But isn't Lucas still offering policy advice on the basis of his theories?

He has undertaken research and provided policy advice on air quality management in developing countries.

He further enlarged the College and developed its role as a source of policy advice.

And finally, if you want to give policy advice, it's not enough to know your numbers.

Academic economists have given varied policy advice to governments of developing countries.

The Commission's services include mediation, information, complaints about possible violations of child rights and policy advice.

Yet he admits that his policy advice, even if it had been accepted immediately and turned into action, would not have prevented 9/11.

As officials move up the hierarchy they may be more involved in policy advice rather than managing budgets or people.

Lewis's policy advice has particular weight thanks to this scholarly authority.

But then there's other policy advice, like don't write it down.