Impact Assessment & Compensation

We specialize in social and cultural impact assessment. Like all impact assessments, we will undertake the essential work to understand potential change, and understand it in terms of magnitude, extent, duration and, ultimately, the significance of these impacts to

the values o those experiencing the change. A range of scenarios help understand bot the potential impacts but also mitigation and avoidance options. In many cases we will take the important next steps of translating these net changes (benefits – losses) to both market and non-market values into dollar terms – a single comparable metric. This helps comunicate the magnitude and significance of these impacts on those affected, develop better options, including more appropriate and defensible compensation.

This type of work is requires a participatory approach, working with those experts (e.g., scientists, Elders, engineers, hunters) who are able to determine the impacts and those affected to determine their relative significance. We use use well-established evaluation tools and stated preference methods, based on decision analysis and multi-attribute utility theory (MAUT). These methods have been broadly applied and accepted by regulatory agencies in Canada, the United States and internationally.

We have served as expert witnesses and supported the negotiation of settlement agreements.

For a copy of our Non-Market Valuation brochure, Click here.

Interview: To hear William Trousdale’s conversation with CBC on ‘non-market valuation’ Click here.

 Interested in training or capacity building? Contact us.

Guidebooks, Toolkits and Publications

Values-Based Measures of Impacts to Indigenous Health
Robin G., D. Easterling, N. Kaechele, W. Trousdale
Risk Analysis, Vol. 36, No. 8, 2016. DOI: 10.1111/risa.12533

Compensating Aboriginal Cultural losses: An Alternative Approach to Assessing Environmental Damages
Gregory, R, and W Trousdale. 2009.
Journal of Environmental Management 90 (8): 2469–79.

Resource Compensation and Negotiation Support in an Aboriginal Context: Using Community-based Multi-attribute Analysis to Evaluate Non-market Losses
McDaniels, TL, and W Trousdale. 2005.
Ecological Economics 55 (2): 173–86.

Appropriate Tourism Impact Assessment: A Case Study of Kaniki Point Resort Palawan, Philippines
Trousdale, William.
Hosts and Guests Revisited: Tourism Issues of the 21st Century.
Editors: Valene L. Smith and Maryann Brent. 2001


2011 Planning Institute of B.C. Award for Excellence in Research and New Directions in Planning
William Trousdale, Dr. Robin Gregory and Dr. Tim McDaniels were recognized for their work on non-market valuation approaches to cultural losses. This work developed and refined a new approach to help aboriginal communities address the issue of environmental damages, supporting negotiations and mediations as well as being tested in the courts.