1. Its argued that the environment is a type of infrastructure that requires maintenance, describe how to determine the efficient level of maintenance. What would be the benefits of maintenance and what would be the cost of maintenance, and how would these benefits and cost change as the amount of maintenance increases. what are the benefits of NOT doing maintenance, and what are the cost of NOT doing maintenance? is there currently too much, too little or an efficient amount of maintenance, and explain why you choose that answer?

2. Explain why having no price required to be paid for using the environment results in over use of environmental services. Explain how paying for the use of environmental services would lead to investment in or maintenance of environmental assets.