Chapter 14 – Operational Performance Measurement: Sales, Direct-Cost Variances, and the Role of Nonfinancial
Performance Measures
Direct labor efficiency (usage) variances could be caused by: using a different
mix of labor for the task at hand, as compared to the standard mix of labor;
poorly supervised employees; installation of new equipment; machinery and
equipment not maintained according to schedule (which could cause excess
waste and labor-hour consumption); inappropriate labor-hour standard (e.g., the
materials caused excess labor-hour consumption.
One particularly interesting situation that students should be aware of is the
potential for overemphasizing labor efficiency variances when labor is essentially
a short-term fixed cost. In this case, the labor efficiency variance can be largely
attributable to lack of orders (i.e., lack of sales demand), not worker efficiency.
For this reason, some writers suggest that when labor is essentially a short-term
fixed cost, that the labor efficiency variance not be reported for motivation and
control purposes. Otherwise, workers (and managers) may be motivated to
produce excess inventory which in turn would run counter to the JIT philosophy
that the firm may be embracing.
14-7 The answer depends on how overtime premium is treated by the accounting
prospects of the firm. In short, the labels “favorable” and “unfavorable” are
defined solely on the basis of the impact of the variance (positive or negative) on
short-term operating profit. It is a value judgment as to whether such variances
are positive or negative.
14-8 Of the three, for motivation and control purposes, standards based on the
average of recent historical performance are the least desirable. Many firms
prefer to use standards based on attainable performance in their standard cost
14-3