We study the effect of immigration on world welfare. The world consists of two areas, South and North, the former populated by low-skill workers, and the latter by both low and high skill workers. A trade union in the North keeps the wage of low-skill workers above the Walrasian wage, generating...

The fall of Communism, the reassessment of Nordic social democracy, belt-tightening in other advanced welfare states, and the worldwide privatization wave have led many to conclude that egalitarianism is a merely utopian ideal, the possibility of whose realization is laid to rest by the failure...

The author studies the effect of immigration on world welfare. The world consists of two areas, South and North, the former populated by low-skill workers, and the latter by low- and high-skill workers. Immigrants from the South to the North have two effects in the North: a mixed native-foreign...

Why do both left and right political parties almost always propose progressive income taxation schemes in political competition? Analysis of this problem has been hindered by the two-dimensionality of the issue space. To give parties a choice over a domain which contains both progressive and...

A brief, historical review of the study of the interdependency between politics and economic distribution is offered. While the impact of economic interests on politics has been acknowledged for thousands of years, and the impact of politics on distribution for hundreds, it is only in the last...

We survey critically the brief history of modeling party competition in general elections, beginning with the Hotelling-Downs model with a unidimensional policy space, and the Wittman model with endogenous parties, to the multi-dimensional citizen-candidate and PUNE models. Some applications of...

In a citizen candidate equilibrium, there are n candidates each of whom announces a policy in a policy space of dimension d. Thus the policy equilibrium lives in a space of dimension nd. We show, in a canonical example, that the equilibrium manifold is generically of dimension nd. In particular,...