This document provides an overview of the definition and characteristics of different business sizes and types, including micro, small, medium, and large size businesses, as well as sole trader business, partnership, limited liability business, public limited liability business, and cooperative. It also explains how different organizational structures and external factors can impact business productivity. The content covers various examples and highlights the importance of understanding the macro environment and conducting a PESTEL analysis. Overall, it emphasizes the significance of the business environment in achieving organizational goals and objectives.