1 The Effect of HRM Practices and R&D Investment on Worker Productivity. Introduction: As the pace of technological change has quickened and global competition has shortened product life cycles, firms have had to rethink their technology investment strategies and their human resource management practices in order to remain competitive | National Bureau of Economie Research The Analysis of Firms and Employees QUANTITATIVE AND QUALITATIVE APPROACHES Edited by Stefan Bender Julia Lane Kathryn L. Shaw Fredrik Andersson and Till Von Wachter The Analysis of Firms and Employees A National Bureau of Economic Research Conference .