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Mean-variance criterion |
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Definition of Mean-variance criterionMean-variance criterionThe selection of portfolios based on the means and variances of their returns. The
Related Terms:Arithmetic average (mean) rate of returnArithmetic mean return. Arithmetic mean returnAn average of the subperiod returns, calculated by summing the subperiod returns CovarianceA statistical measure of the degree to which random variables move together. Geometric mean returnAlso called the time weighted rate of return, a measure of the compounded rate of MeanThe expected value of a random variable. Mean of the sampleThe arithmetic average; that is, the sum of the observations divided by the number of Mean-variance analysisEvaluation of risky prospects based on the expected value and variance of possible outcomes. Mean-variance efficient portfolioRelated: Markowitz efficient portfolio Minimum-variance frontierGraph of the lowest possible portfolio variance that is attainable for a given Minimum-variance portfolioThe portfolio of risky assets with lowest variance. Portfolio varianceWeighted sum of the covariance and variances of the assets in a portfolio. Regression toward the meanThe tendency for subsequent observations of a random variable to be closer to its mean. Serial covarianceThe covariance between a variable and the lagged value of the variable; the same as VarianceA measure of dispersion of a set of data points around their mean value. The mathematical Variance minimization approach to trackingAn approach to bond indexing that uses historical data to Variance ruleSpecifies the permitted minimum or maximum quantity of securities that can be delivered to Variance analysisA 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. VarianceThe weighted average of the squared deviations from the budget variancethe difference between total actual overhead controllable variancethe budget variance of the two variance approach to analyzing overhead variances fixed overhead spending variancethe difference between the total actual fixed overhead and budgeted fixed overhead; fixed overhead volume variancesee volume variance labor efficiency variancethe number of hours actually worked minus the standard hours allowed for the production labor mix variance(actual mix X actual hours X standard rate) - (standard mix X actual hours X standard rate); labor rate variancethe 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; labor yield variance(standard mix X actual hours X standard rate) - (standard mix X standard hours X standard rate); material price variancetotal actual cost of material purchased material quantity variance(actual quantity X standard price) - (standard quantity allowed standard price); material mix variance(actual mix X actual quantity X standard price) - (standard mix X actual quantity X standardprice); material yield variance(standard mix X actual quantity X standard price) - (standard mix X standard quantity X standard price); noncontrollable variancethe fixed overhead volume variance; overhead efficiency variancethe difference between total budgeted overhead at actual hours and total budgeted overhead spending variancethe difference between total actual overhead and total budgeted overhead at actual total overhead variancethe difference between total actual overhead and total applied overhead; it is the amount of underapplied or overapplied overhead total variancethe difference between total actual cost incurred variable overhead efficiency variancethe difference between budgeted variable overhead based on actual input activity and variable overhead applied to production variable overhead spending variancethe difference between total actual variable overhead and the budgeted amount of variable overhead based on actual input activity variancea difference between an actual and a standard or variance analysisthe process of categorizing the nature (favorable or unfavorable) of the differences between standard and actual costs and determining the reasons for those differences volume variancea fixed overhead variance that represents CovarianceA measure of the degree to which returns on two assets move in Mean a. A number that typifies a set of numbers, such as a geometric mean VarianceThe dispersion of a variable. The square of the standard deviation. Direct materials mix varianceThe variance between the budgeted and actual mixes of Labor efficiency varianceThe difference between the amount of time that was budgeted Labor rate varianceThe difference between the actual and standard direct labor rates Materials price varianceThe difference between the actual and budgeted cost to Materials quantity varianceThe difference between the actual and budgeted quantities Production yield varianceThe difference between the actual and budgeted proportions Selling price varianceThe difference between the actual and budgeted selling price for varianceAverage value of squared deviations from mean. A measure of volatility.
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