The problem: Contract selection is never random but influenced by factors such as fleet size, usage level, types of product and risk aversion.

FORBES: Magazine Article

Unfortunately, those same factors, plus near-random taxation, also serve as a powerful disincentive to anyone thinking of investing in a new local factory.

ECONOMIST: Russian computers

But at the moment, the apparent increase could be attributed to any number of factors, such as better diagnosis, or random fluctuations in the incidence of the disease, rather than the start of an epidemic.

ECONOMIST: Mad-cow disease