A Reformulation of the Cost Plus Net Value Change (C+NVC) Model of Wildfire Economics
The Cost plus Net Value Change (C+NVC) model provides the theoretical foundation for wildland fire economics and provides the basis for the National Fire Management Analysis System (NFMAS). The C+NVC model is based on the earlier least Cost plus Loss model (LC+L) expressed by Sparhawk (1925). Mathematical and graphical analysis of the LC+L model illustrates two errors in model formulation. First, suppression is incorrectly modeled as a model output. Second, suppression and primary protection are incorrectly modeled as negatively correlated. These errors are shown to be perpetuated by the contemporary C+NVC model and to have serious implications for the model's capacity to correctly identify the most efficient level of fire management expenditure. A corrected graphical representation of the C+NVC model is presented, which allows the most efficient level of fire management expenditure to be correctly identified. FOR. SCI. 49(2):318–323.
Keywords: Economics; cost plus net value change; environmental management; fire; forest; forest management; forest resources; forestry; forestry research; forestry science; natural resource management; natural resources
Document Type: Miscellaneous
Affiliations: 1: Research Forester Pacific Northwest Research Station, USDA Forest Service, Portland, OR, 2: Professor Department of Forest Science, Colorado State University, Fort Collins, CO, 80523, Phone: (503)808-2043 [email protected]
Publication date: 01 April 2003