Contra Sample Splitting

Marek Kirejczyk discussed a negative trend in software development called Hype Driven Development. I’m here to argue the same thing happens in data, econometrics, and academia. I’ll give two examples: the p-value and sample splitting. My real focus here is to convince the reader that sample splitting is a trendy trick but it is in … Read more Contra Sample Splitting

Hal Varian Makes Sense of NoSQL

The sexy new thing in IT is apparently NoSQL, but I can’t stand the stuff. I tried Couch and Mongo but I didn’t like it for reasons I’ll discuss in this article. More important than my opinion, though, is Hal Varian’s opinion. I was glad to see him reinforce my priors. In Big Data: New … Read more Hal Varian Makes Sense of NoSQL