In fact it is generally less expensive to produce one item in excess of the current demand than it is to start-stop the production process. The excess is then placed in store to meet future demand.
Kwa kweli ni kwa ujumla chini ya gharama kubwa ya kuzalisha bidhaa moja kwa ziada ya mahitaji ya sasa kuliko ilivyo kwa kuanza kuacha mchakato wa uzalishaji. ziada ni kisha kuwekwa katika kuhifadhi ili kukidhi mahitaji ya baadaye.