Climate stabilization requires low GHG emissions. Is this consistent with nondecreasing human welfare? Our welfare index, called quality of life (QuoL), emphasizes education, knowledge, and the environment. We calibrate a multigenerational model with education, physical capital, knowledge and...

Let there be a positive (exogenous) probability that, at each date, the human species will disappear. We postulate an Ethical Observer (EO) who maximizes intertemporal welfare under this uncertainty, with expected-utility preferences. Various social welfare criteria entail alternative von...

Sustainability has been largely replaced by discounted utilitarianism in contemporary climate-change economics. Our approach rejuvenates sustainability by expanding the conception of the quality of life, along the lines of the UN Human Development Reports, to include not only consumption, but...

An in-kind subsidy is equivalent, both theoretically and empirically, to an increase of income for an individual consumer. But the equivalence does not empirically carry over to in-kind grants by a central government to a local one: this has been seen as an anomaly and dubbed the “flypaper...

The Downsian model, in which candidates care only about winning elections and parties play no role, has been hegemonic in formal political theory for forty years. In the past fifteen years, various authors have worked with a model of electoral competition in which competing parties represent...

Consider electoral competition between two candidates, in which there is a single-dimensional issue space. The simplest way to get the result that, in Nash equilibrium, candidates propose different policies, is to assume that (1) candidates are uncertain about the distribution of voter...

Under dictatorship, trade unions and strikes are illegal, and so wages are low and employment is full. Under democracy, there are two institutional innovations: trade unions, which can keep the wage about the Walrasian level, and the citizen franchise, by which citizens may vote transfer...

This paper surveys the evidence, theoretical and empirical, relating to the possibility of achieving more egalitarian distributions of income than are typical in modern societies. The first four parts of the paper (Introduction, Improving efficiency an equality, The ownership of firms, and...

Why do both left and right political parties typically 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...

Why did socialists win elections in some countries in Europe, and fascists in others, during the interwar period? Many political historians have viewed 'distributive class politics' as the appropriate characterization of this period and place, but heretofore, formal politico-economic analysis...