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- Просмотров 641 991
Dr. Bob Wen (Stata, Economics, Econometrics)
США
Добавлен 27 июн 2015
Hi, I am Bob. Welcome to my RUclips channel! Here is the place to learn Stata commands in data analysis, estimation, graphics, and programming. I also share Econometrics and Economics videos. If it helps, please subscribe to my RUclips channel or become a supporter of the channel. You can also enroll in my free online courses on Alison. Thank you!
As a Ph.D. in Economics, my research interests are intergenerational studies, microeconomics, and applied econometrics. I have completed all Ph.D. courses with a GPA of 4.0. My paper "The Causal Effect of Growing Up in a Two-Parent Household on Child's Adult Earnings" won the Best Paper Award at Northeast Business and Economics Association (NBEA) 48th Annual Meeting.
www.youtube.com/@BobWenEcon
alison.com/course/introductory-stata-2023-graphics-and-data-visualization
大家好,我係Bob。歡迎光臨我嘅RUclips頻道!喺呢度你可以學會運用Stata進行數據分析,模型估計,作圖,以及編程。我仲會分享計量經濟學同經濟學短片。如果影片對你有幫助,請訂閱我嘅RUclips頻道,或者成為會員。你亦可以參加我喺Alison嘅免費網上課程。多謝!
As a Ph.D. in Economics, my research interests are intergenerational studies, microeconomics, and applied econometrics. I have completed all Ph.D. courses with a GPA of 4.0. My paper "The Causal Effect of Growing Up in a Two-Parent Household on Child's Adult Earnings" won the Best Paper Award at Northeast Business and Economics Association (NBEA) 48th Annual Meeting.
www.youtube.com/@BobWenEcon
alison.com/course/introductory-stata-2023-graphics-and-data-visualization
大家好,我係Bob。歡迎光臨我嘅RUclips頻道!喺呢度你可以學會運用Stata進行數據分析,模型估計,作圖,以及編程。我仲會分享計量經濟學同經濟學短片。如果影片對你有幫助,請訂閱我嘅RUclips頻道,或者成為會員。你亦可以參加我喺Alison嘅免費網上課程。多謝!
Видео
【Solutions to Econometric Analysis】Tutorial 8: Chapter 4 Estimating by Least Squares Exercises 10
Просмотров 118Месяц назад
Solutions to Econometric Analysis 8th Edition by Professor William Greene Chapter 4 Estimating Regression Models by Least Squares Exercise 10 Hi, I am Bob. Welcome back to the tutorial on the exercises and applications for the textbook Econometric Analysis 8th Edition by Professor William Greene. We will continue to find solutions to the exercises of Chapter 4, Estimating Regression Models by L...
【Mandarin國語】五分鐘計量經濟學(計量經濟學輔導)第二十四集:什麼是矩陣的基礎概念和特點?
Просмотров 166Месяц назад
大家好,我是Bob。歡迎觀看【五分鐘計量經濟學】。在這一集,我會介紹矩陣的基礎概念和特點,包括矩陣的轉置,逆矩陣,Trace,Determinant,和特徵根。 #國語 #普通話 #計量經濟學 #計量經濟學輔導 #矩陣 【我的免費視頻:】 【粵語Cantonese】現實生活中的經濟學: ruclips.net/p/PLVnZllyvIMyTlreRu86Msrwis-6f9Unze 【粵語Cantonese】微觀經濟學基礎: ruclips.net/p/PLVnZllyvIMyQg_qgMedWyR1_OXvkw6SAL 【粵語Cantonese】五分鐘計量經濟學(計量經濟學輔導): ruclips.net/p/PLVnZllyvIMyQPhDLyiPECG1VfQoL8i3uq 【國語Mandarin】現實生活中的經濟學: ruclips.net/p/PLVnZllyvIMyRib...
【Cantonese粵語】五分鐘計量經濟學(計量經濟學輔導)第二十四集:乜嘢係矩陣嘅基礎概念同特點?
Просмотров 57Месяц назад
00:00 矩陣 03:15 方矩陣,對稱矩陣,等冪矩陣 06:55 矩陣Trace 08:21 矩陣Determinant 08:44 逆矩陣 10:51 矩陣特徵根 大家好,我係Bob。歡迎收睇【五分鐘計量經濟學】。喺呢一集我會介紹矩陣嘅基礎概念同特點。 #粵語 #矩陣 #計量經濟學 #計量經濟學輔導 【我嘅免費影片:】 【粵語Cantonese】現實生活中的經濟學: ruclips.net/p/PLVnZllyvIMyTlreRu86Msrwis-6f9Unze 【粵語Cantonese】微觀經濟學基礎: ruclips.net/p/PLVnZllyvIMyQg_qgMedWyR1_OXvkw6SAL 【粵語Cantonese】五分鐘計量經濟學(計量經濟學輔導): ruclips.net/p/PLVnZllyvIMyQPhDLyiPECG1VfQoL8i3uq 【國語Manda...
