Definition of overhead efficiency variance

overhead efficiency variance

the difference between total budgeted overhead at actual hours and total budgeted
overhead at standard hours allowed for the production
achieved; it is computed as part of a three-variance analysis;
it is the same as variable overhead efficiency variance

variable overhead efficiency variance

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

Capital market efficiency

Reflects the relative amount of wealth wasted in making transactions. An efficient
capital market allows the transfer of assets with little wealth loss. See: efficient market hypothesis.

Covariance

A statistical measure of the degree to which random variables move together.

Efficiency

Reflects the amount of wasted energy.

External efficiency

Related: pricing efficiency.

Informational efficiency

The speed and accuracy with which prices reflect new information.

Marketplace price efficiency

The degree to which the prices of assets reflect the available marketplace
information. Marketplace price efficiency is sometimes estimated as the difficulty faced by active
management of earning a greater return than passive management would, after adjusting for the risk
associated with a strategy and the transactions costs associated with implementing a strategy.

Mean-variance analysis

Evaluation of risky prospects based on the expected value and variance of possible outcomes.

Mean-variance criterion

The selection of portfolios based on the means and variances of their returns. The
choice of the higher expected return portfolio for a given level of variance or the lower variance portfolio for
a given expected return.

Mean-variance efficient portfolio

Related: Markowitz efficient portfolio

Minimum-variance frontier

Graph of the lowest possible portfolio variance that is attainable for a given
portfolio expected return.

Minimum-variance portfolio

The portfolio of risky assets with lowest variance.
Minority interest An outside ownership interest in a subsidiary that is consolidated with the parent for
financial reporting purposes.

Portfolio variance

Weighted sum of the covariance and variances of the assets in a portfolio.

Pricing efficiency

Also called external efficiency, a market characteristic where prices at all times fully
reflect all available information that is relevant to the valuation of securities.

Semi-strong form efficiency

A form of pricing efficiency where the price of the security fully reflects all
public information (including, but not limited to, historical price and trading patterns). Compare weak form
efficiency and strong form efficiency.

Serial covariance

The covariance between a variable and the lagged value of the variable; the same as
autocovariance.

Strong-form efficiency

Pricing efficiency, where the price of a, security reflects all information, whether or
not it is publicly available. Related: Weak form efficiency, semi strong form efficiency

Variance

A measure of dispersion of a set of data points around their mean value. The mathematical
expectation of the squared deviations from the mean. The square root of the variance is the standard deviation.

Variance minimization approach to tracking

An approach to bond indexing that uses historical data to
estimate the variance of the tracking error.

Variance rule

Specifies the permitted minimum or maximum quantity of securities that can be delivered to
satisfy a TBA trade. For Ginnie Mae, Fannie Mae, and Feddie Mac pass-through securities, the accepted
variance is plus or minus 2.499999 percent per million of the par value of the TBA quantity.

Weak form efficiency

A form of pricing efficiency where the price of the security reflects the past price and
trading history of the security. In such a market, security prices follow a random walk. Related: Semistrong
form efficiency, strong form efficiency.

Non-production overhead

A general term referring to period costs, such as selling, administration and financial expenses.

Overhead

Any cost other than a direct cost – may refer to an indirect production cost and/or to a non-production expense.

Overhead allocation

The process of spreading production overhead equitably over the volume of production of goods or services.

Overhead rate

The rate (often expressed per hour) applied to the time taken to produce a product/service, used to allocate production overheads to particular products/services based on the time taken. May be calculated on a business-wide or cost centre basis.

Production overhead

A general term referring to indirect costs.

Variance analysis

A method of budgetary control that compares actual performance against plan, investigates the causes of the variance and takes corrective action to ensure that targets are achieved.

overhead costs

overhead generally refers to indirect, in contrast to direct,
costs. Indirect means that a cost cannot be matched or coupled in any
obvious or objective manner with particular products, specific revenue
sources, or a particular organizational unit. Manufacturing overhead
costs are the indirect costs in making products, which are in addition to
the direct costs of raw materials and labor. Manufacturing overhead
costs include both variable costs (electricity, gas, water, etc.), which vary
with total production output, and fixed costs, which do not vary with
increases or decreases in actual production output.

Variance

The weighted average of the squared deviations from the
expected value

applied overhead

the amount of overhead that has been assigned to Work in Process Inventory as a result of productive activity; credits for this amount are to an overhead account

budget variance

the difference between total actual overhead
and budgeted overhead based on standard hours allowed
for the production achieved during the period; computed
as part of two-variance overhead analysis; also
referred to as the controllable variance

controllable variance

the budget variance of the two variance approach to analyzing overhead variances

efficiency

a measure of the degree to which tasks were performed
to produce the best yield at the lowest cost from
the resources available; the degree to which a satisfactory
relationship of outputs to inputs occurs

fixed overhead spending variance

the difference between the total actual fixed overhead and budgeted fixed overhead;
it is computed as part of the four-variance overhead analysis

fixed overhead volume variance

see volume variance

labor efficiency variance

the number of hours actually worked minus the standard hours allowed for the production
achieved multiplied by the standard rate to establish
a value for efficiency (favorable) or inefficiency (unfavorable)
of the work force

