We give complete algorithms and source code for constructing (multilevel) statistical industry classifications, including methods for fixing the number of clusters at each level (and the number of levels). Under the hood there are clustering algorithms (e.g., k-means). However, what should we...

This publication compares key aspects of statistical methodologies used by OECD member countries in the compilation of industry, retail and construction indicators. It focuses on data comparability in the context of international statistical guidelines and recommendations published by the OECD...