These groups are exclusive: the most productive farmers do not want less able neighbours to spoil their collective credit history.

ECONOMIST: No title

In 1977 he got a contract with the Cuban government that gave him exclusive right to bring in groups of U.S. bass fishermen.

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Of course, none of these groups are necessarily mutually exclusive.

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Besides, says Surowiecki, these groups are not mutually exclusive.

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It's getting harder to paint the Net as an exclusive domain for geeks, social outcasts, libertarians and hate groups.

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They are perceived as a homogenous and exclusive community, despite the fact that the differences between the different religious and cultural groups within the Asian community - between Hindus and Moslems, between Goans and Punjabis - can be as deeply divisive and mutually exclusive as those dividing Asians from their African neighbours.

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This week she announced that her bureau is aggregating Internet auction fraud complaints from state officials, consumer groups and online auctions such as eBay (EBAY) into a massive database for exclusive use by law enforcement.

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The decision by Saks, an exclusive retailer, to slash prices during the 2008 holiday season caused consternation among some luxury-goods groups.

ECONOMIST: Easier for a camel