The study of learning in games encompasses two research lines: (1) explaining the aggregate stability of classes of games when players use inductive reasoning, and (2) explaining the learning rules used by actual players. We mix approaches by considering both stability and learning rules in...

A three-class game of redistribution without a pure strategy equilibrium is studied under a model of adaptive politicians. This model allows us to integrate one person - one vote models of redistribution with the models which emphasize political influence so as to study when different social...

In the present paper I introduce the revelation principle of bounded rationality. The principle states that any behavior that a model of bounded rationality exhibits can be implemented as the choice of an agent with preferences and beliefs consistent with Savage-Bayesian rationality. The...

Technological change at the firm level has commonly been modeled as random sampling from a fixed distribution o f possibilities. Such models, however, typically ignore empirically important aspects of the firm's search process, notably the observation that the present state of the firm guides...

The emergence of cooperation in Prisoner's Dilemma (PD) games is generally assumed to require repeated play (and strategies such as Tit-For-Tat, involving memory of previous interactions) or features ("tags") permitting cooperators and defectors to distinguish one another. In the Demographic...

The RNA folding map, understood as the relationship between sequences and secondary structures or shapes, exhibits robust statistical properties summarized by three notions: (1) the notion of a typical shape (that among all sequences of fixed length certain shapes are realized much more...

In the minds of the lay public, or even of scientists from unrelated fields, physics is mainly associated with extremes: big bangs and big bucks; the cosmic and the subnucleonic scales; matter in its most rarefied form such as single trapped atoms; or measurements of extraordinary precision to...

Shape space was proposed by Perelson and Oster 20 years ago as a conceptual formalism in which to represent antibody/antigen binding. It has since played a key role in computational immunology. Antigens and antibodies are thought of as points in an abstract "shape space" where coordinates of...

We study cellular automata where the state at each site is decided by a majority vote of the sites in its neighborhood. These are equivalent, for a restricted set of initial conditions, to non-zero probability transitions in single spin-flip dynamics of the Ising model at zero temperature. <p> We...</p>

Synthesis of random libraries of polynucleotide sequences has become a standard procedure of biotechnology; in combination with amplification methods such as the polymerase chain reaction (PCR) [1] this allows for selection experiments in which large pools of sequences are screened for a...