Narrated Lecture Slides for an introduction to the concept of Heteroskedasticity in a simple OLS model.
Roughly follows chapter 10 of the Studenmund textbook, and/or Ch. 8 of the Wooldridge intro book.

Link to Part 2:    • Heteroskedasticity Part 2 - Introduct...  
Link to tutorial on White Test:    • Stata Tutorial: White Test for Hetero...  

Link to Jeffrey Wooldridge Introductory Econometrics Textbook:
https://www.amazon.com/gp/product/813...

Link to the excellent Introduction to Econometrics Textbook by AH Studenmund:
https://www.amazon.com/gp/product/933...

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