This paper builds a new microdatabase that covers 100 countries at all income levels and long-run time series in the United States (1870–2010) Mexico ( 1960–2010) to document how modern tax system arises over development. I establish set of stylized facts, which show exemption threshold decreases distribution as country develops, tracking growth employee share employment occurs gradually furthe...

We have previously shown that a higher burden of CD14+HLA-DR cells in the peripheral blood of cancer patients is associated with systemic immune suppression and a poor outcome. We have also reported that CD14+ cells isolated from healthy donors are converted to the immunosuppressive CD14+HLA-DR phenotype when cocultured with tumor cell lines or primary tumor cultures. Therefore, one potential m...

We study the interaction between monetary and fiscal policies in a Ramsey-Sidrauski model augmented with environmental capital. Equilibrium solutions are studied through “Green Golden Rule”. Despite non-separability of money utility intertemporally non-separable preferences, is environmentally neutral. Policy impacts environment via marginal rate transformation rather than substitution consumpt...

US federal transfers to individuals are large, countercyclical, vary geographically, and often credited with helping stabilize regional economies. This paper estimates the short-run effects of these using plausibly exogenous variation in temporary stimulus payments permanent Social Security benefit increases. States that received larger tended grow faster contemporaneously, a multiplier around ...

This paper studies a two-region model in which unemployment, education decisions and interregional migration are endogenous. The poorer region exhibits both lower wages and higher unemployment rates, and migrants to the richer region are disproportionally skilled. The brain drain from the poor to the rich region is accompanied by stronger incentives to acquire skills even for immobile workers. ...

We investigate a linear state di¤erential game describing an asymmetric Cournot duopoly with capacity accumulation à la Ramsey and a negative environmental externality (pollution), in which one of the …rms has adopted corporate social responsibility (CSR) in its statute, and therefore includes consumer surplus and the environmental e¤ects of production in its objective function. If the market i...

This paper studies the role of family size in the design of optimal income taxation. We consider a second best setting where the government observes the number of children and the income of the parents but not their productivity. With a linear tax schedule the marginal tax rate is shown to decrease with the number of children, while the relationship between the demogrant and family size appears...