Parallel Computing in R
11:34
Жыл бұрын
R Shorts: Timing Your Code
1:39
Жыл бұрын
R Shorts: Appearance/Themes
0:51
Жыл бұрын
Intro to R-Markdown
14:15
Жыл бұрын
Naming Items in a For Loop in R
12:56
Intro to Excel, Mean, and Variance
22:09
Logical Fallacies: Anecdotes vs Data
0:59
Logical Fallacies: Ad Hominem
1:00
2 жыл бұрын
Logical Fallacies: The Strawman
1:00
My YouTube Video Source
0:29
2 жыл бұрын
Пікірлер
@MattBirch
@MattBirch 16 сағат бұрын
You are overcomplicating it. My x* values are the solutions and do not have any unsolved or endogenous variables in them. They tell you x1 and x2 as functions of model parameters. This means a simple comparative static of model parameters works. If p1 changes, then the optimal x1 changes by a corresponding amount. Hope that helps.
@SujanChakraborty-s3u
@SujanChakraborty-s3u 20 сағат бұрын
This is incorrect. If the price(s) or income changes, the consumer's optimal demand changes through changes in all first order conditions. You need to differentiate each of the three first order conditions, then set up these equations in matrix form and finally apply Cramer's rule to solve for income or price effects.
@guillermomendoza2973
@guillermomendoza2973 2 күн бұрын
Great Explanation, very helpfull for my course of Environmental Economics and Governance. Greetings from Cologne, Germany.
@christineadhiambo2896
@christineadhiambo2896 7 күн бұрын
thanks a million,
@MattBirch
@MattBirch 5 күн бұрын
@@christineadhiambo2896 my pleasure!
@guedes_133
@guedes_133 Ай бұрын
Obrigado pelo vídeo!
@MattBirch
@MattBirch Ай бұрын
De nada!
@Saranjot-zh1ow
@Saranjot-zh1ow Ай бұрын
Sweet spot = g sp*t 😂
@nazifatasnem5001
@nazifatasnem5001 Ай бұрын
he deserves 1M subscribers
@MattBirch
@MattBirch Ай бұрын
Haha, I wish! But thanks!
@woodenlasse224
@woodenlasse224 Ай бұрын
Thank you so much, for the explanation! coherent and articulate
@MattBirch
@MattBirch Ай бұрын
Glad it helped! Good luck!!
@zacharyaziz1034
@zacharyaziz1034 Ай бұрын
Thank you so much
@MattBirch
@MattBirch Ай бұрын
You're welcome! Good luck with micro!
@ATOTREVEALS676
@ATOTREVEALS676 Ай бұрын
Really nice
@MattBirch
@MattBirch Ай бұрын
Thanks! Good luck!
@theosungminjeong6251
@theosungminjeong6251 Ай бұрын
Hmmm, I thought that in this case there is no best response for firm 1 because it can get infinitesimally closer but under MC2 = 20 such that the infinite limit of p1 converges to 20.
@MattBirch
@MattBirch Ай бұрын
Yeah in pure Bertrand the gap in the best response is infinitely small. I find people are more likely to understand it if you describe it as barely undercutting the other price. Semantics about the magnitude of the gap aside, that is still a best response function. My response is to beat your price by the smallest possible gap, conditioned on my price being greater than or equal to my MC.
@pedrocolangelo5844
@pedrocolangelo5844 2 ай бұрын
Absolutely great! Thank you for sharing it with us, sir
@MattBirch
@MattBirch 2 ай бұрын
My pleasure! Happy econ-ing!
@roediting7993
@roediting7993 2 ай бұрын
Thanks Brother ❤❤
@MattBirch
@MattBirch 2 ай бұрын
My pleasure!
@sussedoutandpissedoff5448
@sussedoutandpissedoff5448 2 ай бұрын
Hey, do you have a GitHub account? I am trying to do this with a dataset consisting of 100,000 people segmented into three groups. Wanna join?
@momotaakter7589
@momotaakter7589 2 ай бұрын
Thankuuuuu
@MattBirch
@MattBirch 2 ай бұрын
You're welcome!!
