Empirical studies have conŽrmed the prediction of theoretical models that contact in multiple markets may enhance Žrms’ abilities to tacitly collude and consequently achieve higher prices and proŽts. It has remained largely unexplored, however, how Žrms coordinate their actions. This paper identiŽes a method of pricing in the cellular telephone industry that seems to enable Žrms to coordinate t...

Classical theism holds that God rules the world not only indirectly, by the natural laws established with creation, but through actions or direct interventions that interfere with natural processes and human actions. These direct interventions are usually called miracles. Modern Western philosophy, at least starting from Spinoza and Hume, has defined miracles as “violations of the laws of natur...

the issue of successful project management and control is of vital importance in today’s world. although the time and cost of any project is determined in advance, paying less attention to an appropriate control and revision will result in a small chance of reaching those goals. the earned value management method that shows deviation of projects schedules and costs is of the good method for thi...

Web Services are web-based applications made available for web users or remote Web-based programs. In order to promote interoperability, they publish their interfaces in the so-called WSDL file and allow remote call over the network. Although Web Services can be used in different ways, the industry standard is the Service Oriented Architecture Web Services that doesn't rely on the implementatio...