Refreshed and updated PowerPoint resources aimed at assisting teachers with the delivery of the WJEC/Eduqas A-level Business specification. These slides are designed to support the delivery of the Component One topic of economies of scale. They explain what is meant by economies and diseconomies of scale, providing detail about the different types of internal and external economies that a business can face. They then explain the problems caused by diseconomies and analyse some of the reasons as to why small firms survive. The slides contain the Quick Fire Five questions and also a practice essay (both with solutions).