Conceptual Doubts from Q 1-20-DSE 2011
Posted by Erika on May 27, 2013; 8:14am
URL: http://discussion-forum.276.s1.nabble.com/Conceptual-Doubts-from-Q-1-20-DSE-2011-tp7581332.html
I am currently solving the 2011 paper, which is the first paper Im solving. I have a great deal of conceptual difficulties both in theory and numericals. Im posting my question in parts and if one can explain the working (or theory), I would be really grateful :) only a month left. :/ starting to worry now
Q1. How is x-1 local min? I read through other answers and differentiated the func four times but still didnt not get f(x) > 0 for being a min. Please help me understand!
Q2. How do we go about mapping a func as given: f(x,y)=(x-y,x+y) and find its range?
Q3. What is the idea behind solving this one? I mean to put- which topic is this under and how do we get 2 as the min number of scalars? If someone could give me the working solution.
Q6. In my opinion, it shoud be (d) 'both a and b' while the ans key says (b). I justified mine saying 20 is definitely less REPRESENTATIVE of all MA students, thus the error in calculation of mean. Although when one goes from 20 to 30 students, the PRECISION increases and the sample becomes more representative.
So, which logic is correct. If mine is wrong, kindly give logic to only (b) being correct.
Q10. Given the demand and cost function, number of firms, price=p; how do we calculate the equilibrium price?? (I tried looking this up online but there isnt any solution with exact same given info)
Q11. Similar doubt as above. How do we calculate the eqm price change? What topic this falls under and which formula do we use?
Q 12. How do we go about calculating profit maximising price for a monopolist with an inverse demand function? I considered MC=20 and p=60.2q (given). if w differentiate MC it gives 0...which is mot minimising costs. .?
Q13. I understand this question is not based on any trick but simple theort. Which topic should i cover to strengthen this one? or if there trick in this question which need more application than theory??
Q16 and Q17. how does ISLM change with change in income and increase in inflation?? i have the answers with me but need to understand the concept.
Q18. Im very confused with the logic of devaluation in currency and its effect based on elasticities of x and m....giving example in rupees can someone please explain how (c) is correct?
I know these are MANY questions. But i really do need help. Any help is appreciated and I am sure it'll help other readers as well. In the mean time im going to buy DU BA eco books and read them through. Also Ill post doubts from Q21-60; the ones I still dont get after reading the discussions.
Thanks and cheers!!
URL: http://discussion-forum.276.s1.nabble.com/Conceptual-Doubts-from-Q-1-20-DSE-2011-tp7581332.html
I am currently solving the 2011 paper, which is the first paper Im solving. I have a great deal of conceptual difficulties both in theory and numericals. Im posting my question in parts and if one can explain the working (or theory), I would be really grateful :) only a month left. :/ starting to worry now
Q1. How is x-1 local min? I read through other answers and differentiated the func four times but still didnt not get f(x) > 0 for being a min. Please help me understand!
Q2. How do we go about mapping a func as given: f(x,y)=(x-y,x+y) and find its range?
Q3. What is the idea behind solving this one? I mean to put- which topic is this under and how do we get 2 as the min number of scalars? If someone could give me the working solution.
Q6. In my opinion, it shoud be (d) 'both a and b' while the ans key says (b). I justified mine saying 20 is definitely less REPRESENTATIVE of all MA students, thus the error in calculation of mean. Although when one goes from 20 to 30 students, the PRECISION increases and the sample becomes more representative.
So, which logic is correct. If mine is wrong, kindly give logic to only (b) being correct.
Q10. Given the demand and cost function, number of firms, price=p; how do we calculate the equilibrium price?? (I tried looking this up online but there isnt any solution with exact same given info)
Q11. Similar doubt as above. How do we calculate the eqm price change? What topic this falls under and which formula do we use?
Q 12. How do we go about calculating profit maximising price for a monopolist with an inverse demand function? I considered MC=20 and p=60.2q (given). if w differentiate MC it gives 0...which is mot minimising costs. .?
Q13. I understand this question is not based on any trick but simple theort. Which topic should i cover to strengthen this one? or if there trick in this question which need more application than theory??
Q16 and Q17. how does ISLM change with change in income and increase in inflation?? i have the answers with me but need to understand the concept.
Q18. Im very confused with the logic of devaluation in currency and its effect based on elasticities of x and m....giving example in rupees can someone please explain how (c) is correct?
I know these are MANY questions. But i really do need help. Any help is appreciated and I am sure it'll help other readers as well. In the mean time im going to buy DU BA eco books and read them through. Also Ill post doubts from Q21-60; the ones I still dont get after reading the discussions.
Thanks and cheers!!
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