Honestly I feel like you have a lot more faith in businesses behaving efficiently[1] than I do. I think the normal reason for a firm to do things is random chan

Honestly I feel like you have a lot more faith in businesses behaving efficiently[1] than I do. I think the normal reason for a firm to do things is random chance/business school/copying competitors. See also: “algorithms” style interview questions, brain teaser style interview questions, and using complicated distributed tools like Hadoop. [1] by efficiency, I mean settling on doing the most effective things and dropping ineffective things.