Quasiconcavity to Bordered Hessian
20:30
Supply & Market Equilibrium
36:51
2 жыл бұрын
Пікірлер
@adarshachatterjee493
@adarshachatterjee493 10 күн бұрын
I wish I had this video during my post graduation days. Mas Collel was always a little tough to understand.
@EcoShibajee
@EcoShibajee 10 күн бұрын
I also wanted to deliver the content in this manner for a long time😀
@manika_in
@manika_in 26 күн бұрын
Thank you for this video sir! Very helpful.
@a_visghhwas
@a_visghhwas Ай бұрын
What is the appropriate reading for this, beyond undergrad varian book?
@EcoShibajee
@EcoShibajee Ай бұрын
I will not say, Varian is an appropriate book for this. My suggestion is Satya ranjan Chakravarty Microeconomics
@a_visghhwas
@a_visghhwas Ай бұрын
@EcoShibajee yeah found the relevant reading in src yesterday which has a good treatment, thanks for the help though
@EcoShibajee
@EcoShibajee Ай бұрын
@@a_visghhwas that's great! but you mentioned only varian that's why misunderstood. You can try solving some of the problems on SWF also, if not already done.
@ashwatharun1543
@ashwatharun1543 5 ай бұрын
Hello sir!!Ashwath from sahyadri school here,I am studying economics at the ug level at Loyola college(chennai).I needed to understand this topic better and this was really helpful.
@EcoShibajee
@EcoShibajee 5 ай бұрын
Happy to know Ashwath! Please recommend this channel to others also
@a_visghhwas
@a_visghhwas 6 ай бұрын
our university instructor most probably taught linear city model using tirole's book. I have a hard time following that book. So, in what reference is the hotelling's linear city model lucidly explained? Thanks
@EcoShibajee
@EcoShibajee 6 ай бұрын
lucidly means the basic logic behind the result
@a_visghhwas
@a_visghhwas 6 ай бұрын
yeah, so far tirole's portion of vertical and horizontal differentiation models does the job but i find it a bit lacking.
@EcoShibajee
@EcoShibajee 6 ай бұрын
@a_visghhwas Tirole is a classic, I think that’s why everybody takes its name while teaching. But I think, like any classic, Tirole also can not be a book to start a topic
@missdagger1283
@missdagger1283 8 ай бұрын
Sir how about jay l devore of probability and statistics?
@EcoShibajee
@EcoShibajee 8 ай бұрын
It is a mid-level book suitable only for problem solving. I guess because it is for Engineering, the approach suffices. It will make workable but not for learning Statistics, as par my view.
@infinitepoetry5427
@infinitepoetry5427 8 ай бұрын
How can we practically apply this thing to a firm. For example how can we use all these ppc, gupf to in practical scenario. What if we have mrts of labour to capital in one firm is greater than that of the other one. How can we solve the problem using welfare economics efficiency.
@EcoShibajee
@EcoShibajee 8 ай бұрын
Draw the relevant diagram
@infinitepoetry5427
@infinitepoetry5427 8 ай бұрын
Why gupf is not smooth as ppc
@EcoShibajee
@EcoShibajee 8 ай бұрын
GUPF is not constructed in the same way. Each point here corresponds to different edgeworth boxes. So smoothness cannot be derived.
@infinitepoetry5427
@infinitepoetry5427 8 ай бұрын
@@EcoShibajee thank you
@kitosiriikrit7573
@kitosiriikrit7573 8 ай бұрын
you sir explained it so well. I wish my teacher was a good as you !!! Many thanks!!!!
