From the perspective of a utilitarian, if both of their incomes are subject to diminishing marginal utility, taking a dollar from ms. spring and giving it to Mr. Fall will increase society's total utility.
The law of diminishing marginal utility proposes to state that the total utility derived by an individual upon consumption of one additional unit of a product will continue to increase, but at a diminishing rate. It also states that the marginal utility will never keep increasing after achieving the point of maximum satisfaction through the consumption of a product.
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