Under the exclusive distribution category, agreements/components whose main element is sold by the manufacturer to only one or a limited number of buyers. This may include limiting the number of buyers for a specific territory or group of customers or restricting the type of buyers. The group includes exclusive distribution and exclusive allocation of customers, since the supplier limits its sales to a single buyer for a specific territory or class of customers. It also includes the exclusive delivery and quantity imposed on the supplier when a commitment or incentive regime agreed between the supplier and the buyer leads the first to sell only or primarily to a buyer in a given market. For example, when a producer pays a premium to a retailer, it is in the retailer`s best interest to focus its revenue on that retailer in order to spread the cost of the allocation. Finally, this group includes selective distribution, under which the conditions imposed or agreed with the selected distributors may limit their number. If the supply of public goods to the market is insufficient, then another possible solution will be to make them available by non-commercial means.  One of the frequently proposed solutions is for states to impose a tax to finance the production of public goods. The state`s provision is generally intended to address the problem of parasites within its national borders, giving citizens the assurance that others will not be released.
While ensuring that the common good is assured, taxation does not seek to address the issue of market efficiency. Issues relating to the economic effectiveness of public services are examined by public election theory and public finances. Hobbes` argument in favour of the state is an argument of mutual benefit. We all benefit from the existence of a powerful state that regulates behaviour, which allows us to make efforts to produce things, to improve our lives and to allow us to exchange with each other without fear of others destroying our efforts. Some researchers see this resolution as a matter of mutual cooperation in a major detention dilemma. This is a strategic or playful mistake, because the creation of a state is a matter of coordination of one or the other sovereign, not a matter of exchange between us or between us and the sovereign. Once this situation comes into force, it might be true that I would prefer to drive freely on the best behavior of my fellow citizens, who are generally law-abiding.