Reflections on last week, next weeks’ workshops, some ChatGPT links and my cats

Machine learning, plus a new empirical bayes workshop

I have been working on a few substacks on the history of diff in diff based on some patterns and some detective work. Mainly about me trying to understand why there was kind of “second wave” of diff in diff that started in 2011. I wasn’t able to figure it out but I have some new graphs at least plus it pushed me to go back further to find the first time…