@tristanschwarz42
@tristanschwarz42 11 ай бұрын
Top G Top Striker
@prasenjitdey7690
@prasenjitdey7690 Жыл бұрын
Please tell about best beginners probability book for bsc statistics honours students
@EcoShibajee
@EcoShibajee Жыл бұрын
Book by Hoel, Port, Stone vol. 1
@EcoShibajee
@EcoShibajee Жыл бұрын
Introduction to Probability Theory
@prasenjitdey7690
@prasenjitdey7690 Жыл бұрын
Please suggest best books for BSc statistics honours for CALCUTTA university
@EcoShibajee
@EcoShibajee Жыл бұрын
I know what my friends used to study in their hons. as I have sometimes studied from those books. I can suggest you some of them but I think they may be old references. If you want to know anyway I can suggest. As you may understand I had Eco hons. with Statistics & Mathematics.
@logeshwarin3601
@logeshwarin3601 Жыл бұрын
Thank you so much sir tomorrow is my presentation it helped me a lot
@EcoShibajee
@EcoShibajee Жыл бұрын
please share it with others.
@marifkhan7054
@marifkhan7054 Жыл бұрын
Sir please continue uploading videos.
@EcoShibajee
@EcoShibajee Жыл бұрын
I try but my offline classes take a lot if time. I will try to be more frequent. Thank you very much.
@a_visghhwas
@a_visghhwas Жыл бұрын
This is a great one-shot video. I have yet to start intermediate micro, but this will prove to be a great resource to me. Thank you for making this and keeping it free for all. What problem book do you recommend to supplement this topic?
@EcoShibajee
@EcoShibajee Жыл бұрын
Nicholson Snyder
@EcoShibajee
@EcoShibajee Жыл бұрын
Thank you! To be honest, I have not taught something that is unavailable in books otherwise. But given semester time,it is impossible for one student to find all this & study. I can not charge for that. I teach for entrance & for that I do charge fees.
@a_visghhwas
@a_visghhwas Жыл бұрын
​@@EcoShibajee I cannot speak for other students but personally finding videos like these on youtube being taught by no-nonsense instructors (not necessarily have to be from a entrance point of view) actually calms my anxiety for a completeness in a topic however time consuming it may be and foolish the endeavour is. These videos do a good job streamlining the study.Helps in recapitulation after hitting several books for theory and intuition. I imagine as the semesters progresses I wont have the luxury to even spare time writing a long comment :)
@a_visghhwas
@a_visghhwas Жыл бұрын
This is a great video. Thank you for making it. Also, are you considering to start a batch who are going to sit for entrances in 2025? :)
@EcoShibajee
@EcoShibajee Жыл бұрын
Yes. Foundation is 2 year course. Starts from 3rd Sem. In that actually I get more time to teach Economics at an advanced level.
@a_visghhwas
@a_visghhwas Жыл бұрын
@@EcoShibajeeThank you for replying. Is that starting from the month of june too ?
@EcoShibajee
@EcoShibajee Жыл бұрын
No. That will start from July. Primarily because the sem exam in some places are still on.
@a_visghhwas
@a_visghhwas Жыл бұрын
@@EcoShibajee Yes, i was going to ask you that. JU's exams start from 26th June as far as I know.
@EcoShibajee
@EcoShibajee Жыл бұрын
@@a_visghhwas I also got to know from my current students who are writing their 4th sem exams in JU.
@FizzWiz2
@FizzWiz2 Жыл бұрын
What do you think about Jadavpur Uni?
@EcoShibajee
@EcoShibajee Жыл бұрын
Did you go through all the universities & institutes details? If you have, then please let me know which among these made you think of JU as an alternative. Then I can share my thoughts better.
@FizzWiz2
@FizzWiz2 Жыл бұрын
Yeah, I went through the video and was curious to see that other than ISIcal, IIFT no other insti from kolkata/bengal being mentioned. I am not from econ just had econ as a minor at iitd, so I don't know enough about the scene, but since you asked I wonder if HCU or Gokhale is better than JU?, and the doubt is based on my personal interaction with faculty, alumni and students from these three insti. Last I heard JU has an avg placement of 10-12lpa, the top percentile of the class end up at good foreign uni for M.S/ Phds, JU has a really good international exchange program. DSE, IITs, IIFT, igidr is filled with ex JU B.A students. Dept has really good faculty and The student faculty ratio is good. JU is insanely cheap. Has a better brand value (NIRF rank, alumni network etc.) Plus the course is very theoretical and maths heavy, like they have basiyan games, moral hazard etc in Undergrad, & highly theoretical and specialized electives are offered in masters (some of which are not offered in HCU/ Gokhale). Anyway would love to know your opinion.
