The national non-domestic rate was introduced in 1990 to replace a system of locally varying business rates which had lasted for almost four centuries. Five years after the 1990 reforms, this report evaluates the operation of the present system and discusses various options for reform.

<Para ID="Par1">This paper introduces three novel techniques for updating the invertible representation of the basis matrix when solving practical sparse linear programming problems using a high performance implementation of the dual revised simplex method, being of particular value when suboptimization is...</para>

We present a parallelization of the revised simplex method for large extensive forms of two-stage stochastic linear programming (LP) problems. These problems have been considered too large to solve with the simplex method; instead, decomposition approaches based on Benders decomposition or, more...