Soundly structured and highly practical, this informative guide introduces users to the concepts, methodologies, and applications of simulation in business, using easy-to-apply Microsoft Excel spreadsheets as the principal means to illustrate simulation modeling concepts, computational issues, and analysis of results. Uses spreadsheets throughout to convey quantitative methodologies in a language readers can most easily understand, and allows them to address the elementary concepts of both risk analysis and systems simulation approaches in a common framework.