@aswanism
@aswanism 2 ай бұрын
Fantastic! Thanks a tonne!
@MattBirch
@MattBirch 2 ай бұрын
Heck yes! I still use this instead of the fancy stuff!
@ambersingh3175
@ambersingh3175 2 ай бұрын
watching from india love u sir we respect u
@MattBirch
@MattBirch 2 ай бұрын
Well Amber, this comment made me smile! Thanks for the kind words, and I am glad you liked the video!
@ambersingh3175
@ambersingh3175 2 ай бұрын
@MattBirch you are a great teacher we need more teachers like you, you are very kind and very informative and u sound very sweet i love u soo much. 💯💯❤️❤️ I am turning 16 this year but never met a teacher like u
@gracelau2637
@gracelau2637 2 ай бұрын
Thank you soooo much , really appreciate it❤😊🎉Your teaching really helps me . Solve the problem I used a lot of time to think of .Don’t want to make comparison,but your explanation in video ways is clearer than my tutor write a paragraph explaining.😢Finally,I know how to do these questions.
@MattBirch
@MattBirch 2 ай бұрын
Yay! That is awesome! Glad it helped!
@anapaty9630
@anapaty9630 2 ай бұрын
amazing serie of videos for learning! :)
@MattBirch
@MattBirch 2 ай бұрын
That is great to hear!! I find that just getting started in a new language is often the hardest part, so I am glad you found these useful!
@thetanman6803
@thetanman6803 2 ай бұрын
very helpful, thanks
@rishitmittal1334
@rishitmittal1334 2 ай бұрын
What does it mean if mb is bigger than mc is it good or bad for economy or it shows free riding problem
@thetanman6803
@thetanman6803 2 ай бұрын
really helpful
@MattBirch
@MattBirch 2 ай бұрын
Good! And good luck!
@TegenehailemeskelGebre
@TegenehailemeskelGebre 2 ай бұрын
Thanks more
@MattBirch
@MattBirch 2 ай бұрын
You're welcome! Good luck!
@TegenehailemeskelGebre
@TegenehailemeskelGebre 2 ай бұрын
@@MattBirch tanks for talking me have a nice time
@Summer-zb8rw
@Summer-zb8rw 2 ай бұрын
this is an amazing video, awesome explanation!
@MattBirch
@MattBirch 2 ай бұрын
Glad it helps! Happy econ-ing!
@solo4840
@solo4840 3 ай бұрын
This question had been hurting my head for 1 hour plz help i legit dont know what i mdoing wrong Consider a Bertrand duopoly where market demand is P(Q)=2-3Q. Each firm faces a marginal cost $4 and a fixed cost of $6. what is one market price that can occur in a Nash equilibrium? This is the hint that is given:In a Bertrand with fixed cost, NE is when only one firm operates in the market and the other produces zero. The one that is operating produces at the monopoly price. What I did was since it says we will charge monopolist price i set MC of 4 equal to MR which is 2-6q and got -3 as Q. HELP PLZ EDIT: UPDATE A LOT OF OTHER STUDENTS IN THE CLASS ARE SAYING THIS QUESTION AS A MISTAKE OR TYPO IN IT!!!!
@MattBirch
@MattBirch 2 ай бұрын
If there are fixed costs, both charging P=MC will mean they both lose money. Not an equilibrium. You have the right idea. If one firm is gone, the other can do monopoly pricing. You are also right that this setup leads to a negative quantity. If you think about it, the mC is higher than the highest part of the demand curve. Neither firm is capable of turning a profit, even if the other is gone. Hope that helps.
@Coast2Curb
@Coast2Curb 3 ай бұрын
Thank you so much for this video! you just saved me on one of my assignments.
@MattBirch
@MattBirch 3 ай бұрын
My pleasure!
@solo4840
@solo4840 3 ай бұрын
I LOVE YOU
@MattBirch
@MattBirch 3 ай бұрын
Awwe that's sweet! Glad you liked it!
@solo4840
@solo4840 3 ай бұрын
@@MattBirch just a quick question for type of duopoly we dont consider marginal revenue right?
