>> Just eyeballing it from a couple of recent world almanacs and one
>> older one:
>
> According to Pankaj Ghemawat and Fariborz Ghadar's study of 40
> industries ("The Dubious Logic of Global Megamergers," Harvard
> Business Review, July-August 2000), there's been no trend towards
> increased concentration in the post-WW II period.
We've been over this here some years ago - my memory is that they excluded trade, finance, services etc etc AND that their methodology was inaccessible. Surely there's some accessible semi-official measure of concentration by sector, rather than this strange piece by BSchool types?
john mage