J. P. Davidson 
Productivity and Economic Incentives [PDF ebook] 

As the controversies surrounding performance related pay have demonstrated, reward management is a key issue. Collecting the results of “fieldwork“ investigations in factories and retail outlets, this book measures output before and after a change in methods of remuneration. The link between productivity and stress is explored and conclusions drawn.
An introductory chapter, by the eminent economist P. Sargant Florence summarises previously published productivity studies.