We study a resource utilization scenario characterized by intrinsic attractiveness. We consider a system of many restaurants where customers compete, as in a game, to get the best services out of many choices using iterative learning . Results for the case with uniform attractiveness are reported. When attractiveness is uniformly distributed, it gives rise to a Zipf-Pareto law for the number of customers. We perform an exact calculation for the utilization fraction for the case when choices are made independent of attractiveness . A variant of the model is also introduced where the attractiveness can be treated as a fitness to stay in the business. When a restaurant loses customers, its fitness is replaced by a random fitness. The steady state fitness distribution is characterized by a power law, but the distribution in number of customers is still given by power law, implying the robustness of the model. Our model serves as a paradigm for city size distribution and the emergence of Zipf law  .
We study a resource utilization scenario characterized by intrinsic fitness. To describe the growth URLanization of different cities, we consider a model for resource utilization where many restaurants compete, as in a game, to attract customers using an iterative learning process . Results for the case of restaurants with uniform fitness are reported. When fitness is uniformly distributed, it gives rise to a Zipf law for the number of customers. We perform an exact calculation for the utilization fraction for the case when choices are made independent of fitness . A variant of the model is also introduced where the fitness can be treated as an ability to stay in the business. When a restaurant loses customers, its fitness is replaced by a random fitness. The steady state fitness distribution is characterized by a power law, while the distribution of the number of customers still follows the Zipf law, implying the robustness of the model. Our model serves as a paradigm for the emergence of Zipf law in city size distribution .
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