experience curve
Definition
Graph that depicts the 'experience effect' (increases in productivity) as reflected in reduced average and marginal costs. Unlike the learning curve, an experience curve takes into account both fixed and variable costs.

The experience curve is a form of learning curve that makes use of more information in order to properly assess the status of a given situation. First described in 1960 by Bruce Henderson, an experience curve is used to examine the relationship between production costs and production quantity. The general idea behind the curve is that as the actions necessary in the production process are repeated over time, the cost of performing those actions will decrease.
Unlike the basic learning curve, which tends to focus more on the labor aspect, the experience curve looks at a broader range of elements that impact the production process. This includes elements like marketing strategies and cost, adminstration, the cost of distribution, and the costs associated with the manufacturing, such as the cost of the raw materials. This more detailed approach can make it much easier to determine if the cumulative cost of producing each unit is in fact falling. If that is not the case, the shape of the curve may help identify areas where improvement can be made and trigger that trend of decreasing cost.
For example, plotting the experience curve may help identify ways to minimize slow spots in the production process, and thus increase production and lower the overall cost per unit. For example, if a manufacturing process requires that machinery be stopped for twenty minutes as a new lot of raw materials is loaded into the machine, the solution may be to purchase larger lots. This change makes it possible to load the machine to full capacity and allow it to run longer before more materials are required. If this change in the process results in reducing the downtime by 25%, then the same type of tasks ultimately produce more goods for sale