What would be the effect of having no health insurance available? a. The quantity of healthcare would be set at where the marginal benefit and marginal cost are equal. b. Excess demand for healthcare would be the result because the quantity supplied would be at a level where the marginal benefit exceeds the marginal cost. c. Excess supply for healthcare would be the result because the quantity supplied would be at a level where the marginal benefit would be below the marginal cost. d. the quantity of healthcare would be at an inefficient level. 30. If horizontal equity is achieved in taxation, a. vertical equity will also be achieved. b. individuals of equal economic capacity will pay equal taxes. c. a flat-rate tax will be used. d. the tax system will not result in losses in efficiency in markets.