Here's my mental model for understanding how value creation, pricing power, barriers to entry and switching costs all come together.VALUE CREATION: Profit growth requires selling more, raising prices and cutting costs.PRICING POWER: Raising prices requires pricing power. Customers only put up with price hikes if there is no alternative (unique product), if the alternative is lower quality (superior product), if the alternative is a higher price (cheaper product) or if using the alternative is inconvenient (switching cost).BARRIERS TO ENTRY: There is only no alternative if companies can't replicate their competitors. Competitors can't replicate if they don't know how (knowledge barrier), don't have the capability (capability barrier), don't have the resource (resource barrier) or aren't all