@EcoShibajee
@EcoShibajee Жыл бұрын
🙂 ​ @FizzWiz2 From my experience of teaching many of them for entrances, I would say that BA is good. But not MA. They still have to go a long way to be professional. In a public platform like this, I would not say more than: "What you heard is correct but its half of the truth." My students studied & studying in all of these institutions, so rest assured, in a more private space I could have shared more. To give you a hint: "Always ask for the proportions as well as absolute number of students getting such offers." Finally, if there is a choice, there is underlying preference ordering🙂
@a_visghhwas
@a_visghhwas Жыл бұрын
@@FizzWiz2 I saw our brochure of Placement Cell 2022-24. In the Placements of the Class of 2021-23 Highest CTC offered was 16.75 LPA , average CTC 11 LPA and Median CTC 12 LPA but no percentages or figures of heads who were offered the above packages were given.I asked some seniors who implied its close to 100. Its sus as hell for sure. The cell , from what i have heard ,are constantly taking initiative to bring in more recruiters , internships but leaving out the proportion as well as absolute numbers (as sir said) reeks of shrouding the figures for attracting students. Hopefully the reality is more aligned to the numbers in the brochure of JU. Also about the "highly theoretical and specialized electives are offered in masters" some PG students actually visited us who made us aware of the papers/electives which they were not allowed to take. Yes these electives are offered on paper but due to lack of teacher of something they were not optable in the semester. There are was a conflict in the use of computer labs too for PG students which is too embarrassing for a university offering economics to write here.
@EcoShibajee
@EcoShibajee Жыл бұрын
As I said that these facts are more appropriate to share in a more private mode of communication
@a_visghhwas
@a_visghhwas Жыл бұрын
speaking broadly (for entrance apart from semester exams) , what is the one proper real analysis textbook do you suggest ? I have picked up Kenneth A. Ross and downloaded the apostol mathematical analysis book yet. The pass course books for real analysis is very shallow and exam oriented. I am puzzled regarding what book to follow.
@EcoShibajee
@EcoShibajee Жыл бұрын
Your choices are correct
@nipunkant9516
@nipunkant9516 Жыл бұрын
what is the full form of [SRC microeconomics] ?
@EcoShibajee
@EcoShibajee Жыл бұрын
Satya Ranjan Chakrabarty; Microeconomics
@sayantanisarkar458
@sayantanisarkar458 Жыл бұрын
In cournot model we assume that duopolist will decide amount of output which is profitable for him assuming it's rival will keep output constant. Then in cournot equilibrium (diagrammatically) when firm-1 produces a certain output then firm-2 views it and changes the output level... Both are contradictory ! Can you explain ?
@EcoShibajee
@EcoShibajee Жыл бұрын
not contradictory. just they assume wrong. setai critique e bolbo. there is no learning
@sayantanisarkar458
@sayantanisarkar458 Жыл бұрын
Thanks 😊
@EcoShibajee
@EcoShibajee Жыл бұрын
Please subscribe & share among friends
@joshua5338
@joshua5338 Жыл бұрын
You are a saviour.
@User89841
@User89841 Жыл бұрын
Sir please explain what you did after 11:30
@EcoShibajee
@EcoShibajee Жыл бұрын
I applied implicit function theorem. First I constructed the implicit functions & then I took total derivative. This is the way you apply the theorem to form the differential equations
@User89841
@User89841 Жыл бұрын
Thanx sir ji. Lagta h ki is saal bhi pass ho jaonga😅😅😅😅
@lemon7623
@lemon7623 Жыл бұрын
if P = 400 - 4q, would the FOC be 400 - 4qi - sum of qj (j not = i) - 10 = 0?
