Opinion: Executive interventions

Extraordinary times can demand extraordinary steps from business
leaders, and sometimes that means literally using your money where
you might otherwise prefer to rely on words.
In recent days the top executives of two P&C insurers
stepped up and bought stock in their companies on the open market,
presumably as a show of confidence even as the shares fell to
multi-year lows.
But this strategy of symbolically buying shares is by no means
certain to work.
At Maiden Holdings, CEO...