Variable

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Variable

An element in a model. For example, in the model RS&Pt+1 = a + b Tbill t + et, where RS&Pt+1 is the return on the S&P in month t+1 and Tbill is the Tbill return at month t, both RS&P and Tbill are "variables" because they change through time; i.e., they are not constant.

Variable

Anything that does not have a set value. In basic algebra, a variable is often expressed as "x." Variables in economics and finance may be measures such as GDP, prices, or interest rates. Analysts use complicated equations to determine the value of some variables at the present time and even more complicated equations to predict their possible future values. See also: Regression.

variable

Something, such as stock prices, earnings, dividend payments, interest rates, and gross domestic product, that has no fixed quantitative value. See also dependent variable, independent variable.
References in periodicals archive ?
The variably perforated panels veil the structure and filter the light, turning the building into a delicately glowing lantern after dark.
Both consistently rhotic and variably non-rhotic SSE speakers may adopt the RP [ae] vowel from the TRAP set.
This interlocking trio of assemblages was as intimately related to Sze's previous work as a spore to its fungus and as variably related to her themes as a mutation to its virus.
In addition, Honda has a goal to improve fuel efficiency by 20% over 2005 levels for its revolutionary high expansion ratio engine that variably controls the engine's stroke length during the intake/compression and expansion/exhaust processes.
Mr Jellis said: "Fungicide programmes performed variably last season, particularly against Septoria tritici.
An electric system, however, can be variably controlled from a low rpm rate to full speed.
Dealers iii antiques, rare postage stamps, or jewelry would be required to file reports when any customer uses more than $10,000 in currency for a purchase or when there is something "suspicious" (a notoriously vague and variably interpreted term) about an actual or potential transaction.
The authors begin by articulating the notion of a multigrade predicate: one that takes variably many arguments.
Paleoproterozoic orogens were variably affected by post-collisional magmatism, i.
This style has been mocked by some fight fans variably as "leading with your face" with "taking two punches to land one," but the appeal of the gutsy boxer is unquestionable.
Light that is coupled out of the waveguide is mixed with a variably delayed gating pulse in a non-linear crystal to time resolve the output.
Since maternity in the early modern period--and female gynecology in general--was overtaken by the patriarchal medical institutions of modernity, an essay accounting for the shift might have added further to the volume; nevertheless, Maternal Measures is a fine and exhaustive treatment of its subject, opening up new and rich perspectives onto a time when early modern mothers and caregivers, in Naomi Miller's words, "found the knowledge and power to connect with one another, and variably resist or even reform some of the practices and expectations that determined their standing in society" (19).