The theory of consumer behavior is based on all the following assumption except that the

The theory of consumer behavior is based on all of the following assumptions except that the consumer is assumed irrational. In fact, the theory assumes that the consumer is rational and seeks to maximize their utility, subject to a budget constraint. This means that consumers make choices based on their preferences and the prices of goods and services, with the goal of maximizing their satisfaction or "utility" within the constraints of their budget. Additionally, the theory assumes that consumer tastes are consistent and that consumers are exposed to more than one commodity, meaning that they have a choice between different goods and services. Overall, the theory of consumer behavior seeks to explain how consumers make choices based on their preferences and available resources.