Uber uses dynamic pricing, also called surge pricing, where fares are adjusted upwards during periods of high demand to incentivize more drivers to meet rider demand. This strategy allows Uber to maximize supply and demand but has faced challenges from regulators limiting fare increases and from competitors. While Uber has yet to be profitable, its losses are decreasing as it grows and updates its pricing approach, such as showing quoted prices instead of multipliers, though customers still sometimes object to perceived price increases during surges.