WOW man! Do you have a document where I can see more about these ideas. This is great! Thank you! (Writing from Mexico. I am trying to study the quality of life of a fishermen community in southern Mexico)
@ibrar2kt10 ай бұрын
Love you man for this
@ojakgnuy3551 Жыл бұрын
thank you to this 9 year old video for satisfying my 1am curiosity
@gabrielomondi6913 Жыл бұрын
This is very helpful. Thanks a bunch buddy.
@spikeydude114 Жыл бұрын
Great video - clear explanation! Why would adding the year cause this to be statistically significant? Are there approaches I can take to ensure all appropriate variables are in the model formula?
@notyoutube40162 жыл бұрын
Very helpful! Thanks so much!
@bourdayrachid38552 жыл бұрын
thanks teacher please can you share with me this file
@ankitmalhotra56392 жыл бұрын
Can we get the data please so we can practice?
@monagh22553 жыл бұрын
Hi, Thank you for the amazing tutorial. Could we please access the data to work on it?
@dabiemaxwell47003 жыл бұрын
Pseeew!! Look at the voice
@DeepeshSinghAndroid3 жыл бұрын
This is definitely one of the best tutorial videos I ever watched. I would request to publish more such videos. One thought Hans, the "Year" variable you were putting in the Regression, I might avoid it. "Year" is not a continuous variable and might give a wrong interpretation.
@daudipallangyo75653 жыл бұрын
Cool love it
@LuisRomaUSA3 жыл бұрын
I think the only missing step would be to apply clustered errors to account for serial correlation between observations from before and after treatment.
@enish273 жыл бұрын
Thanks for the clip. I wonder if you can provide full code along with the link to the file! :)
@JoelPrinceVarghese3 жыл бұрын
If I have a low R2 value but my interaction term is significant, can I still consider it to be valid?
@cranewang33263 жыл бұрын
This video is so amazingly useful. sir, I am currently doing research about the influence of the profitability changes of US insurance companies over the covid-19 and I want to use your DID analysis method but I can't find it in your GitHub channel. It would be so kind if it can be shared. Thank you so much!!
@HansOlavMelberg3 жыл бұрын
Thank you!
@alexandrerosenberg80673 жыл бұрын
Maravilha!
@suenandrew19704 жыл бұрын
Thanks. How can i get a video file? By following your code, I can only get a html file.
@HansOlavMelberg4 жыл бұрын
There is no option for a video file, but it can be done by recording the screen when playing the html version.
@bhavyaramakrishnan8014 жыл бұрын
How do you visualize it?
@L3n3Lene4 жыл бұрын
Stop dragging Hans in the comments at least he tried. You are just mad that you don't understand microeconomics
@wobbel44874 жыл бұрын
Thank you
@valdemarpultz92784 жыл бұрын
great !
@nemathassnain85224 жыл бұрын
silent video
@Septumsempra88184 жыл бұрын
Which text book do you use?
@HansOlavMelberg4 жыл бұрын
Handbook of Health Economics, chapter 9.
@Amouseketeer5 жыл бұрын
I have gone through all 4 of your videos on causal inference and I just want to say that they were the best and most well-explained videos on these concepts that I have found. Many thanks for your hard work and dedication to the subject. Even though the views are low now, future statistics students will undoubtedly appreciate your help. Hope you will have more time in the future to continue with this series. All the best!
@HansOlavMelberg5 жыл бұрын
Thank you and good luck!
@Amouseketeer5 жыл бұрын
@@HansOlavMelberg If it's not too much trouble, can you share a bit on what books you would recommend to learn further about the subject? We are using Counterfactuals and Causal Inference by Stephen Morgan and Christopher Winship but the text doesn't have the same level of clarity and intuition as what you explained in your videos, especially regarding assumptions and how to overcome problems. Thank you and have a great day!
@ahmadhibrahimmohamedazhar8195 жыл бұрын
Thanks a lot
@gumballwaderson42605 жыл бұрын
U hv a sleepy voice
@HansOlavMelberg5 жыл бұрын
Agree! I must have been tired.
@javadkhalilarjmandi39065 жыл бұрын
perfect tnx
@vickirosstudor4906 жыл бұрын
You might as well have been talking Hebrew, I understood nothing. BTW - Whose idea was it to come up with imaginary numbers? Why is math so god awfully complicated?
@HansOlavMelberg6 жыл бұрын
Sorry, my Hebrew is no good. I could do it in Norwegian but that might not help you much! Imaginary numbers is based on ideas from Leonhard Euler and Carl Friedrich Gauss, but the name is more complicated than it is. It is just a symbol like a decimal symbol or a minus sign. A symbol we use instead of writing square root of minus one. Like an abbreviation.
@vickirosstudor4906 жыл бұрын
Thank you for clarifying
@youstron6 жыл бұрын
Excellent explanation. (First time commenting on youtube)
@HansOlavMelberg6 жыл бұрын
Thank you!
