Abenomics has not had much impact reviving the fits-and-starts Japanese economy. That is the verdict of nearly two dozen economists canvassed in a new Bloomberg News survey.

Prime Minister Shinzo Abe's signature domestic policy received an average score of 4.6 points out of 10 for overall economic effectiveness in a survey of 23 economists by Bloomberg from Feb. 26 through March 4.

The survey sounded out economists about the efficacy of Abe's three-pronged program — aggressive monetary policy, fiscal stimulus and a regulatory overhaul — on Japanese growth, deflation and structural reforms on a scale of 1 (worst) to 10 (best).