Answer:
Under the capitalist structure, the distribution of services is highly reliant mostly on price fluctuations of the commodities itself. For both buyers as well as vendors in the industry, price serves as a predictor.
Sellers can use heavy priced limited raw commodities (e.g. the copper industry) or tools to manufacture high-value items to be specifically given specific pricing details. Similarly, only those buyers who see profit in buying those better priced goods would also enable them to maintain equilibrium within the scheme.