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decision variable

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Definition of decision variable

Decision Variable Image 1

decision variable

an unknown item for which a linear programming
problem is being solved



Related Terms:

input-output coefficient

a number (prefaced as a multiplier
to an unknown variable) that indicates the rate at which each
decision variable uses up (or depletes) the scarce resource


Asset allocation decision

The decision regarding how an institution's funds should be distributed among the
major classes of assets in which it may invest.


capital budgeting decision

decision as to which real assets the firm should acquire.


Continuous random variable

A random value that can take any fractional value within specified ranges, as
contrasted with a discrete variable.


decision making

the process of choosing among the alternative
solutions available to a course of action or a problem
situation



Decision tree

Method of representing alternative sequential decisions and the possible outcomes from these decisions.


decision tree

Diagram of sequential decisions and possible outcomes.


Decision Variable Image 2

dependent variable

an unknown variable that is to be predicted
using one or more independent variables


Discrete random variable

A random variable that can take only a certain specified set of discrete possible
values - for example, the positive integers 1, 2, 3, . . .


Endogenous variable

A value determined within the context of a model.


Exogenous variable

A variable whose value is determined outside the model in which it is used. Also called
a parameter.


financing decision

a judgment made regarding the method
of raising funds that will be used to make acquisitions; it
is based on an entity’s ability to issue and service debt and
equity securities


financing decision

decision as to how to raise the money to pay for investments in real assets.


Financing decisions

decisions concerning the liabilities and stockholders' equity side of the firm's balance
sheet, such as the decision to issue bonds.


independent variable

a variable that, when changed, will
cause consistent, observable changes in another variable;
a variable used as the basis of predicting the value of a
dependent variable


investment decision

a judgment about which assets will be
acquired by an entity to achieve its stated objectives


Investment decisions

decisions concerning the asset side of a firm's balance sheet, such as the decision to
offer a new product.


key variable

a critical factor that management believes will
be a direct cause of the achievement or nonachievement
of the organizational goals and objectives



make-or-buy decision

a decision that compares the cost of
internally manufacturing a component of a final product
(or providing a service function) with the cost of purchasing
it from outside suppliers (outsourcing) or from another
division of the company at a specified transfer price


Managerial decisions

decisions concerning the operation of the firm, such as the choice of firm size, firm
growth rates, and employee compensation.


Mutually exclusive investment decisions

Investment decisions in which the acceptance of a project
precludes the acceptance of one or more alternative projects.


Normal random variable

A random variable that has a normal probability distribution.


outsourcing decision

see make-or-buy decision


preference decision

the second decision made in capital project evaluation in which projects are ranked according to their impact on the achievement of company objectives


Random variable

A function that assigns a real number to each and every possible outcome of a random experiment.


screening decision

the first decision made in evaluating capital
projects; it indicates whether a project is desirable based
on some previously established minimum criterion or criteria
(see also preference decision)


Security selection decision

Choosing the particular securities to include in a portfolio.


Semi-variable costs

Costs that have both fixed and variable components.



slack variable

a variable used in a linear programming problem
that represents the unused amount of a resource at
any level of operation; it is associated with less-than-orequal-
to constraints


special order decision

a situation in which management must determine a sales price to charge for manufacturing or service jobs outside the company’s normal production/service market


surplus variable

a variable used in a linear programming problem that represents overachievement of a minimum requirement; it is associated with greater-than-or-equal-to constraints


Variable

A value determined within the context of a model. Also called endogenous variable.


Variable annuities

Annuity contracts in which the issuer pays a periodic amount linked to the investment
performance of an underlying portfolio.


Variable Annuity

A form of annuity policy under which the amount of each benefit is not guaranteed or specified. The amounts fluctuate according to the earnings of a separate investment account.


Variable cost

A cost that is directly proportional to the volume of output produced. When production is zero,
the variable cost is equal to zero.


Variable cost

A cost that increases or decreases in proportion with increases or decreases in the volume of production of goods or services.


variable cost

a cost that varies in total in direct proportion
to changes in activity; it is constant on a per unit basis


Variable cost

A cost that changes in amount in relation to changes in a related activity.
Variance
The difference between an actual measured result and a basis, such as a budgeted amount.


variable cost ratio

the proportion of each revenue dollar
represented by variable costs; computed as variable costs
divided by sales or as (1 - contribution margin ratio)


Variable costing

A method of costing in which only variable production costs are treated as product costs and in which all fixed (production and non-production) costs are treated as period costs.


variable costing

a cost accumulation and reporting method
that includes only variable production costs (direct material,
direct labor, and variable overhead) as inventoriable
or product costs; it treats fixed overhead as a period cost;
is not acceptable for external reporting and tax returns


variable costs

Costs that change as the level of output changes.


VARIABLE EXPENSES

Those that vary with the amount of goods you produce or sell. These may include utility bills, labor, etc.


variable expenses

Expenses that change with changes in either sales volume
or sales revenue, in contrast to fixed expenses that remain the same
over the short run and do not fluctuate in response to changes in sales
volume or sales revenue. See also revenue-driven expenses and unitdriven
expenses.


Variable life insurance policy

A whole life insurance policy that provides a death benefit dependent on the
insured's portfolio market value at the time of death. Typically the company invests premiums in common
stocks, and hence variable life policies are referred to as equity-linked policies.


variable overhead efficiency variance

the difference between budgeted variable overhead based on actual input activity and variable overhead applied to production


variable overhead spending variance

the difference between total actual variable overhead and the budgeted amount of variable overhead based on actual input activity


Variable price security

A security, such as stocks or bonds, that sells at a fluctuating, market-determined price.


Variable rate CDs

Short-term certificate of deposits that pay interest periodically on roll dates. On each roll
date, the coupon on the CD is adjusted to reflect current market rates.


Variable rate loan

Loan made at an interest rate that fluctuates based on a base interest rate such as the
Prime Rate or LIBOR.


Variable rated demand bond (VRDB)

Floating rate bond that can be sold back periodically to the issuer.


Contribution margin

The margin that results when variable production costs are subtracted
from revenue. It is most useful for making incremental pricing decisions
where a company must cover its variable costs, though perhaps not all of its fixed
costs.


gross margin, or gross profit

This first-line measure of profit
equals sales revenue less cost of goods sold. This is profit before operating
expenses and interest and income tax expenses are deducted. Financial
reporting standards require that gross margin be reported in
external income statements. Gross margin is a key variable in management
profit reports for decision making and control. Gross margin
doesn’t apply to service businesses that don’t sell products.


revenue-driven expenses

Operating expenses that vary in proportion to
changes in total sales revenue (total dollars of sales). Examples are sales
commissions based on sales revenue, credit card discount expenses, and
rents and franchise fees based on sales revenue. These expenses are one
of the key variables in a profit model. Segregating these expenses from
other types of expenses that behave differently is essential for management
decision-making analysis. (These expenses are not disclosed separately
in externally reported income statements.)


sensitivity analysis

a process of determining the amount of change that must occur in a variable before a different decision would be made


unit margin

The profit per unit sold of a product after deducting product
cost and variable expenses of selling the product from the sales price of
the product. Unit margin equals profit before fixed operating expenses
are considered and before interest and income tax are deducted. Unit
margin is one of the key variables in a profit model for decision-making
analysis.



 

 

 

 

 

 

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