-invest decision is developed under these assumptions. The mode1 shows that firms may refuse to issue stock, and therefore may pass up valuable investment opportunities. The model suggests explanations for several aspects of corporate financing behavior, including the tendency to rely on internal sources of funds

coordination and despite the fact that each agent's set of nearest neighbors change with time as the system evolves. This paper provides a theoretical explanation for this observed behavior. In addition, convergence results are derived for several other similarly inspired models.

T he "productivity paradox" of information systems (IS) is that, despite enormous improvements in the underlying technology, the benefits of IS spending have not been found in aggregate output statistics.One explanation is that IS spending may lead to increases in product quality

matter halos and the anisotropy of ultra-high energy cosmic rays

The simple Bayesian classifier (SBC) is commonly thought to assume that attributes are independent given the class, but this is apparently contradicted by the surprisingly good performance it exhibits in many domains that contain clear attribute dependences. No explanation for this has been

-process accounts, this model is not limited to specific domains of mental functioning and attempts to integrate cognitive, motivational, and behavioral mechanisms. In the history of attempts to discover the causes of human behavior, the most widespread explanations are based on the assumption that human beings do

several unexpected trends in routing instability, and examine a number of anomalies and pathologies observed in the exchange of inter-domain routing information. The analysis in this paper is based on data collected from BGP routing messages generated by border routers at five of the Internet core

explanations. A specialisation of this method for each of the main subprocesses of case-based reasoning is presented, and illustrated with examples. 1 Introduction A growing part of the AI community is concerned with approaches that integrate several types of knowledge and reasoning methods (see

post mean-variance efficient frontier. Several intuitive interpretations of the test are provided, including a simple mean-stan-dard deviation geometric explanation. A univariate test, equivalent to our multivariate-based method, is derived, and it suggests some useful diagnostic tools which may

rather than part shapes, that the rule exploits a uniformity of nature -- transversality, and that parts with. their descriptions and spatial relations provide a first index into a memory of shapes. These rules lead to a more comprehensive explanation of several visual illusions. The role of inductive