2018: Let's discuss!

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SAU 2018: Let's discuss!

Smith
How was the paper guys? What is the expected cut off this time?

SAU has proportionally less negative marking so I  thought attempting was a better option than leaving. So i attempted almost all of them.

Here are some questions/topics of questions I remember, please add what you remember, nd let's discuss!

1) The discrete pdf question- I was getting 0.2 which was not a part of the options:
c|x+y| for x,y=-2,-1,0,1,2,
0 otherwise,
finding probability of |x+y|≤1
0.8, 0.12, 0.126, 0.7

2) The continuous pdf question-
ce^(-2x) for x>0, and 0 otherwise, finding probability for 1<x<2

3)infant theory for which type of countries :Poor, rich, Soviet,--

4) "discretionary counter cyclical theory" failure matches which english proverb?:
Too man cooks spoil the broth, you can fool some for some time but not all all the time, familiarity attracts contempt,
two targets cant be hit by one stone

5)solow residual:
human capital, physical capital, labour force, none

6) stock variable:
physical capital, gdp, consumption, investment

7)shape of kuznets curve between income and pollution:
u shape, positive, inverted u shape, negative

8)optimal output for Y=KL when cost of capital K is r, labor L is w and output price is p:
Marginal costs equal, Q=p^2/(rw), doesn't exist, Q=rw/p^2

9)probabily question- when a and b are disjoint and a and c are independent , 3p(a)=2p(b)=p(c)>0 and p(a,b,c union) =5p(a), then p(a) is:
0.16, 0.3, cnd,---

10)Share of income spent on each good when facing cobb-douglas utility fn- options were really weird, i felt brackets were missing there and i marked the nearest option which was A

11)a and b disjoint then:
p(union of their complements)=0, --, p(a,b union)=S, all of the above

12) inequality among poor measured by:
Dalton'smeasure, hcr, poverty gag, squared poverty gap

13) chebyshev's inequality question

14) poor proportion reduce by 10 % , then:
no. of poor increase by 10%, decrease by 10%, 10% people's income improves, cnd

15) quasiconcave preferences, consuming at (4,4) at prices (1,2), if price increases to (1,3) then -
consumer better off, worse off, ---,---

16) if a risk averse person is given the option of a certain amount of 2000 or playing lottery game giving him 10000 with 25% probability, and 500 with 75%, then he would:
play lottery depending on degree of risk aversion, not play,--,--

17) when is the equation increasing question:
(-∞,∞); (-∞,-1) & (-1,∞); (-1,0) & (1,∞) ; ----

PS: This is sheerly out of memory, nd somethings might have been mentioned wrong!
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Re: SAU 2018: Let's discuss!

Radhika Sahni
What do you think was the answer to the 4th question? Countercyclical policies?
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Re: SAU 2018: Let's discuss!

Radhika Sahni
For the 9th question as well?

and how much is the expected cut-off this year?
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Re: SAU 2018: Let's discuss!

Smith
I was getting .16 for the 9th one...

What about the other questions? What was your answer to them? Were you getting an answer for the discrete and continuous variable questions?
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Re: SAU 2018: Let's discuss!

Econenthusiast
I left the question on discrete probability since the options weren't matching though I'm sure my method of solving was right. The continuous probability question I marked d as my answer, did not do questions I wasn't sure of - I attempted 35 in all. Also any idea what the cut offs would be like ?
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Re: SAU 2018: Let's discuss!

Econenthusiast
Also does anyone remember the monopolist question that was asked ?
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Re: SAU 2018: Let's discuss!

Smith
In reply to this post by Econenthusiast
Why d for continuous probability?

Also could you share your answers for other questions?

Give some idea about the monopolist question, i might remember it.
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Re: SAU 2018: Let's discuss!

Econenthusiast
So we had to find c for the integral of the pdf from 0 to infinity first, and then find the given definite integral, my answers didn't match even after double checking it several times so I opted for d. The monopolist question is vaguely along the lines of a monopolist have a decreasing average cost, I cant remember  the rest, I'm worried whether I jumped to a conclusion without thinking much for that one.
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Re: SAU 2018: Let's discuss!

Econenthusiast
In reply to this post by Smith
6a, 7 - rw/p^2, messed up 9 due to a careless mistake,10a, 11a, 12 Dalton's measure, 15d ( depends on the endowment) 16 a ( depends on degree of risk aversion ) 17c
Didnt attempt the others you mentioned since I was wary of guessing.
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Re: SAU 2018: Let's discuss!

Smith
In reply to this post by Smith
Here are some more questions I remember:
18) p->q r->s question
19) inverse of 3*5 matrix
20)if ab=In, then ba=In
21)newest saarc entrant

22)(some) statistic value -.20-- and p val .0567 question:
 The variable is negative, weak, approaching significance;;
 not significant, weak, and negative. ;;--;;--

23)p<.0001 question:
significant, 1/1000 of getting through by chance;
significant, 10/1000 of getting through by chance;
significant and can reject null hypothesis;
 none of the above

24) game theory eqm question:
 Game has a dominant stategy; no eqm;   2 nash eqm; 1 eqm
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Re: SAU 2018: Let's discuss!

Smith
In reply to this post by Econenthusiast
For the continuous question, were you able to find the value of c?
8) how is it rw/p^2 , i wasnt getting an exact answer but the nearest i got to was q=p^2/ rw.. so i marked that..could you explain how you evaluated
11) i was getting p(a,b union)=S logically , what was A and how you got it?
12) i also marked Dalton's measure, but the answer is squared poverty gap, i found on googling :/
15) i was getting worse off logically since it will the original bundle would be directly revealed preffered to the new one
17) i got d, it was not a monotonically increasing function

Rest all match

What about the new questions i added?
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Re: SAU 2018: Let's discuss!

Econenthusiast
In reply to this post by Smith
18. Wasn't sure so I didn't mark, felt like the two were independent
19. Inverse doesn't exist as its not a square matrix
20. I cant remember what I marked for that one, guess I marked that AB = BA = I is true
21, 22 and 23 I left
24 I got two nash equ

-For that question take pKL - wL - rK, differntiating w.r.t L we get, pK - w = 0 K = w/p, likewise we get L = r/p therefore Y = wr/p^2

-Yes I was able to get a value for c. If I remember right it was -2.
- Same! I got P( A U B) = S as well
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Re: SAU 2018: Let's discuss!

Smith
Oh yeah you're right! Shit i messed it up! So I'm getting 3 wrong for sure!
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Re: SAU 2018: Let's discuss!

Econenthusiast
That's fine, everyone messes up here and there. So far I have made careless mistakes in 4 questions.