In this country, the number of individuals on the government payroll certainly underestimates the importance of government. - Harvey S. Rosen

Only empirical work - analysis based on observation and experience as opposed to theory - can answer the question of how labor force behavior is affected by changes in the tax system. Even intense armchair speculation on this matter must be regarded with considerable skepticism.

It must be emphasized that free ridership is not a fact; it is an implication of the hypothesis that people maximize a utility function that depends only on their own consumption of goods.

Dioxin is the outcome of the operations of markets. Does this mean that having dioxin in the environment is efficient?