Key points are not available for this paper at this time.
Lundmark, L. J. T., P. Fredman, and K. Sandell. 2010. National parks and protected areas and the role for employment in tourism and forest sectors: a Swedish case. Ecology and Society 15(1): 19. https://doi.org/10.5751/ES-03175-150119
Lundmark et al. (Fri,) studied this question.