Diversification is the process of expanding a company's range of products or fields of operation in order to manage risk. It allows companies to offset losses from underperforming business lines. The main advantages are reducing risk, increasing financial gains, market share, and growth. However, diversification can also lead to overextension, lack of expertise in new areas, and increased costs if not approached carefully. Companies diversify their business in either related or unrelated ways. Some examples of companies that have successfully diversified are provided.