This paper focuses on econometrics pedagogy. It demonstrates the importance of including probability weights in regression analysis using data from surveys that do not use simple random samples (SRS). We use concrete, numerical examples and simulation to show how to effectively teach this...

Using micro-level data on attorney incomes in 2004, we reconstruct the industrial organization of the Japanese legal services industry. These data suggest a somewhat bifurcated bar, with two sources of unusually high income: talent in Tokyo, and scarcity elsewhere. The most talented would-be...