In the framework of a Keynesian monetary macro model we study implications of a kinked Phillips-Curve and alternativemonetary policy rules. As alternative monetary policy rules we consider monetary growth targeting and interest rate targeting (the Taylor rule). Our monetary macro model exhibits: asset market clearing, disequilibrium in product and labor markets, sluggish price and quantity adju...

in this paper, we present a fractional mathematical model of a one-dimensional phase phase change problem (stefan problem) with latent heat a power function of position. this model includes space-time fractional derivatives in caputo sense and time dependent surface heat flux. an approximate solution of this model is obtained by optimal homotopy asymptotic method (oham) to find an approximate s...

The Vehicle Routing Problem (VRP) is a highly investigated logistics problem. VRP can model in-plant and out-plant material handling or whole supply chain. first article was published in 1959 by Dantzig Ramser, many varieties of have appeared since then. Transport systems are becoming more customized these days, so it necessary to develop general system that covers transport tasks. Based on the...

bin size is one of the fundamental and key parameters in 3d land seismic operation design and has an important role in the determination and calculation of other design parameters. therefore, optimization of this parameter is vital. in this study a new method for optimization of the bin size has been used. the optimization algorithm is linear and based on a mathematical model. due to the relati...

abstractaccidents and natural disasters and crises coming out of them indicate the importance of an integrated planning to reduce their effected. therefore, disaster relief logistics is one of the main activities in disaster management. in this paper, we study the response phase of the disaster management cycle and a bi-objective model has been developed for relief chain logistic in uncertainty...

Occurrence of chaotic behaviors because of fluctuations creation and their intensified transfer along the chain is one of the main causes of inefficiency of Material Requirements Planning (MRP) based supply chains. One of the reasons of the inefficiency is the lumpiness phenomenon. Through this phenomenon, some parts have an irregular production schedule, with nothing produced in some periods a...

This paper documents some stylized facts on evolving UK Phillips curves, and shows how these differ from their US versions. We interpret UK Phillips curve dynamics in a positive theory of monetary policy—how policy-maker attitudes on the Phillips curve have evolved since the 1950s—rather than, more traditionally, as interaction between exogenous demand and supply disturbances. Combining this fr...

The subject of this paper is the estimation of the Phillips curve in Thailand. The aim of the estimation is to ...t the Phillips curve as part of a small-scale, log-linearised structural model for the country, which is suitable to form the basis for a future simulation exercise to ...nd an optimum monetary policy rule. A linear form of the Phillips curve is estimated using ordinary least square...