In this paper, a framework for assessing the cost effectiveness of lean tools is developed. The framework consists of eight phases within the plan-do-check-act (PDCA) problem solving and continuous improvement cycle. The framework was verified using a case study of a sawmill process at a wood...

In this study, we use zero-one variables to control fixed transaction costs independent of trade size in the portfolio selection problem. The optimal solution to the maximum flow, risk constrained stochastic portfolio network is found using Digital Portfolio Theory (DPT). Digital signals...

In this study, we use zero-one variables to control fixed transaction costs independent of trade size in the portfolio selection problem. The optimal solution to the maximum flow, risk constrained stochastic portfolio network is found using Digital Portfolio Theory (DPT). Digital signals...