This chapter defines the concepts of this Handbook - performance, productivity, efficiency, and profitability - and … discusses the interrelations. The most prominent performance measure, total factor productivity growth, is grounded in activity … a component of the Farrell efficiency measure, but it is the other way round: The sway of Debreu's coefficient is far …

Here, we consider the problem of aggregation of efficiency and productivity indices. We will summarize some of the … existing results and will derive new results for aggregation of Hicks-Moorsteen productivity indices. …