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often marked "large."
Another problem which plagues the consumer is
the pervasive presence, on supermarket shelv.es, of decep-
tively shaped boxes, misleading pictures, and promotional
gimmicks that promise nonexistant savings. The former
part of the problem, deceptively shaped packages, involves
the use of various containers of shapes, sizes, and dimen-
sional proportions which give an exaggerated impression of
the quantity within. This is common in potato chip packag-
ing for example.
Further, plastic jars of hair pomade often look
as if they would hold two ounces but, because of hollow
sides and a hollow bottom, actually hold only one ounce.
Another phase of this problem is the practice
of letting air occupy a significant part of the container.
This prevalent practice is known as "slack fill" or "slack"
Nonfunctional air space creates the appearance of more
bulk than actually exists, and the consumer pays product
prices for nothing but air. The detergent industry plys
this practice.
A final phase of this particular problem is