DSE

[ritu]

1.f(x1,x2)=(x1+1,x2+1)
& g(x1,x2)=(x2,x1)
which of these two a linear function?????????
a.both are linear
b.neither is linear
c.f is linear ,g is nt
d.g is linear f is nt


2.Ua=x+y    E=(1,0)
Ub=(e)^x^2+y^2+2xy      E=(0,1)
what is the pareto efficient set????
a.(x2,y2)=(1-x1,1-y1) ,x1,y1 E [0,1]
b.(x1,y1)=(e^a,e^b) and (x2,y2)=(1-e^a,1-e^b) for all a,b E (-00,0)  {E means belongs to}
correct answer is a....my question is what is the diff btwn these two options above...????/

3.question 55,56 of 2008...if A is a set of real nos.........................


.pls pls pls help with these questions...

[Khagesh]

For LT's:

http://tutorial.math.lamar.edu/Classes/LinAlg/LinearTransformations.aspx

[ritu]

so both the functions are linear???????

[Khagesh]

Nop f ain't coz

f(cx1, cx2) property leads to : (cx1+1, cx2+1)

bt it aint equal to

cf(x1,x2)=(cx1+c, cx2+c)

[a.m]

hey hi ritu !

have a little concern, i havent got my photos attested by any gazetted officer and i've already posted them to DSE ! is it gonna create problems ?

[Chinni18]

@ a.m.
I had called the DSE people, they said its not required, only the bonafide is necessary  Self-attestation will suffice

[a.m]

@ chinni.,. does the same hold true for the admit card ? Is it okay if i leave it unattested ?

[Chinni18]

Hmm I'm not very sure about that, a.m. I think it'll be okay. I will call them tomorrow morning and ask.
Has anyone on the forum done attestation?

[a.m]

you from delhi university ????!

I am going crazy with the DSE questions !! i find them soooooo tough !!! back here, in BA course we hardly had any maths. its taking a toll on me now !

[Khagesh]

I've got it attsted, though i sent an attested copy too

[Chinni18]

No I am unfortunately not from D.U  Maths is okay, but the quant eco is pretty bad for me. I think other than D.U., no university really teaches much that's useful in entrances such as these

[Khagesh]

Waise im an engg guys so tell wat all imp topics shld b my priority in Eco ???

[a.m]

@ chinni : thats what :(

[Chinni18]

Khagesh you should do plenty of consumer theory, general equilibrium, production, costs etc. Also topics like intertemporal choice, uncertainty and risk etc. These are for micro.
For macro be sure to do ISLM, monetary theory and AD-AS.

[Chinni18]

I wish DSE had a system of issuing an admit card like IGIDR or JNU. Or at least mailing an admit card like ISI and GIPE. That way we don't need to stress out about whether or not our application was accepted/received

[s]

let a=(a1,a2) and b=(b1,b2)

property of linear fn: f(a+b)=f(a)+f(b) and f(ca)=cf(a) c is a scalar

for function f(.,.):

f(a+b)=f((a1,a2)+(b1,b2))=f(a1+b1,a2+b2)=(a1+b1+1,a2+b2+1)...[use info given]

f(a)+f(b)=f((a1,a2))+f((b1,b2))=(a1+1,a2+1)+(b1+1,b2+1)=(a1+b1+2,a2+b2+2)..

so f is not linear.
similarly go about g(.,.) it'l satisfy both properties of linear fn

[s]

2. entire edgeworth box is set of pareto efficient allocations,in option d since a,b can never take values 0 it eliminates the allocation (x1,y1) (x2,y2) (1,1) (0,0)

[s]

56.

refer to the form of fn(x) given in 55,
now do the same for n=2,n=3 you'l get 1 for all the cases so its a constant sequence.

55. even m stuck ..any suggestions will be really helpful!

[Chinni18]

Hi a.m. I just called the DSE office, they said it's all right, my seat numbers for the exam has been allotted irrespective of the non-attestation stuff. So it's cool. However, I do not know about attesting the admit card

[tim]

hey guys cn u temme frm where cn i study gen eqm.. i hv a prob soolving these questns..how to find out competitive eqm and pareto efficient allocation....pls help !!