The optimal level of public expenditure would be a value which is closest to individual preferences contingent upon the specific set of property rights that exist. Individual indifference and preferences are about property right structure and mechanisms to change it as a generator operator behaviour. Social indifferences and the commonality of preferences being considered, Laws which effect group behaviour rendering many other behaviour redundant generate efficient reflection of individual preferences when market crystallizations are sufficient with bounded rationality.Optimality requires an emotional cost depending on the outcome of the decision and cognitive costs which is of the mental processing cost of coming to a decision. The time required for restoration of the third state is the measure of benefit obliquely.