a basic doubt

[hs]

i dont know why but i m stuck on this one..

[mrittik]

just draw the IS curve & differentiate  wrt Pf and for the next one u get a +ve relationship with e & Y, so if Marshall-Lerner is satisfied the in SR e decreases then Y decreases OR vice-versa. plz try it again.

[yuganshi]

[hs]

 thnx
i was taking E as ep*/p