Illicit work, social security fraud, economic crime, and other shadow economy activities are fast becoming an international problem. This second edition uses new data to reassess currency demand and the model approach to estimate the size of the shadow economy in seventy-six developing, transition, and OECD countries. This updated edition argues that during the 2000s the average size of a shadow economy varied from 19% of GDP for OECD, to 30% for transition, and to 45% for developing countries"-- Provided by publisher