What are Basic Matrix Concepts and Properties? | Econometric Tutorial | Five Minute Econometrics 24
Просмотров 85Месяц назад
00:00 Matrix transpose 02:57 Square matrix, symmetric matrix, idempotent matrix 06:49 Matrix trace 08:17 Determinant of a matrix 08:39 Matrix inverse 10:46 Eigenvalues 【Five Minute Econometrics】(Econometric Tutorial) Topic 24: What are the Basic Matrix Concepts and Properties? Hi, I am Bob. Welcome back to the econometric tutorial on basic concepts and theories. In econometric analysis, we ofte...
【Solutions to Econometric Analysis】Tutorial 8: Chapter 4 Estimating by Least Squares Exercises 7-9
Просмотров 602 месяца назад
Solutions to Econometric Analysis 8th Edition by Professor William Greene Chapter 4 Estimating Regression Models by Least Squares 00:00 Exercise 7 05:01 Exercise 8 09:26 Exercise 9 Hi, I am Bob. Welcome back to the tutorial on the exercises and applications of each chapter of the textbook Econometric Analysis 8th Edition by Professor William Greene. We will find solutions to the exercises for C...
【Solutions to Econometric Analysis】Tutorial 7: Chapter 4 Estimating by Least Squares Exercises 5-6
Просмотров 452 месяца назад
00:00 Exercise 5 05:26 Exercise 6 Hi, I am Bob. Welcome back to the tutorial on the exercises and applications for the textbook Econometric Analysis 8th Edition by Professor William Greene. Today, I will continue solving the exercise for Chapter 4 of Estimating Regression Model by Least Squares. #EconometricAnalysis #Solution #Tutorial #Exercises #Chapter4 #LeastSquares #Answer #Greene 【Free Co...
【Solutions to Econometric Analysis】Tutorial 6: Chapter 4 Estimating by Least Squares Exercises 1-4
Просмотров 782 месяца назад
00:00 Exercise 1 02:50 Exercise 2 06:08 Exercise 3 08:26 Exercise 4 Hi, I am Bob. Welcome back to the tutorial on exercises and applications for the textbook Econometric Analysis 8th Edition by Professor William Greene. Today, we will find answers to exercises 1 to 4 at the end of Chapter 4, Estimating the Regression Model by Least Squares. #EconometricAnalysis #Solution #Tutorial #Exercises #C...
【Solutions to Econometric Analysis】Tutorial 5: Chapter 3 Least Squares Regression Application
Просмотров 702 месяца назад
Hi, I am Bob. Welcome to the tutorial on the exercises and applications for the textbook Econometric Analysis 8th Edition by Professor William Greene. Today, we will solve the application at the end of chapter 3 of Least Squares Regression. It is about partial regression. We will find answers using matrix algebra in Stata and compare the results with those using the regress command. Please down...
【Solutions to Econometric Analysis】Tutorial 4: Chapter 3 Least Squares Regression Exercises 10-13
Просмотров 532 месяца назад
00:00 Exercise 10 04:03 Exercise 11 07:25 Exercise 12 08:32 Exercise 13 Hi, I am Bob. Welcome back to my solutions to the textbook Econometric Analysis 8th Edition by Professor William Greene. Today, we will do the exercises from 10 to 13. The data file for this tutorial: drive.google.com/file/d/1mkFKxExjhRYWb-auui1yjZqEuqnewDkE/view?usp=sharing #EconometricAnalysis #Solution #Tutorial #Exercis...
【Solutions to Econometric Analysis】Tutorial 3: Chapter 3 Least Squares Regression Exercises 7-9
Просмотров 712 месяца назад
00:00 Exercise 7 03:24 Exercise 8 06:04 Exercise 9 Hi, I am Bob. Welcome to the tutorial on the exercises and application for the textbook Econometric Analysis 8th Edition by Professor William Greene. Today, we will solve exercises 7 to 9 at the end of Chapter 3, Least Squares Regression. Real-life examples in Stata are also provided to help you better understand the tutorial. The dataset for t...
【Solutions to Econometric Analysis】Tutorial 2: Chapter 3 Least Squares Regression Exercises 5-6
Просмотров 682 месяца назад
00:00 Exercise 5 07:22 Exercise 6 Hi, I am Bob. Welcome back to my solutions to Econometric Analysis, a tutorial on the exercises and applications for the textbook Econometric Analysis 8th edition by Professor William Greene. In addition to providing my answers to the problems step by step, I will verify the results with real-life examples or simulated data in Stata. Today, we will continue sol...
