1. Institute for Social Research, School of Natural Resources and Environment, University of Michigan, 426 Thompson Street, Ann Arbor, MI 48106, USA
2. School of Natural Resources and Environment, University of Michigan, Dana Building, 440 Church Street, Ann Arbor, MI 48109-1041, USA
3. School of Business, University of Chile, Diagonal Paraguay 257, Of. 1202a, Santiago, Chile
4. Department of Landscape Architecture and Urban Planning, Texas A&M University, 311-A Langford Architecture Center, College Station, TX 77843-3137, USA