The paper extends Lucas and Prescott’s (1974) search model to develop a notion of rest unemployment. The economy consists of a continuum of labor markets, each of which produces a heterogeneous good. There is a constant returns to scale production technology in each labor market, but labor productivity is continually hit by idiosyncratic shocks, inducing the costly reallocation of workers acros...

This paper describes a highly original and new approach to securing data on workstations (desktops and laptops) that has been implemented by Secure Systems Ltd, into a product called the Silicon Data Vault (SDV). Over the past twenty years, a variety of Security Policy Models (SPMs), and products that implement the various SPMs have attempted to address the security needs of users processing se...

Novel trends in Web services technology challenge the assumptions made by current standards for process-based service composition. Most RESTful Web service APIs, which do not rely on the Web service description language (WSDL), cannot easily be composed using the BPEL language. In this paper we propose a lightweight BPEL extension to natively support the composition of RESTful Web services usin...

This paper examines the impact of unions on unemployment and wages in a dynamic equilibrium search model. Unions impose a minimum wage on employers and ration jobs to ensure that their most senior members are employed. A minimum wage policy is optimal for a utilitarian union that cares equally about its employed and unemployed members. The combination of a minimum wage and rationing by seniorit...

In this essay I examine the formal structure of the concept of futility, enabling identification of the appropriate roles played by patient, professional, and society. I argue that the concept of futility does not justify unilateral decisions to forego life-sustaining medical treatment over patient or legitimate surrogate objection, even when futility is determined by a process or subject to et...

The REST protein helps to prevent the premature activation of genes that are only expressed in mature neurons, and is now found to protect the genome of neural progenitor cells.