Which of the following contributes to creating a competitive advantage for a brand?

Creating barriers to entry is a significant factor in establishing a competitive advantage for a brand. When a company successfully establishes barriers to entry, it makes it more difficult for competitors to enter the market and challenges the company's market position. These barriers can take various forms, such as high capital requirements, access to distribution channels, proprietary technology, economies of scale, or customer loyalty. By preventing new entrants from easily competing, established brands can maintain higher market share and profitability.

While the other options may contribute to a firm's overall success, they do not inherently create a competitive edge in the same way. Reducing production costs can enhance profitability but, if easily replicable by competitors, does not guarantee a unique market position. Increasing product variety may enhance customer appeal but also runs the risk of diluting the brand if not managed effectively. Expanding distribution channels can improve market reach but does not necessarily protect against competition unless accompanied by other strategic advantages. Thus, the creation of barriers to entry effectively solidifies a brand's competitive advantage by safeguarding its market position from potential rivals.