Refer to Table 1-1. What is Eva's marginal benefit if she decides to stay open for two hours instead of one hour?

The economy's marginal benefit curve for a public good is found by ________ for all individuals

A) vertically summing the marginal benefit curves B) vertically summing the total benefit curves C) horizontally summing the total benefit curves D) horizontally summing the marginal benefit curves

The statement "There is no accounting for taste" implies

A) individuals all have the same preferences. B) individuals all have different cardinal preferences but the same ordinal preferences. C) individuals all have different ordinal preferences but the same cardinal preferences. D) individuals all have different ordinal and cardinal preferences.