@EcoShibajee
@EcoShibajee Жыл бұрын
The first order of (400 - 4q)qi will be 400 - 8qi - 4 sum of qj (j not equal to i) - 10. I guess 10 is MC?
@lemon7623
@lemon7623 Жыл бұрын
@@EcoShibajee thank you!!!!
@sohya_bean
@sohya_bean Жыл бұрын
Thank you for the concise explaination! You opened my eyes to how income tax is not always the best in improving productivity and I can see it clearer now!
@rakeshsantra3222
@rakeshsantra3222 Жыл бұрын
Sir please suggest me a best book on money and financial market
@EcoShibajee
@EcoShibajee Жыл бұрын
Tell me which degree or course you are taking. There are books of different orientation.
@rakeshsantra3222
@rakeshsantra3222 Жыл бұрын
@@EcoShibajeeBSc economics honours under CU 6th semester.
@Shinzo_sasegayo
@Shinzo_sasegayo Жыл бұрын
Sir can we explain cournot model with mr curve in bcom 1st sem exam
@EcoShibajee
@EcoShibajee Жыл бұрын
the general culture you give the explanation the way it is described in the class. I suggest you talk to your professor to avoid any confusion.
@markoblanusa5667
@markoblanusa5667 Жыл бұрын
What if the marginal cost isn't the same for each firm ?
@EcoShibajee
@EcoShibajee Жыл бұрын
Then we can not use symmetry as different MC will imply different firms. The calculation will be complex & the adjustment process will be little different. With the increase in 'n', the high MC firms will leave as the resulting equilibrium will unsustainable for them. However we can show the result p = MC in limit.
@biistful
@biistful Жыл бұрын
Very good video. Greetings from Finland
@yelim1023
@yelim1023 Жыл бұрын
this video helps me a lot, thank you!
@jozerashid4417
@jozerashid4417 2 жыл бұрын
Thanks sir
@prabaldam2703
@prabaldam2703 2 жыл бұрын
Sir , 5th sem er development economics er class kobe hobe
@EcoShibajee
@EcoShibajee 2 жыл бұрын
development economics ami emnite poraina. jodi kono topic bolo, I can try & make a video on it. It will be a pleasure
@prabaldam2703
@prabaldam2703 2 жыл бұрын
The marxian theory, rostow's stages of economic growth, Nelson's low level equilibrium trap and leibenstein's critical minimum effort thesis
@pritamsen2676
@pritamsen2676 2 жыл бұрын
Sir do you conduct online or offline tuition class for ug econ hons?..I am from Kolkata..
@EcoShibajee
@EcoShibajee 2 жыл бұрын
Chat with me here wa.me/message/RTVKYZFS3S4KO1
@marifkhan7054
@marifkhan7054 2 жыл бұрын
Great explanation
@EcoShibajee
@EcoShibajee 2 жыл бұрын
Thank you.
@Noah-cu8du
@Noah-cu8du 2 жыл бұрын
ρɾσɱσʂɱ
@ranadeepdas4461
@ranadeepdas4461 2 жыл бұрын
Sir, I just today discovered today your channel and it's such a gem. I am studying Economics in SXC Kolkata and will be graduating this year. How to access you? Do you teach professionally anywhere so as to get access to your classes?
@EcoShibajee
@EcoShibajee 2 жыл бұрын
Hi. Thanks you loved it! It's always a pleasure! I reside in Garia & I train students for PG Entrance Examination. Till this year it's online due to COVID. However, I will start offline training for entrances of 2023 in July 2022. I reside in Garia. I will share my WhatsApp here later. & please share the channel with your friends & juniors as well as seniors. To reach as much student as possible is my sole purpose.
