Dynamics of a simple balls and bins reinforcement process The following dynamics have been introduced by G. Yule in 1925 to model evolution of species and their repartition within different classes, or “genus”. We model a species as a ball which is contained in a bin that model its associated class or genus. Once a specied appear it is never removed and it does not change genus (i.e., once a ba...

AIT Bioscience, a bioanalytical CRO, implemented a highly configurable, Oracle-based electronic laboratory notebook (ELN) from IDBS called E-WorkBook Suite (EWBS). This ELN provides a high degree of connectivity with other databases, including Watson LIMS. Significant planning and training, along with considerable design effort and template validation for dozens of laboratory workflows were req...

The seminal work of Huggett [“The risk-free rate in heterogeneous-agent incomplete-insurance economies”, Journal of Economic Dynamics and Control, 1993, 17(5-6), 953-969] showed that in a stationary recursive equilibrium, there exists a unique stationary distribution of agent types. However, the question remains open if an equilibrium’s individual state space might turn out to be such that eith...

This paper describes three models arising from the theory of excitable media, whose primary visual feature are expanding rings of excitation. Rigorous mathematical results and experimental/computational issues are both addressed. We start with the much{studied Greenberg{ Hastings model (GHM) in which the rings are very short{lived, but they do have a transient percolation property. By contrast,...

I construct an equilibrium model of the labor market where workers and firms enter into dynamic contracts that can potentially last forever, but are subject to optimal terminations. Upon a termination, the firm hires a new worker, and the worker who is terminated receives a termination contract from the firm and is then free to go back to the labor market to seek new employment opportunities an...

Effective coordination is key to many situations that affect the well-being of two or more humans. Social coordination can be studied in coordination games between individuals located on networks of contacts. We study the behavior of humans in the laboratory when they play the Stag Hunt game - a game that has a risky but socially efficient equilibrium and an inefficient but safe equilibrium. We...

This paper considers information trading in fixed networks of economic agents who can only observe and trade with other agents with whom they are directly connected. We study the nature of price competition for information in this environment. The linear network, when the agents are located at the integer points of the real line, is a specific example I completely characterize. For the linear n...

In light of work by Donna Haraway, Jacques Derrida and Hélène Cixous, this paper weaves a poetic response to the Western ethnocentric mode thought as that which cuts once forever line dividing nature from culture. That elevates Man over all other creatures, indeed living things, does so means phallic imaginary deeply tied Judaeo-Christian ontotheology – shame, nudity original sin. Through figur...