【Mandarin國語】五分鐘計量經濟學(計量經濟學輔導)第二十三集:多元變量模型OLS估計量什麼時候跟部分模型OLS估計量相同?
Просмотров 742 месяца назад
大家好,我是Bob。歡迎觀看【五分鐘計量經濟學】。在這一集,我會介紹多元變量模型OLS估計量在什麼條件下跟部分模型OLS估計量相同。 #國語 #正交部分迴歸定義 #計量經濟學 #計量經濟學輔導 有聯繫的視頻: 如何推導OLS估計量? ruclips.net/video/Xldtj-eas0I/видео.html 什麼是投影矩陣和殘差生成矩陣? ruclips.net/video/kgM5cFltUZ0/видео.html 【我的免費視頻:】 【粵語Cantonese】現實生活中的經濟學: ruclips.net/p/PLVnZllyvIMyTlreRu86Msrwis-6f9Unze 【粵語Cantonese】微觀經濟學基礎: ruclips.net/p/PLVnZllyvIMyQg_qgMedWyR1_OXvkw6SAL 【粵語Cantonese】五分鐘計量經濟學(計量經濟學輔...
【Cantonese粵語】五分鐘計量經濟學(計量經濟學輔導)第二十三集:多解釋變量模型OLS估計量何時同其部分模型估計量相同?
Просмотров 412 месяца назад
【Cantonese粵語】五分鐘計量經濟學(計量經濟學輔導)第二十三集:多解釋變量模型OLS估計量何時同其部分模型估計量相同?
When will Coefficients from Multiple Regression be the Same as Partitioned Regression? Econometric23
Просмотров 682 месяца назад
When will Coefficients from Multiple Regression be the Same as Partitioned Regression? Econometric23
【Solutions to Econometric Analysis】Tutorial 1: Chapter 3 Least Squares Regression Exercises 1-4
Просмотров 1782 месяца назад
【Solutions to Econometric Analysis】Tutorial 1: Chapter 3 Least Squares Regression Exercises 1-4
Frankenmuth Ballon Festival 2024 | Michigan
Просмотров 592 месяца назад
Frankenmuth Ballon Festival 2024 | Michigan
【Mandarin國語】五分鐘計量經濟學(計量經濟學輔導)第二十二集:如何推導OLS估計量(使用代數和矩陣)?
Просмотров 492 месяца назад
【Mandarin國語】五分鐘計量經濟學(計量經濟學輔導)第二十二集:如何推導OLS估計量(使用代數和矩陣)?
【Cantonese粵語】五分鐘計量經濟學(計量經濟學輔導)第二十二集:點樣推導OLS估計量(使用代數同矩陣)?
Просмотров 372 месяца назад
【Cantonese粵語】五分鐘計量經濟學(計量經濟學輔導)第二十二集:點樣推導OLS估計量(使用代數同矩陣)?
How Do We Solve for the OLS Estimator Using Algebra and Matrix? | Econometric Tutorial | Topic 22
Просмотров 412 месяца назад
How Do We Solve for the OLS Estimator Using Algebra and Matrix? | Econometric Tutorial | Topic 22
【Mandarin國語】五分鐘計量經濟學(計量經濟學輔導)第二十一集:如何推導矩陣形式的OLS估計量?什麼是投影矩陣和殘差生成矩陣?
Просмотров 1602 месяца назад
【Mandarin國語】五分鐘計量經濟學(計量經濟學輔導)第二十一集:如何推導矩陣形式的OLS估計量?什麼是投影矩陣和殘差生成矩陣?
【Cantonese粵語】五分鐘計量經濟學(計量經濟學輔導)第二十一集:點樣推導矩陣形式OLS估計量?乜嘢係投影矩陣同殘差生成矩陣?
Просмотров 1872 месяца назад
【Cantonese粵語】五分鐘計量經濟學(計量經濟學輔導)第二十一集:點樣推導矩陣形式OLS估計量?乜嘢係投影矩陣同殘差生成矩陣?
How to Derive OLS Estimator in Matrix Form and What are Projection and Residual Maker Matrixes?
Просмотров 2332 месяца назад
How to Derive OLS Estimator in Matrix Form and What are Projection and Residual Maker Matrixes?
【Mandarin國語】五分鐘計量經濟學(計量經濟學輔導)第二十集:什麼是迴歸模型的矩陣表達形式?
Просмотров 452 месяца назад
【Mandarin國語】五分鐘計量經濟學(計量經濟學輔導)第二十集:什麼是迴歸模型的矩陣表達形式?
【Cantonese粵語】五分鐘計量經濟學(計量經濟學輔導)第二十集:乜嘢係內生解釋變量同外生解釋變量?