@ranadeepdas4461
@ranadeepdas4461 2 жыл бұрын
Sir absolutely. Please do share.
@MrBhaskkarsinha
@MrBhaskkarsinha 2 жыл бұрын
Thanks a lot
@EcoShibajee
@EcoShibajee 2 жыл бұрын
Always happy to share.
@qasimijaz3046
@qasimijaz3046 2 жыл бұрын
love u
@derrickdray1822
@derrickdray1822 2 жыл бұрын
I was following till you got to the determinant of the the J
@EcoShibajee
@EcoShibajee 2 жыл бұрын
I think that happened because I applied Implicit Function Theorem there by using Jacobian of the optimisation problem without stating the background theory. If this is the case, please confirm me. Currently, I don't have any class on Jacobian but I will definitely take one.
@prabhatprasad141
@prabhatprasad141 2 жыл бұрын
None of these books are available online
@soubhagyaghosh8558
@soubhagyaghosh8558 2 жыл бұрын
Was a great lecture.....learned a lot , thank you !
@EcoShibajee
@EcoShibajee 2 жыл бұрын
Please share with anybody who needs it.
@soubhagyaghosh8558
@soubhagyaghosh8558 2 жыл бұрын
@@EcoShibajee Nischoi sir......onek onek dhonyobad aapnake 🙏 Aapni ki kolkata theke?
@EcoShibajee
@EcoShibajee 2 жыл бұрын
@@soubhagyaghosh8558 hya.
@soubhagyaghosh8558
@soubhagyaghosh8558 2 жыл бұрын
@@EcoShibajee ok sir
@theiasaspirant2893
@theiasaspirant2893 2 жыл бұрын
very nice👍👏
@theorangeblossomtales6545
@theorangeblossomtales6545 2 жыл бұрын
Could you please provide the link of the video where you've defined Philips curve ...
@EcoShibajee
@EcoShibajee 2 жыл бұрын
kzbin.info/www/bejne/nmPFq2aXftZ2bqs
@donghyun7189
@donghyun7189 2 жыл бұрын
According to your video. In terms of equilibrium of Rawlsian, and the utilities must be equal to everyone’s? if we suppose there are the people, the person 1’s utility= the person2’s utility?
@marifkhan7054
@marifkhan7054 2 жыл бұрын
Your all lecturer are very unique than others, having calculus which makes it very interesting and well explained 👍
@EcoShibajee
@EcoShibajee 2 жыл бұрын
Thank you very much.
@marifkhan7054
@marifkhan7054 2 жыл бұрын
very well explained
@user-ce1vj2pk1m
@user-ce1vj2pk1m 2 жыл бұрын
HELLO, Sir I am a college student in South Korea, studying microeconomics, and I've got some questions regarding your explanation. You just said that the GUPF IS NOT AN ENVELOPE OF UPF'S and I wonder why. what I've thought is that the GUPF satisfies both properties below a) the locus of all the overall efficient points i.e. MRT=MRSa=MRSb (parallel) b) the outermost part of the UPFs i.e. GUPF is the envelope of all the UPFs and if (as you have said) the GUPF is not an envelope of the UPFs, then is it that there are 'some' part of 'some' of the UPFs that is located outside the GUPF? THANK YOU IN ADVANCE
@EcoShibajee
@EcoShibajee 2 жыл бұрын
We call a function say, F, an envelope of some function G, if there is a parameter in G the removal of which or considering several values of which we can get back F. To this extent, I suggest you to consult any differential calculus book which has a chapter on Envelopes. This is specifically because understanding the answer to query (which is a very good question & rarely asked) requires a good mathematical idea of Envelope. UPF does not have any such parameter, changing the values of which we can get GUPF. There is no part of UPF which lies outside GUPF but that does not mean GUPF has to be an Envelope. Since the amount of available commodities ( i.e. the Edgeworth Box itself) change from one UPF to another, we can not express GUPF as an envelope.