Why Rich People Are Unpredictable? Heteroscedasticity Explained

In this short video, I explain the concept of Heteroscedasticity in a simple and relatable way using a story of two friends — Ravi and Mohan. 👉 Ravi (low income) has limited choices → predictable consumption 👉 Mohan (high income) has many options → unpredictable consumption 💡 This leads to an important econometric insight: When income increases, uncertainty also increases — and error variance is no longer constant. ⚠️ That means: The Gauss-Markov assumption breaks OLS remains unbiased But it becomes inefficient 🎯 If you’ve ever struggled to understand heteroscedasticity, this will make it crystal clear! #Econometrics #Heteroscedasticity #Statistics #OLS #DataScience #Economics #LearningMadeEasy #YouTubeShorts #Education #UPSC #NETJRF If you found this helpful, don’t forget to 👍 Like, 🔁 Share, and 🔔 Follow for more simple econometrics explanations!