A phenomenon that shows up repeatedly in a variety of production operations is the learning curve. Essentially, the learning curve (also called the experience curve, or the progress curve) is the observation that production efficiency tends to improve at a fairly regular rate - every doubling of production volume reduces inputs (and typically costs) by some constant fraction. It was first described in a

## Where are my damn learning curves?

A phenomenon that shows up repeatedly in a variety of production operations is the learning curve. Essentially, the learning curve (also called the experience curve, or the progress curve) is the observation that production efficiency tends to improve at a fairly regular rate - every doubling of production volume reduces inputs (and typically costs) by some constant fraction. It was first described in a