This information is part of the Business Simulation Library (BSL).
The output y describes the input that is needed to produce one unit. The experience curve describes the often observed empirical trend, that with every doubling in cumulated production, the effort or cost needed per unit (e.g., unit cost) will shrink by a constant percentage (
learningRate), see Louwen and Subtil Lacerda  for an introduction.
The output y is obtained by the following formula:
hasCumulatedInput = truethe input u is assumed to be the cumulated value of production (N) and the initial production (N_0) is initialized with the initial value of u (unless
u < 1, in which case the initial production is initialized to 1).
hasCumulatedInput = falsethe input u is assumed to be the current rate of production which will be accumulated starting with
N_0 = 1.
costLimit) can be given. It will be either a floor (
learningRate >= 0) or a ceiling (
learningRate < 0).
Description: Inial value of cost, time, defects etc. being affected by experience
Description: Learning rate (LR) stating the relative reduction for each doubling of cumulated production
Description: Minimum or maximum cost level (depending on sign of learning rate), which is not to be exceeded
Description: = true, if input u is cumulated production value; false, if u is the current production value
Description: = true, if output y will not be below the given limit or exceed it
Description: Accumulated output driving learning
Description: Output generation
Description: Reference level of output
Description: Total effect of experience
Description: Cumulated output driving learning if input is already cumulated value
Description: Binary logarithm of progress ratio
Description: Actual level for influenced variable
Description: Initial level of influenced variable
Description: Minimum cumulated production
Description: Do not exceed maximum value
Description: Do not go below minimum value