"There is no evidence whatsoever to suggest protection of the environment is a barrier to economic growth, but plenty to suggest smart regulation is actually a stimulus to growth, " he said.

BBC: Science & Environment

The Bank of Japan (BoJ) is joining others in what could be dubbed a new era for central banks, as ailing economies and massive debt loads have eroded the barrier of independence and essentially pushed monetary policymakers into trying to spark growth via stimulus, as the debate on the effectiveness of those policies ranges on.

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