A Proposal for Standardisation of the Learning or Start‐up Curve

Use of the cumulative average cost start‐up formula as the standard (instead of the traditional incremental cost or unit cost formula) allows the derivation of cumulative total costs and marginal unit costs. Accurate incremental costs can also be obtained by taking the difference between cumulative total costs at the upper and lower points of the increment. Furthermore, look‐up tables (commonly used with the traditional approach) are no longer needed.