Affiliation: | (1) University of North Carolina, Chapel Hill, NC, USA;(2) The Business School, University of Hertfordshire, De Havilland Campus, Hatfield, Hertfordshire, AL10 9AB, UK;(3) Northwestern University, Evanston, IL, USA;(4) University of Southern Denmark, Odense, Denmark;(5) University of Freiburg, Freiburg, Germany |