@SiddharajJunnarkar6 жыл бұрын
Where can i get access to these datasets
@azogun6 жыл бұрын
This is, by far, the simplest and best explanation I have seen. Brilliant!
@HansOlavMelberg6 жыл бұрын
Thank you!
@Dennis-qz7md6 жыл бұрын
Could you tell me of any other general models of human capital investments that I could have a look at
@HansOlavMelberg6 жыл бұрын
There are some models of human capital investment, for instance in education, but I am no expert in these models.
@lauratorres43956 жыл бұрын
What about using reference prices in business such as Amazon?
@HansOlavMelberg6 жыл бұрын
Reference pricing is most relevant when the government is the single major buyer of something (like pharmaceuticals), and there is little information about the cost (including cost of research) and - finally - thre is a need for a system to prevent costly and long negotiations. It is, however, not the only possible system. One could try value based pricing or some other systems also. As for Amazon, they are in the business of selling, but so much buying. Also the market for most of their product is competitive and there is less uncertainty.
@lauratorres43956 жыл бұрын
Hans Olav Melberg Thank you so much! :)
@MrAaronvee7 жыл бұрын
M.Melberg: surely the Saari geometrical method shows that 'intensity' is irrelevant - anybody anywhere within a given preference domain 'weighs' the same.
@HansOlavMelberg7 жыл бұрын
Good point. I was not aware of Saari's papers. So let me reformulate: Allowing people to express the (true) intensity of their preferences in a voting system will reduce the probability of the paradox being a empirical problem (i.e. how often it is lilkely to happen), but it does not solve the logical problem: A voting system (under the assumptions presented) may still produce several winners i.e. alternatives with the same number of "instensity" votes. And if we also take into account the incentive to present false preference intensitites, the problem becomes even worse.
@MrAaronvee7 жыл бұрын
Saari is probably the most prolific and accessible writer on voting problems (he is also a leading expert on the three-body problem of celestial mechanics). I think that he has written about the effect of strategic/dishonest voting. In general, though, do you think that there is a 'conspiracy of silence' concerning these problems ... or is it just the 'math phobia' of the 'man-in-the-street' which causes the problems to be unknown to most of the population?
@HansOlavMelberg7 жыл бұрын
Mainly math phobia and other causes. I do not think there is a conspiracy of silence about these topics.
@MrAaronvee7 жыл бұрын
No, it would be a very strange conspiracy ... given the huge amount of freely available information. And would the general population care anyway? The records of the British government show that even its members rarely discuss voting problems!
@HIGHzONzLIFE7 жыл бұрын
can't really hear you ...
@nasko77 жыл бұрын
increase your volume
@bright76267 жыл бұрын
Thanks Man. Nice lesson
@jacksonmckenzie21728 жыл бұрын
Great video!!! I'm studying the pension system in Chile and this was very valuable background information.
@HansOlavMelberg8 жыл бұрын
Thanks!
@kenoguitar417 жыл бұрын
Same here! hahahaha
@Fahumsixtysix8 жыл бұрын
I think this is a very simple yet good explanation of Arrow's Theorem.
@mangsyn63078 жыл бұрын
Thank you. Exactly what I hoped to find!
@bradley52108 жыл бұрын
Don't use dark blue on black. It's hard to read. And get a better mic.
@HansOlavMelberg8 жыл бұрын
+Brad Ley Yes, done. Thanks!
@EranM8 жыл бұрын
when teaching, and writing on a "blackboard" dont use shortcuts.
@elizabethc98438 жыл бұрын
Thanks! MSc health economics exam tomorrow just revising - good and simplified explanation!!! Thanks
@JJ-fb2lp8 жыл бұрын
solution seems like not a good soltuion
@seanmacfitzy8 жыл бұрын
I couldn't understand this theorem from reading about it, you explained the four conditions very well, thank you !!!
@MarwaAtefEid9 жыл бұрын
thanks :)
@ancelingaee37389 жыл бұрын
wish you were around to help me with this health economics assignment.....aaaargh !! but thanks anhyway :-)
@AjlaSarajevo9 жыл бұрын
thank you :-)
@AduragbemiBankeThomas9 жыл бұрын
Hans Olav. Fantastic video and simplified explanation!! Bookmarked And will be coming back to this often. Will share with some of my students too. Thank you for sharing.
@memeuna9 жыл бұрын
single peak is similar to the intensity...isin't it ?
@HansOlavMelberg9 жыл бұрын
Intensity is about how strongly you want something. For instance that you want a pool much, much more than library. Single peaked means that there is a natural order. For instance, the bigger the pool the more happy you become. Sometimes, our preferences have this structure, but it is not a logical necessity. And when the preferences do not have this structure, it is more likely that we can get into situations with no unique and stable winner from a voting process.
@memeuna9 жыл бұрын
Hans Olav Melberg I understand it now.Thank you so much.