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 ?
Match DELTALP A continuous variable uncertainty measuring the level of competitiveness of the game by the absolute difference in league positions.
Each discrete constant alternative is selected to be the discrete solution of the corresponding continuous variable only if the calculated value of the assigned binary variable is equal to 1.
The continuous variable transmission (CVT) model of Micra and Sunny would be the first to hit the road in 2013.
In a multivariate Cox proportional hazards analysis that considered each factor as a continuous variable, the strongest predictor of failure was PAP (P = 0.
Linear trends across categories were tested using the median U-As concentrations within categories as continuous variable.
When investigators looked at oral contraceptive use as a continuous variable in this study, it was shown to be associated with an even greater protective effect.
0-litre design includes Electronic Throttle Control with secondary mapping in 4LO (4x4 models), Continuous Variable Valve Timing Control System (CVTCS), Nissan variable Induction Control System (NICS), silent timing chain, microfinished camshaft and crankshaft surfaces, molybdenum-coated pistons and lightweight aluminium block.
In line with this, no association was observed when tea consumption was studied as continuous variable.
a major all terrain vehicle (ATV) exporter in Taiwan, recently unveiled its latest 800cc motorcycle at the 2012 Taiwan International Motorcycle Industry Show (Motorcycle Taiwan), which is the biggest-displacement motorcycle with a continuous variable transmission (CVT) made by a Taiwanese company.
The combination of one continuous variable and one discrete (binary) variable simply facilitates graphical presentation of the model.
We estimated hazard ratios (HRs) for future cardiovascular events according to tertiles, upper vs lower 2 tertiles, 1SD increment of MR-proADM, and MR-proADM as a continuous variable by Cox regression models adjusted for potential confounders.
GPA: a continuous variable representing the current class GPA up to completion of the Quantitative Methods course.

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