While one point of view is that federal antitrust policy is not vigorous enough, Professor Coase reminds us that it is easy to exaggerate the economic problems created by dominant sellers.
The author's research has been vigorous enough to include reading the many memoirs that came out of this ordeal and interviewing every former hostage who would talk to him.
Ha! That's so funny, that you think of me as being youthful and vigorous enough to order from the children's menu or, say, take the reins of a large organization for eight years.
The black churches (such as the one that Mr Rivers runs) are vigorous enough, but their impact is necessarily limited.
And City Councilman Bill de Blasio, chairman of the General Welfare Committee, said that Mr. Bloomberg was not vigorous enough in pressuring the private sector to raise wages or the state and federal governments to subsidize programs.
But the success of the smugglers in avoiding detection suggests that current procedures may not be vigorous enough, one high-ranking low enforcement official said.
In his view, that demands maintaining a society strong and vigorous enough to attract steady Jewish immigration and then settling those newcomers throughout the historic land of Palestine, from the Jordan River to the Mediterranean Sea.
Some felt he was not vigorous enough in removing pro-Diệm elements from authority, whereas others felt that the magnitude of the turnover of public servants was excessive and bordering on vengeance.
Just not vigorous enough.
United's response was vigorous enough.
