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α: calibrated so average coauthorship-adjusted count equals average raw count
Given a general utility and income distribution and positive unemployment benefits, we analyze the impact of a universal basic income (UBI) financed by an income tax and reducing unemployment benefits. With extensive margins only and identical fixed costs of work, we show that UBI can benefit a poor majority. Plausible conditions can ensure similar results with different fixed costs. With both extensive and intensive margins but identical fixed costs, a modest UBI can still benefit a poor majority provided the income weighted tax elasticity of labor supply from intensive margins is less than the non-employment rate, which is usually true.