Elmhurst Corporation is considering changes to its responsibility accounting system. Which of the following statements​ is/are correct for a responsibility accounting​ system? I. In a cost​ center, managers are responsible for controlling costs but not revenue. II. The idea behind responsibility accounting is that a manager should be held responsible for those items that the manager can control to a significant extent. III. To be​ effective, a good responsibility accounting system must help managers to plan and to control. IV. Costs that are allocated to a responsibility center are normally controllable by the responsibility center manager.

3. saving two consumers, larry and jeff, have utility functions defined over the two periods of their lives: middle age (period zero) and retirement (period 1). they have the same income in period 0 of m dollars and they will not earn income in period 1. the interest rate they face is r. larry’s and jeff’s utility functions are as follow. = 0.5 + 0.5 and = 0.5 + 0.5 for each person is between zero and one and represents each consumer’s temporal discount econ 340: intermediate microeconomics. ben van kammen: purdue university. rate. a. write the budget constraint that applies to both jeff and larry in terms of consumption in each period and ), interest rate, and m. b. what is larry’s and what is jeff’s marginal rate of intertemporal substitution? c. what is the slope of the budget constraint? d. write each consumer’s condition for lifetime utility maximization. e. re-arrange the conditions from part (d) to solve for the ratio, . f. if > which consumer will save more of his middle age income? g. if > 1 1+ , in which period will larry consume more: = 0 or = 1?