The design of a supply chain has been considered by many practitioners and researchers recently. One model that is used to optimize distribution from a single facility (depot) to a set of retailers over a given planning horizon and considering stock management decisions is known as Inventory Routing Problem (IRP). This model tries to optimize the trade-off between inventory and transportation c...

Stability is a global property of a system. It is concerned with the behaviour of whole systems over indefinitely long periods of time, for all admissible inputs and uncertainties. Stability and instability are ultimately topological properties. They depend on the topology of the space defined by the equations that govern the system. It follows that that instability is not linear. It is possibl...

We consider a synchronized queueing system in which customers arrive according to a Poisson process to a station consisting of c parallel servers, each with its own queue. Upon arrival, customers split into parts and each part joins the corresponding queue. Under the assumption that the service requirements of the c parts of each customer are strongly ordered we obtain the joint distribution of...

This paper aims to measure poverty dynamics in Vietnam using the most recent Vietnam Household Living Standard Survey (VHLSS) from 2010. Since there are no panel data between the 2010 VHLSS and the previous studies, this study uses the asset approach to estimate the proportion of structurally and stochastically poor. It is found that the proportion of structurally and stochastically poor is 11....

In various application areas, prior information is available about the direction of the effects of multiple predictors on the conditional response distribution. For example, in epidemiology studies of potentially adverse exposures and continuous health responses, one can typically assume a priori that increasing the level of an exposure does not lead to an improvement in the health response. Su...