Indonesia missing due to lack of information on formality status, urban China missing due to limited sample size, the analysis on India is confined to all workers for whom data on social security contributions is available (this effectively excludes self-employed workers and family workers). Panel B: OECD calculations based on national household and labour force surveys and the EU-SILC national files (Turkey). On the measurement of inequality", Journal of Economic Theory, Elsevier, vol. The role of constraint vs choice”, Annals of Economics and Statistics, forthcoming.