nd macroeconomic stability: Switzerland's =irtschaftsring," 82. 6 EFTA_R1_01773969 EFTA02591471 (121 Swiss Federal Office of =tatistics (OFS), "Recensement federal des enterprises," =ccessed August 18, 2011, http://www.bfs.admin.ch/bfs/portal/fr/index/dienstleistungen/g=ostat/datenbeschreibung/betriebsz