The assignment discusses the differences between local audit firms and big four auditing firms. It highlights that while local firms may have knowledge of laws and regulations governing their specific region, they may lack expertise in other regions. In contrast, big four firms operate globally and have uniform procedures and documentation across all continents, making it easier to conduct audits efficiently. However, the assignment also notes that big four firms may not be suitable for small or local companies with limited data management systems, as they require detailed information and may create friction with middle-level management. Ultimately, the choice between a local audit firm and a big four firm depends on the company's specific needs and operations.