Просмотров 522 месяца назад
【Cantonese粵語】五分鐘計量經濟學(計量經濟學輔導)第二十集:乜嘢係內生解釋變量同外生解釋變量?
What is the Matrix Form of Regression Models? | Five Minute Econometrics | Tutorial | Topic 20
Просмотров 603 месяца назад
What is the Matrix Form of Regression Models? | Five Minute Econometrics | Tutorial | Topic 20
You are a very good teacher, Bob Wen. I failed to follow ALL THE OTHER videos because the speakers were too fast (who speaks so quickly, teaching? How can one learn? The y have to put themselves in the learner's shoes.) But you, Bob, are so good. Keep it up!!!!
Thanks, helped me a lot to generate my output!
Waw🎉is WONDERFUL !
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❤❤❤❤❤❤❤❤❤❤❤❤
ชอบคุณสำหรับอิสระที่คุณให้ผม😊
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ขอบคุณครับ ถ้าไม่มีคุณ ผมคงจะไม่จบศฐ.
ขอบคุณท่านผู้เจริญซึ่งมากไปด้วยปัญญ่😊😊
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Thank you so much.
Thank you
Great explanation, thank you!
you're amazing Bob! Love from Italy
great video love u bob xoxo
Thank you my friend <3 <3
Thanks for your help
Thank you Dr Bob youre a goat
Thank you for your teaching videos. They are very helpful. I was wondering if you have a video on how to combined more than one observations into one single observation in stata. To be clear, let us assume this scenario on disability types: 1- Difficulty in seeing : Yes = 1, No = 0 2- Difficulty in walking : Yes = 1, No = 0 3- Difficulty in speaking: Yes = 1, No = 0 4- Difficulty in hearing : Yes = 1, No = 0 Then we want to combine all these 4 observations into one single observation. This single observation can be named Persons with disability ( Yes: 1, No:0), Any guidance will be appreciated.
generate disability=0 replace disability=1 if diff_see==1 | diff_wal==1 | diff_spe==1 | diff_hea==1
Inflation increases the price of goods and services. Thank you.
Trade reduces opportunity costs; I like this expression! Thank you.
Inflation and unemployment are pushed in opposite directions. Thank you.
Externalities of the human primate show what we as a species cannot achieve without the externality. If there is an educational resource then we can learn; In so far as the externality is needed as a resource for that learning, we cannot learn without it. I mention the primacy of the human, as it is necessary to the recognition of externality, in so far as the fact of animal nature supplies information that there is a physical certainty to this approach.
Decentralized decisions are interesting.
That is a huge gap.
It's pure gold to provide solutions to Greene Econometric Analysis. Thanks a lot professor
Incentives are needed for organizational behaviour.
The margin is a long-term gain, so the money is important to rationalize; the utility cost margin is a great analysis idea to ensure the cost is lower than the increased gain.
Opportunity cost is a form of self-actualization in so far as acknowledging the costs can result in better management of opportunity. I am not vegan because I ate a Snickers/Mars bar, so my opportunity cost is I was not vegan many years ago; this is my gain as I am a carnivore diet person.
多謝獲得知識
Thank you. May I ask what the regression model of this data is? And where is this data sourced from?
Hi, I don't remember whether I collected the data from CPS or PSID many years ago.
great video bob!
thank you bob !
teacher, may i ask why q = 2 in 6(ii) ? And why do we search F-value at 2 and 86?
The q is the number of restrictions. There are two restrictions.
The numerator degree is 2, and the denominator degree is the unrestricted model’s degree of freedom.
mr bob wen!
Dr. Bob Wen !!
danke bob wen!
Thank you so much for this explanation!
You articulate concepts so clearly! This is so helpful for my revision, thank you
Hii, have you got any practise exam papers?
thank you bob marleys <3
Bob the the man Bro if I'm ever at Clemson university ill Kiss you
Hi there, your videos are very useful. I was wondering if you can help me and my friend to solve some econometric questions.
wow thank u so much Bob! u r the best!
u r welcome bob pookie 🥰😘😋
Hello Dr. Bob, could you please explain the situation where the Parallel trends assumption can be identified to have been violated in the model?
Suppose the policy took effect in time t. If you can find different trends during t-2 and t-1 for the two groups, it is evidence that the parallel trends assumption is not valid.
That’s fine I get that. Thank you so much ❤
Bob is a living legend. Thank you!
Hi men
Aren't you the man that saved 2 children from drowning?
Thank you for this explanation and insights into the DID. Please, are you able to share with me your Do File?
Please see the description. For the regression, it is: regress divorced i.treatment##i.after fam_inc num_chi
If only I had found your videos earlier from the start of my econometrics class 😭. youre a hero for this series sir😭. thanks from indonesia