Simple sum monetary aggregates are based on accounting conventions and have no aggregation theoretic foundations in economic theory. In contrast, Divisia monetary aggregates are directly derived from aggregation and index number theory. Credit card services cannot be included in simple sum...

Packing problems are a type of fundamental global optimization problem with many real-world applications. In this paper, we propose a new variant of three-dimensional (3D) packing problem, called the Single Cylindrical Packing Problem with Cylindrical Items (SCPP-CI), which involves packing as...

The rectangle packing area minimization problem is a key sub-problem of floorplanning in VLSI design. This problem places a set of axis aligned two-dimensional rectangular items of given sizes onto a rectangular plane such that no two items overlap and the area of the enveloping rectangle is...

Using quantile regression method, this paper made an empirical analysis on convergence of China’s regional economic growth since the reform and opening-up. It firstly introduced principle of quantile regression method and related theories of convergence of economic growth. Through...

The problem of packing equal spheres in a spherical container is a classic global optimization problem, which has attracted enormous studies in academia and found various applications in industry. This problem is computationally challenging, and many efforts focus on small-scale instances with...