Inspector Commissionaire Bill is back on the case today for Part 2 and the solution of the puzzle we posed in – Puzzle: Has real wages growth outstripped productivity growth or not? – Part 1 (November 20, 2019). The puzzle was relatively easy to understand. The RBA (Australia’s central bank) published analysis in its most recent – Statement on Monetary Policy (November 2019), which showed that since the early 2000s, real earnings per hour have been above hourly labour productivity. Yet, National accounts data and earnings-productivity data trends that I regularly publish show the opposite. So the puzzle is: How can the RBA say that workers enjoyed real wage increases above labour productivity growth in the early 2000s up to around 2012, when we know the wage share has been falling more or less over the entire period? In Part 1, we laid out the conceptual framework to help us understand what I am writing about today. The resolution is that both sides of the puzzle are correct in their own way. The issue comes down to measurement and this two-part series demonstrates, very powerfully, how perceptions that are shaped by the presentation of data (graph, tables, etc) rarely come to grips with the underlying methods used to construct the presentations. We have all heard the phrase – There are three kinds of lies: lies, damned lies, and statistics. By becoming more educated about how to use statistics, we can all break that nexus and deploy data more reasonably to advance our cases. That is what this two-part blog series is about.