Three questions need to be addressed when discussing the global warming issue. First, is a reduction in carbon dioxide emissions necessary? Second, if the answer is yes, what is the optimal level of CO2 emissions? Third, who should be held responsible for reducing CO2 emissions? This book...

This note formulates a dynamic control model which optimizes a quadratic objective functional subject to linear constraints and solves in APL. Besides giving the optimal objective function value, the APL program computes values of the gain matrices, the Riccati equations, the state variables and...

I examine the incentives for software providers to design appropriate user interfaces. There are two sorts of costs involved when one uses software: the fixed cost of learning to use a piece of software and the variable cost of operating the software. I show that a monopoly provider of software...

Most studies on wage differentials have been conducted in the west. Few are made of the developing countries, where data on personnel profiles are generally found to be wanting. This study employs Borjas's technique to assess the effects of differences in country source education on gender wage...

In this paper, we describe a massively parallel implementation of the Splitting Equilibration Algorithm using CM FORTRAN on the Thinking Machines CM-2 system. Numerical results using upwards of 32 768 (32 K) processors on the CM-2 system, the Connection Machine, are presented for both...

This paper provides straightforward derivations of a wide variety of smoothing formulae which are associated with the Kalman filter. The smoothing operations are of perennial interest in the fields of communications engineering and signal processing. Recently they have begun to interest...

This paper summarizes the work on a user interface for an MRP II planning system which has been developed using artificial intelligence techniques as a support tool for the final user. Experiences with real applications show that the success of such a system depends on the flexibility and...