That logic seemed to work in January 2001 when the ratio hit a high of 0.97, suggesting that investors thought the index was ready to take off.

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Determine first which of your work is which, and the ratio between the two, and that will give you a clue as to whether you really need to invest in Cloud computing.

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When work teams get together, the ratio of positive interactions, such as support and encouragement, to negative interactions, such as disapproval and criticism, should be about 3-to-1 or higher in order to ensure top performance, based on research by Barbara Fredrickson, a psychology professor at the University of North Carolina, Chapel Hill, and others.

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According to the most recent statistics, the ratio of the number of people looking for work (13.5 million) to the number of job openings is 23%.

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The amount of private work being taken on had not increased, it found, the rate of decline in productivity had slowed, the ratio of full-time consultants to total staff in the NHS had risen and pay rises not linked to performance had slowed.

BBC: Doctor in a hospital in Gloucestershire