THE end of takeover talks between WH Smith and Permira late last week saw shares in the retailer fall to 290p. That is 85p a share less that Permira had initially said it would offer, and within a couple of pence of the £215m pension fund deficit that was at the centre of the falling out. It highlights again, as Philip Green also found to his cost, that pension deficits could put paid to highly leveraged takeover bids.