Empirical test of the Balassa-Samuelson Effect in Selected African Countries

The purpose of this study investigates the validity of the Balassa-Samuelson effect in selected African countries. The kernel of the Balassa-Samuelson (BS) effect is the relationship between productivity and real exchange rate. The study therefore, estimates the equilibrium real exchange with total factor productivity as the main explanatory variable. The results revealed that Balassa-Samuelson effect holds in the selected African countries. The results show a positive relationship between real exchange rate and productivity. An increase in total factor productivity causes real exchange rate appreciation. An improvement in productivity can cause countries to experience an increase in prices of their products relative to trading partners. The study recommends that the selected African countries should pursue policies that maintain competitive real exchange rate

A State of the Art on Railway Simulation Modelling Software Packages and Their Application to Designing Baggage Transfer Services

There is a new baggage transfer service suggested in Newcastle Central Station. In order to prove that this service is feasible, a simulation model can be developed to test the concept and operating pattern behind. For the purposes of this paper, we intend to organize a literature review on simulation modelling software packages employed to study service design. Specifically, this paper has compared five different simulation software packages used by the railway industry to study service-related challenges. As a result, it is suggested that SIMUL8, a macroscopic discrete event-based software package, should be used among the five compared ones because of its simplicity and the ability to give practical results for the design and performance of such a baggage transfer system