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and Solomon W. Polachek -- 3. Performance: The output/input ratio- Thijs ten Raa -- 4. R&D, innovation and productivity … Bhattacharyya, Levent Kutlu, and Robin C. Sickles -- 14. Aggregation of individual efficiency measures and productivity indices … Kenjegalieva, Robin C Sickles, and Thomas Weyman-Jones -- 18. Productivity indexes and national statistics: Theory, methods and …