The bench mark to measure potential output is the data envelopment frontier determined by the best practice production units, which in the language of Data Envelopment Analysis (DEA) are called Decision Making Units (DMUs).In this book Chapter-I contains about the measurement of technical change in terms of total factor productivity growth and the contribution inputs growth to output growth. Chapter-II deals three important approaches namely, Parametric, Non-Parametric and Accounting approaches have been discussed for the measurement of technical change and technical progress. Chpater-III...