If the income elasticity of demand for dental services is –0.6, this means that people purchase more dental services when the price is lowered

The law of diminishing marginal returns states that as the quantity of capital per worker increases, other things constant, output per worker eventually: a. increases at a constant rate

b. increases at a decreasing rate. c. increases at an increasing rate. d. decreases. e. remains constant.

Vertical equity and horizontal equity are associated with

a. the benefits principle of taxation. b. the ability-to-pay principle of taxation. c. taxes that have no deadweight losses. d. falling marginal tax rates.