1.1 Part 1: Utility function (12 points) The representative agent has the following CRRA per-period utility function: with a e (0,1) 1. Write down the inter-temporal utility function U(c1, C2), assuming the agent lives only for two periods, with a discount factor p 6 (0,1).1 2. Show that the inter-temporal utility function is increasing in both periods consumption. 3. Show that the marginal utility of consumption in both periods is decreasing. 4. Provide an interpretation of all exogenous parameters of the model. If someone told you that they were a present-focused person, what would be aected