Although oil windfalls have opened a window of opportunity for the Gulf States, at the same time they have created numerous problems. In particular, the uncertainty associated with periods of boom and bust in the oil market has made the formulation and implementation of sound fiscal policies a...

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We present a framework for the analysis of tax and benefit policy in countries with significant informality. Our framework allows us to jointly analyse the effects of various taxes and benefits on incentives for firms and workers to be informal and evade taxation. We find that payroll taxes and...

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