@MattBirch
@MattBirch 3 ай бұрын
@@solo4840 marginal revenue is always relevant to profit making decisions. It can look different though. For instance, with Bertrand it would actually be a function of p instead of q, so we often ignore it and just logic through the price vs cost comparison.
@solo4840
@solo4840 3 ай бұрын
@@MattBirch alright thanks so much!
@maxbegun3898
@maxbegun3898 3 ай бұрын
beast!
@MattBirch
@MattBirch 3 ай бұрын
Haha, glad you approve!
@taziblessing9305
@taziblessing9305 3 ай бұрын
You way too fast😢😢😢
@MattBirch
@MattBirch 3 ай бұрын
Yeah it is a lot. But I suppose you can either fiddle around with playback speed or just pause a lot. 🤷 Good luck!
@BB-fp9ce
@BB-fp9ce 3 ай бұрын
Soory, why borrowing money is negative net export? I'm borrow and get money, and I have good ans services which I can sell also🤯
@deborahspogter106
@deborahspogter106 3 ай бұрын
Thank you this was incredible and informative
@MattBirch
@MattBirch 3 ай бұрын
I am glad you liked it! Good luck!
@poseidonm7
@poseidonm7 3 ай бұрын
good vid, used it to explain strawmanning to my lil bro.
@MattBirch
@MattBirch 3 ай бұрын
Glad to hear it! Nice work!
@blackbird4950
@blackbird4950 2 ай бұрын
Thank you Matt this was helpful
@samtheham1280
@samtheham1280 3 ай бұрын
you sir... are a life saver thank you so much king!
@MattBirch
@MattBirch 3 ай бұрын
Glad you liked it! 😁
@sebastianodalsie7687
@sebastianodalsie7687 3 ай бұрын
If we have a percentuage subsidy, the exercise as it should be carried out?
@MattBirch
@MattBirch 3 ай бұрын
Same idea. You could figure out the dollar value of the percentage subsidy and use these steps exactly, or you could get a little more creative and add a ratio into your setup. I'll leave that to you. Good luck!
@sebastianodalsie7687
@sebastianodalsie7687 3 ай бұрын
Ok so for example if I have a subsidy for producer and consumer of 70% of the total expenditure of a certain product or market. How should I construct supply and demand functions?
@MattBirch
@MattBirch 3 ай бұрын
@@sebastianodalsie7687 well the equilibrium price is constant right? So I would compare subsidy percentage to that . Hope that helps, but I also don't want to help too much with your work 😁
@sophiejayawindgaetter715
@sophiejayawindgaetter715 3 ай бұрын
I’m watching this video as help for a problem I’m having when prepping for my micro exam, could you maybe help me out the problem is=TASK 2: Equilibrium. The demand for student apartments is given by Q=1000-P/2, while the supply is given by Q=P/2. a) Calculate the consumer surplus, the producer’s surplus, and the total surplus. b) Suppose that the rent price is set at 600 Euros by the local government. Calculate the consumer surplus, the producer’s surplus, and the deadweight loss. c) Suppose that the rent price is still set at 600 Euros by the local government, but at the same time the government pays a subsidy of 200 Euros to the owner of each house that is rented. Calculate the consumer surplus and the producer’s surplus.
@MattBirch
@MattBirch 3 ай бұрын
This one might be more appropriate; kzbin.info/www/bejne/emrRlIWpnLunfqM
@MattBirch
@MattBirch 3 ай бұрын
Or this: kzbin.info/www/bejne/pYTWYad4eaeNb80
@You_are_so
@You_are_so 4 ай бұрын
How do you find optimal combination of goods using indifference curve approach?
@MattBirch
@MattBirch 3 ай бұрын
Not sure exactly what you are looking for but I bet something here will help: Utility Maximization and Cost Minimization Videos: kzbin.info/aero/PLWd1brOYtkZWY-hCZ-7Sm3BQi-wqRw9Nu
@hahawomen1
@hahawomen1 4 ай бұрын
hellos can I ask why do you double the slope?
@MattBirch
@MattBirch 4 ай бұрын
Sure. It comes from the calculus if you have a linear demand curve. The derivative of q(a-bq) is a-2bq.
