jnu 2017 answers sss, let's discuss

[soimmoi]

let's discuss the ans.

[Pravin]

What do you think about 41 and 42 ? I am not understanding how to approach this question.

[Pravin]

How did you approached 31 and 32 ? I think answer should be d and c respectively.

[Pravin]

Hey, reply soon.

[soimmoi]

31) d
32)c
just calculate multiplier 1-c+ct+m

[soimmoi]

41 and 42 i'm still trying to figure out how to proceed.
47 is to be done the way i've approached??
48) global max is 28 at x = -2

[Divya sehgal]

My answer for Q48. global max=18 at x=3

[soimmoi]

yes, you're correct.

[Econenthusiast]

How is Q21 done?, do you guys have any idea ?

[soimmoi]

aggregate employment is the ratio of aggregate output and the average productivity of
labour – according to this it should be C. others please comment!

[Econenthusiast]

I'm seeing the formula connecting employment,, productivity aggregate output for the first time. Could you please tell which concept this is taken from soimmoi. What I did was the following: Since Y= A L^a K^1-a
the exponent of L shows labor productivity.

For country A labour productivity is lesser than country B, accordingly country B has higher growth than A. The other factor is L which shows the labor force, even as country B has a higher unemployment rate its labor force must be growing at a higher growth rate ( which reduces the effect of unemployment on L ) so as to give 8 percent growth rates. So the option would be (b).
 I'm not at all convinced by the answer though. Amit sir please help us out.

[mesh]

I GUESS THE ANSWER FOR 21 IS C BUT I THOUGHT IT DIFFERENTLY. INCREASE IN PRODUCTVITY OF LABOUR CAN BE TAKEN AS THE INCREASE IN N.O OF LABOUR ITSELF. SO THIS IMPLIES THAT WHEN UNEMPLOYMENT RATE IS 5% AND AND INCREASE IN LABOUR IS 2%, THE NET CHANGE IN LABOUR FORCE
IS OF 3% IN ECONOMY1 AND SIMILARLY OF 6% IN ECONOMY 2...... THE GROWTH RATE BEING NEGATIVE IN BOTH.... SO THE GROWTH RATE OF LABOUR RELATIVE TO ECONOMY COMES OUT TO BE 4/3 IN ECONOMY 1 AND 8/6 WHICH IS ALSO 4/3 IN ECONOMY 2... HENCE ANSWER IS C.... THATS HOW I THOUGHT ABOUT IT !!

[mesh]

DOES ANYONE HAS THE PREVIOUS YEARS ANSWER KEY??

[Econenthusiast]

hey mesh ... guess this answer might work:

We take Y = A N( 1 - u )
Now we find the growth rate of Y w.r.t to A, N and 1-u

Ln Y = Ln A + Ln N + Ln ( 1-u )

dY/ dT x 1/Y = dA/dt x 1/A + dN/dt x 1/N + d(1-u)/dt x 1/1-u

Therefore Gy = Ga + Gn + G(1-u)

For A this becomes 4 percent = 2 % + Gn + 0 ( since unemployment rates don’t change with time )
Therefore Gn = 2%
Similarly for B, 8% = 4% + Gn + 0
Gn = 4%

[mesh]

YOU SURE ABOUT THE ANSWER??

[soimmoi]

A perfectly competitive firm produces  100 units of output. It faces a total ftxed cost
ofrs 5,000. The average variable cost (AVC) of production at this output is 10. When
production rises to 101, the total cost of production is rs 6,070. Then at this point
(a) the AC curve must be falling
(b) MC<AVC
(c) the MC curve lies above the AC curve
(d) the firm should exit the industry

[Econenthusiast]

I'm getting option c, what about you ?

[soimmoi]

same c

[soimmoi]

let f(x) be a differentiable function over the interval [0,2]. It is given f(0) =1 and f(x)<= 0 implies f'(x) >0 Then,
a) f(x) <0 in some interval [0,2]
b) f(x) >=0 for all x in interval [0,2]
c) f(x) =0 for all x in interval [0,1]
d) f(x) is strictly positive for all 0<x<1 and strictly negative for all 1<x<2

[Rayee]

Jnu sss 2017 answer key
1. B
2. B
3. C
4. C
5. C
6. A
7. B
8. D
9. C
10. D
11. D
12. A
13. B
14. D
15. D
16. B
17.D
18. D
19. D
20. A
21. B
22. A
23. D
24. C
25. B
26. D
27. A
28.
29. Probably b
30. C
31. D
32. C
33. B
34. C
35. Not sure
36.
37. D
38. C
39. D
40. A