Venkatesh Rao@vgrWow this is one of the most effective visualizations of its sort I've seen.Quote TweetPatrick Collison@patrickc·Jul 25, 2016Replying to @patrickcTeases apart composition shifts, headwinds in particular sectors, and attempts to quantify various inefficiencies.3:18 PM · Jul 25, 20161 Retweet4 Likes