1. knowledge-based industries are defined as: high-technology industries (ISIC codes: 2423 + 30 + 32 + 33 + 353), medium-high-technology industries (24 excl. 2423 + 29 + 31 + 34 + 352 + 359), post and communications (64), finance and insurance (65-67) and business services excluding real estate;Technology and Industry Outlook,2002