write this post in different words.During the optimal allocation of public goods there is a conflict of efficient allocation and equity. Economic concepts call for allocative efficiency so that maximum utility is achieved. However, public choice theory calls for equity so as to maximize equity. To ensure that fairness and equity are achieved alongside efficiency is quite a challenge for economists. In addition, Public goods are prone to the free rider problem. Some members of community will use the public good since its non excludable and will not pay for it. This type of market failure is a common challenge for economies