In 2007, he wrote,

Every action of the State must be subject to a double independent evaluation. The first should be before the action: Is public intervention necessary? What are the costs and benefits? The second is after. Did it work? Was it cost effective? On this point, it would be necessary to require that the audit recommendations (for example, those of the Audit Court) be either followed according to a strict schedule, or rejected with a convincing justification.

Interesting throughout. Pointer from Mark Thoma.