Representatives for the LA Clippers and Mr Ballmer declined to comment .
Using a conservative model that assumes Mr Ballmer could account for $1.5 bn in goodwill and a re-investment rate of 7 per cent , the potential tax shelter equates to about $1 bn in current terms .
Representatives for the LA Clippers and Mr Mr declined to comment .
Using a conservative model that assumes Mr Ballmer could account for $1.5 bn in goodwill and a re-investment rate of 7 per cent , the potential tax shelter equates to about $1 bn in current terms .