Response to Review Article by Bert Balk on Measurement of Productivity and Efficiency: Theory and Practice

[...]we tried to convince the publisher that it would be fairer to mention all co-authors in the author index but they did not modify their editorial policy. [...]the material covered in Chapter 6 - on Functional Forms-also has a very different level of detail and coverage than what has appeared in earlier books, whether Balk (1998) or Färe and Primont (1995) or any other of which we are aware. [...]yet not least, we believe that for any book, there is still always room for improvements-at least because the knowledge discoveries go on and thus material can become dated. [...]we enthusiastically encourage productivity scholars to continue developing new and refining old theoretical and empirical approaches to the measurement of productivity and efficiency.