Job search models typically describe jobs in terms of wages without accounting for other characteristics, but empirical evidence suggests non-wage characteristics are an important determinant of job choice. For instance, workers in the NLSY79 report moving from a higher paying job to a lower paying job in 33% of voluntary job-tojob transitions. I estimate an equilibrium-based job search model t...

The Japanese Ministry of Health and Welfare has implemented a policy of paying physicians to explain the nature of the patient's medical condition and the treatment plan. We describe the precepts of this policy and examine ethical dimensions of this development. We question whether this policy will be sufficient to ensure patients will have the opportunity to become informed participants in med...

Humans are very sensitive to symmetry in visual patterns. Symmetry is detected and recognized very rapidly, and eye fixations are concentrated along the axis of symmetry or the symmetrical center of the patterns. This suggests that symmetry is a highly salient feature. Existing computational models of saliency, however, have mainly focused on contrast as a measure of saliency. These models do n...

Disease Management (DM) first appeared in the United States in the early 1990s. Since then its incorporation into health plans has increased dramatically, yet proof of its effectiveness in terms of quality improvement and cost reduction remains to be seen. The following review provides an exploratory analysis of the basic principles of DM, its evolution and differences from traditional managed ...

Autophagy (literally self-eating) has diverse cytoprotective functions but also is linked to programmed cell death (PCD). In this issue, Qu et al. (2007) analyze the role of autophagy in PCD during development. Unexpectedly they find that autophagy induces apoptotic cells to present a signal to ensure their clearance, which is crucial for mouse embryonic morphogenesis.

Casual observation suggests that Internet media firms sometimes allow consumers to pay to remove advertisements from a free advertisement-based product. In this paper I characterize when this business model is optimal and analyze its impact on advertising quantity and the distribution of surplus. The optimality of the business model depends on the relation between product quality, the annoyance...

In this paper, we introduce a system, Sentence Planning Using Description, which generates collocations within the paradigm of sentence planning. SPUD simultaneously constructs the semantics and syntax of a sentence using a Lexicalized Tree Adjoining Grammar (LTAG). This approach captures naturally and elegantly the interaction between pragmatic and syntactic constraints on descriptions in a se...