identity

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identity

a means of portraying arithmetically the enduring equality between two (or more) VARIABLES that are equal by definition. For example, £1 = 100p (or $1 = 100¢), and no matter how many pounds (or dollars) we have, they can always be converted into pennies (or cents) by multiplying by 100. Identities are generally given a three-bar ‘identity’ sign (=) to indicate that the value to the left of the three bars is identical to the value to the right of the sign. The QUANTITY THEORY OF MONEY is one of the best-known examples of an identity in economics, written as:

where M is the money stock, V is the velocity of circulation of money, P is the general price level and T is the number of transactions undertaken. See EQUATION.

References in periodicals archive ?
"When Marines downrange encounter a person of interest, they use IDS-MC to collect biometric data," said Teresa Sedlacek, lead engineer for Identity Operations at MCSC.
CJ36 was divided into the following sections: Operations; Plans; Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE); Personnel Recovery; Air and Missile Defense; and Identity Operations. While the Operations and Plans Sections were sufficiently manned by the III Corps staff when augmented by the initial joint fills, the Personnel Recovery Section required immediate additional augmentation.
The Navy and Marine Corps adopted a similar concept known as Identity Operations (IdOps) into their respective Service doctrine.