Whatever form and level of security we choose, determined by whatever sets of values we hold, carries a price tag that can be compared with those for alternative security systems

In the "Interdisciplinary Perspective" titled "A Philosophical Critique on the Marginal Utility of Money," the basic point made is that

a. the law of diminishing marginal utility does not apply to money b. marginal utility always increases at an increasing rate for money c. once basic needs are met, additional income or wealth does not increase happiness d. most of the theories advanced by economists are flawed e. the total utility function for money has a downward slope

The relative scarcity of water in desert societies causes the marginal utility of the last unit consumed to be

a. zero b. low c. high d. equal to price e. equal to demand