Ekonomie stochastické identity na příkladu pravidelných nákupů

The diploma thesis builds on the research of Identity in economics. The diploma thesis improves the concept of Identity, as it comes to the conclusion that from the point of view of economics, Identity can legitimately be defined as a set of decision-maker's terminal goals, which evolve randomly over time. Based on this information, the thesis proposes a mechanism for introducing stochastic elements into the utility function. Using the term character of consumption, thesis illustrates that due to the given mechanism, a model of precommitments might be obtained. The thesis then presents a model of the optimal choice of precommitment of a decision-maker with stochastic Identity, who makes term decisions. It verifies two hypotheses on a given model using a simulation approach. The first hypothesis is that for decision-makers with changing preferences, it is on average more advantageous in the presented model to make more frequent decisions than if their preferences were stable. The second hypothesis is that the decision-makers's true preferences can be modeled as the equilibrium around which revealed preferences fluctuate. Thesis rejects the first hypothesis and confirms the second.