Jnu sss 2015

[urvashi]

Anybody interested in discussing it ? Cant find its solutions anywhere

[Amit Goyal]

I am. Please go ahead.

[urvashi]

Thank you sir i will post my answers by evening

[ahlashi]

sir could  you pls post the answer keys to both SSS and SIS so that we could cross check our answers

[urvashi]

I have left the questions related to NIA because im not done with that topic and the questions for which i have doubts i have left blank
1.d
2.
3.
4.b
5.b
6.b
7.d
8.
9.
10.
11.a
12.
13.
14.c
15.c
16.a
17.a
18.b
19.d
20.a
21.a
22.
23.
24.
25.
26.a
27.c
28.d
29.d
30.b
31.b
32.c
33.b
34.d
35.c
36.c
37.a
38.a
39.
40.
41.
42.b
43.a
44.b
45.b
46.d
47.a
48.
49.d
50.c
51.a
52.a
53.b
54.c
55.a
56.
57.a
58.b
59.b
60.d
61.
62.d
63.d
64.b
65.c

[Mauli]

I have tried the first 20

1) D

2) D

3) C

4) B

5)B

6)A

7)A

8)A

9)D

10)A


11)D

12) B

13)B

14)B

15) C

16) C

17) A

18)B

19)B

20)A

[Eco16]

1. d
2. d
3.
4.b
5.b
6.b
7.a
8.a
9.d
10.b
11
12.
d
13.b
14.b
15.c
16.b
17.
18.b
19.a/d
20.a
My answers for first 20 questions.

[Amit Goyal]

These are not discussions. If you think, you have difficulty in approaching certain question, post the question along with your difficulty and I can help you to solve it.

[Mauli]

Thank you sir for helping us solve 2015 :)

http://economicsentrance.weebly.com/uploads/1/1/0/5/1105777/sss-2015.pdf


For Q28 ,
 

I am not sure of the answer coz i am unable to derive a relation between range and standard deviation and skewness. However, i read over the internet that R/2 > S.D and the
'Range rule of Thumb=> S.D = Max-Min/4.
So according to this the answer should be a.
Is that correct?

[Mauli]

 Also ,
Q41 is a big fat doubt!! I do not know how to approach it.

An economy's output in year 0 is 10% below its maximum potential output and the maximum potential output increases steadily at the rate of 5%p.a after that. In such circumstances , for how many years would it be possible for that economy to maintain a 6% p.a rate of growth of actual output?

a) not possible at all.
b) 5 years
c) 11 years
d) 15 years

[Amit Goyal]

Answer to Q 28 is (d), we cannot say which population has the greater range or skewness.

In each of the following situations, Population A has a larger standard deviation (SD) than population B:

Situation 1
Population: A = {0,1}, B = {1,1}
Features: SD(A) > SD(B) and Range(A) > Range(B)

Situation 2
Population: A = {-1,-1,-1,-1,-1,1,1,1,1,1}, B = {-2,0,0,0,0,0,0,0,0,2}
Features: SD(A) > SD(B) but Range(A) < Range(B)

Similar examples can be constructed to show that higher standard deviation does not imply higher skewness either. Try that yourself.

[varnika1880]

Q:43 consider a cournot duopoly ..inverse dd function is P=e^-(X+Y) .. *X firms 1 output Y firms 2 output .costs are 0 how much will both firms produce at equilibrium ...m really confused while solving optimization with such kind of demand functions plz help ?

[SM]

http://economicsentrance.in/thread/jnu-2015-q-43/ 

Varnika,this should help! I have a doubt in 41 as well.

[varnika1880]

Hey thanks a lot ...but sorry even I am clueless about 41

[SM]

Sir, could you please throw light on how to go about this question?

An economy's output in year 0 is 10% below its maximum potential output and the maximum potential output increases steadily at the rate of 5%p.a after that. In such circumstances , for how many years would it be possible for that economy to maintain a 6% p.a rate of growth of actual output?

a) not possible at all.
b) 5 years
c) 11 years
d) 15 years

[Amit Goyal]

Answer to Q 41 is (c) 11 years. I have posted the detailed solution here: Link

[Mauli]

After seeing the solution suddenly this question makes sense now :)

[Mauli]

Sir , i got the logic behind this question but i have one query. in my explanation whatever i have written is that correct? is there anything such as the range rule of thumb?

[SM]

Thank you so much for the detailed solution, Sir

[varnika1880]

thanx a lot sir