labor mix variance

(actual mix X actual hours X standard rate) - (standard mix X actual hours X standard rate);
it presents the financial effect associated with changing the
proportionate amount of higher or lower paid workers in production

labor rate variance

the actual rate (or actual weighted average rate) paid to labor for the period minus the standard rate multiplied by all hours actually worked during the period;
it is actual labor cost minus (actual hours X standard rate)

labor yield variance

(standard mix X actual hours X standard rate) - (standard mix X standard hours X standard rate);
it shows the monetary impact of using more or fewer total hours than the standard allowed

manufacturing cycle efficiency (MCE)

a ratio resulting from dividing the actual production time by total lead time;
reflects the proportion of lead time that is value-added

material price variance

total actual cost of material purchased
minus (actual quantity of material  standard
price); it is the amount of money spent below (favorable)
or in excess (unfavorable) of the standard price for the
quantity of materials purchased; it can be calculated based
on the actual quantity of material purchased or the actual
quantity used

material quantity variance

(actual quantity X standard price) - (standard quantity allowed  standard price);
the standard cost saved (favorable) or expended (unfavorable)
due to the difference between the actual quantity
of material used and the standard quantity of material
allowed for the goods produced during the period

material mix variance

(actual mix X actual quantity X standard price) - (standard mix X actual quantity X standardprice);
it computes the monetary effect of substituting a nonstandard mix of material

material yield variance

(standard mix X actual quantity X standard price) - (standard mix X standard quantity X standard price);
it computes the difference between the
actual total quantity of input and the standard total quantity
allowed based on output and uses standard mix and
standard prices to determine variance

noncontrollable variance

the fixed overhead volume variance;
it is computed as part of the two-variance approach to overhead analysis

overapplied overhead

a credit balance in the overhead account
at the end of a period; when the applied overhead
amount is greater than the actual overhead that was incurred

overhead

any factory or production cost that is indirect to
the product or service; it does not include direct material
or direct labor; any production cost that cannot be directly
traced to the product

overhead application rate

see predetermined overhead rate

overhead spending variance

the difference between total actual overhead and total budgeted overhead at actual
hours; it is computed as part of three-variance analysis; it
is equal to the sum of the variable and fixed overhead
spending variances

predetermined overhead rate

an estimated constant charge per unit of activity used to assign overhead cost to production or services of the period; it is calculated by dividing total budgeted annual overhead at a selected level of volume or activity by that selected measure of volume or activity; it is also the standard overhead application rate

standard overhead application rate

a predetermined overhead rate used in a standard cost system; it can be a separate variable or fixed rate or a combined overhead rate

total overhead variance

the difference between total actual overhead and total applied overhead; it is the amount of underapplied or overapplied overhead

total variance

the difference between total actual cost incurred
and total standard cost for the output produced during
the period

underapplied overhead

a debit balance in the overhead account at the end of a period; when the applied overhead amount is less than the actual overhead that was incurred

variable overhead spending variance

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

variance

a difference between an actual and a standard or
budgeted cost; it is favorable if actual is less than standard
and is unfavorable if actual is greater than standard

variance analysis

the process of categorizing the nature (favorable or unfavorable) of the differences between standard and actual costs and determining the reasons for those differences

volume variance

a fixed overhead variance that represents
the difference between budgeted fixed overhead and fixed
overhead applied to production of the period; is also referred
to as the noncontrollable variance

Covariance

A measure of the degree to which returns on two assets move in
tandem. A positive covariance means that asset returns move together; a
negative covariance means they vary inversely.

Variance

The dispersion of a variable. The square of the standard deviation.

Direct materials mix variance

The variance between the budgeted and actual mixes of
direct materials costs, both using the actual total quantity used. This variance isolates
the unit cost of each item, excluding all other variables.

Factory overhead

All the costs incurred during the manufacturing process, minus the
costs of direct labor and materials.

Fixed overhead

That portion of total overhead costs which remains constant in size
irrespective of changes in activity within a certain range.

Labor efficiency variance

The difference between the amount of time that was budgeted
to be used by the direct labor staff and the amount actually used, multiplied
by the standard labor rate per hour.

Labor rate variance

The difference between the actual and standard direct labor rates
actually paid to the direct labor staff, multiplied by the number of actual hours
worked.

Materials price variance

The difference between the actual and budgeted cost to
acquire materials, multiplied by the total number of units purchased.

Materials quantity variance

The difference between the actual and budgeted quantities
of material used in the production process, multiplied by the standard cost per
unit.

Production yield variance

The difference between the actual and budgeted proportions
of product resulting from a production process, multiplied by the standard unit cost.

Selling price variance

The difference between the actual and budgeted selling price for
a product, multiplied by the actual number of units sold.

semi-strong-form efficiency

Market prices reflect all publicly available information.

strong-form efficiency

Market prices rapidly reflect all information that could in principle be used to determine true value.

variance

Average value of squared deviations from mean. A measure of volatility.

weak-form efficiency

Market prices rapidly reflect all information contained in the history of past prices.

Efficiency

The ability to produce the things most wanted at the least cost.

Efficiency Wage

Wage that maximizes profits.

Market Efficiency

See efficiency.

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