Academic writing of 1500 words

1500 words. My Budget is 10$ to 15$ 1- briefly analyze the problems of market failure. how markets can work perfectly with equally in marginal social cost and marginal socials benefit? explain with graphical presentation. 2- what are the features of monopolistic competition. 3- what is perfect compitition? explain the price and output determination under perfect competition in the long run. 4- briefly explain the elasticity of demand? bring out the graphical representation on the 5 cases of elasticity of demand. 5- which are the various factors influencing the level of demand for a product? explain the relationship between price & demand .