A global perspective on current changes in horticulture

My new office mate found an interesting paper today, about current dynamics in the global horticultural industry that may well have implications for invasives:
Review
Structural change in the international horticultural industry: Some implications for plant health
K. Dehnen-Schmutza, O. Holdenriederb, M. J. Jegerc and M. Pautassoc
Scientia Horticulturae Volume 125, Issue 1, 31 May 2010, Pages 1-15
doi:10.1016/j.scienta.2010.02.017