DSE 2012 paper discussion-Please join

[Akshay Jain]

@sonia...basic and essentials hav major differences like in essentials there are no proofs which are imp from the point of view of exams....

[SoniaKapoor]

Akshay the proofs are there in the appendix :)

[Akshay Jain]

Ok...they may be there at the back of the book coz i didnt find @ back of chapters....
There is yet another book Introduction to Econometrics by Stock and Watson...I find it really good
you pple can search pdf...I think its available...

[rongmon]

Q 36 and 43 anyone.

[rongmon]

and 49!

[kangkan]

43... there are 10 elemetsn

P(A)=4/10  

Now B can have maximum of 4 and min of 1 elemnt common with A

If A and B are inde,than P(A inter B)=p(a)*p(b)

If no of elemts common is 1,then it will imply p(b)=.25 ..but 0.25 is an inadmissible value since p(b) can only take values 0.1,0.2..,0.9 ,1.0

no of coomon elemts 2 P(b)=0.5(admissible)

No of coomon elemts =3, p9b)=0.75 (inadmssible)

No of common elemts =4 p(b)=1 (admissible)

So p(b)=0.5 or 1.0 hence no of elemts 5 or 10

:)

[Arushi :))]

[Akshay Jain]

very good Arushi..

[rongmon]

Kangkan, Arushi, thank you!

[kangkan]

@gini:

if the income of all persons are doubled,the CDF wud shift left,but the lorez curv wud stay put..hence change in gini is not nescessary.

Now,lets suupose evry one's income doubles but i interchange the income of teo agents..the CDF wud retian its right ward shift,but one persons' income must have decreased and another's must have increased.

So only chyange thats nescessary is that per capita expenditure must have increrased

[Rautparul]

Can anyone please give an elaborated explanation to Q-38?