@sussedoutandpissedoff5448
@sussedoutandpissedoff5448 4 ай бұрын
What happens if the firms chooses quantities instead of prices and can crammers rule be use to solve this?
@MattBirch
@MattBirch 4 ай бұрын
I am afraid I don't even remember Crammers rule. In general, if they are choosing q, differentiate with respect to q instead of p. Depending on your setup, the steps should be somewhat similar.
@honeytoosweet
@honeytoosweet 4 ай бұрын
May I ask, Why the q became q² in -200/q²?
@koningsberg
@koningsberg 4 ай бұрын
Makes so much sense!!!
@koningsberg
@koningsberg 4 ай бұрын
I was completely lost till i saw your video. How on earth more people didn't post a video about this. Thank you so much sir you explained the whole situation so well!
@MattBirch
@MattBirch 4 ай бұрын
I am glad to hear it! Good luck!
@StroInTheShell
@StroInTheShell 4 ай бұрын
This was excellent. Thank you sir
@redwings02
@redwings02 4 ай бұрын
@MattBirch, love the video. Very useful for what I'm working on. Question though: since the R-Squared for the IV model is so low, are we still able to trust the slope coefficient and thus PED? How high of an R-Squared do we need to have a reliable demand curve?
@MattBirch
@MattBirch 4 ай бұрын
Totally depends on context. The r squared can be higher than my little toy example of course! You can construct proper confidence intervals in an IV framework,and from there it just depends on what you need. But if you have confounding or endogeneity in your model and do normal OLS, it won't usually matter what the r squared or CI is. Because the model will give you an estimate that is biased, even with large data sets.
@rijunath3036
@rijunath3036 4 ай бұрын
sir, csn i ask you a question?
@MattBirch
@MattBirch 4 ай бұрын
Sure, but no promises. 🙂
@rijunath3036
@rijunath3036 4 ай бұрын
@@MattBirch are phd in Eonomatric?
@MattBirch
@MattBirch 4 ай бұрын
​@@rijunath3036almost. PhD in economics, with a focus on econometrics.
@rijunath3036
@rijunath3036 4 ай бұрын
@@MattBirch one of my friend did masters in Economics. NOW he wants to do phd in econometric.
@rijunath3036
@rijunath3036 4 ай бұрын
i also want to be data scientist. can you give me your valuable suggestion, how to start learn and which topics i will cover for it. I am masters in Computer science and engineering. my future target is to do freeleansing as a data analyst.
@rubydoeleman4129
@rubydoeleman4129 4 ай бұрын
Hi Matt, how do we get the first term 10/N in the total cost function Lt/2N + LM + NF = 10/N + 450 + NF? Shouldn't it be Lt/2N = 90 * 4 / 2N = 180 / N? Obviously, this gives us an incorrect outcome. However, I don't know how to get to the correct answer 10/N.
@ria04466
@ria04466 4 ай бұрын
Thank you thank you thank you!!!! Now I finally understand how to draw ICs. No book, no video, no tutor made this as easy as you did.
@MattBirch
@MattBirch 4 ай бұрын
Glad to help! Good luck!!
@lisagreenpope2938
@lisagreenpope2938 4 ай бұрын
Great info- just enough to actually get up and running, and then figure all the hard stuff out later. Thanks!
@MattBirch
@MattBirch 4 ай бұрын
Glad you liked it! This stuff can be nuts when you are first getting started!
@cisyjin
@cisyjin 4 ай бұрын
very helpful!
@sussedoutandpissedoff5448
@sussedoutandpissedoff5448 4 ай бұрын
Hello, I have ben watching your videos religiously, they are a gem. Is this whole playlist a standard IO course in order?
@MattBirch
@MattBirch 4 ай бұрын
Glad you are liking them!! I wouldn't say it is a full IO course, but everything in the playlist should come up in an IO course. Probably in this order, but no guarantee.
@sussedoutandpissedoff5448
@sussedoutandpissedoff5448 4 ай бұрын
Thank you very much for your quick response. @@MattBirch
@sharanyaravindranath6323
@sharanyaravindranath6323 4 ай бұрын
Thank you so much
@MattBirch
@MattBirch 4 ай бұрын
My pleasure! Good luck!