1. a Department of Management and International Business , Centre for Ergonomics and Occupational Safety and Health , Massey University at Albany, Auckland, New Zealand
2. b Centre for Human Factors and Ergonomics , Forest Research , Auckland, New Zealand
3. c Department of Human Resource Management , Centre for Ergonomics and Occupational Safety and Health, Massey University , Palmerston North, New Zealand
4. d Centre for Human Factors and Ergonomics, Forest Research , Rotorua, New Zealand