“…For example, it contrasts with the high quality of Swiss exports (Credit Suisse Economic Research, ; Hallak and Schott, ), the very good reputation of Switzerland's educational system, the economy's high expenditure for R&D, and the fact that Switzerland is generally ranked among the most innovative and most competitive countries worldwide (Arvanitis and Hollenstein, ; IMD, ). Several economists have thus searched for simpler explanations for the “Swiss productivity puzzle”—notably by questioning the available data (Kohli, ; Abrahamsen et al ., 2005a, 2005b; Hartwig, , ).…”