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. 2015 Feb 4;10(2):e0116846. doi: 10.1371/journal.pone.0116846

Table 2. Ranges of parameter values used in simulations.

Parameter Value range/estimation Comments
d(deforestation in base year) Fixed for each grid cell based on observed deforestation in the years 2002–2004 prior to policy change in Brazil (see Table 1) See methodological description in S2 Appendix
TC (inspection cost of visiting first deforestation patch in i) Fixed for each grid cell estimated based on cost data from IBAMA and travel time map as documented in Börner et al. (2014)
TC’ (within grid cell inspection costs) Fixed for each grid cell as average cost of travelling through half of the cell
nd (number of additional deforestation patches per grid cell) Estimated as a linear function of total deforestation per grid cell from historical deforestation data (0.035 patches per hectare)
B (enforcement budget) 0 to BRL 50,000,000 - BRL 1 ∼ USD 0,45 (July 2014: http://www.oanda.com) IBAMA’s 2004 operational budget for “environmental protection” at the national level was BRL 62 million. According to interviews with the agency, most of this budget is allocated to the Amazon region.
F (per hectare disincentive) BRL 0–5000 BRL 5000 per hectare was the value of a fine for violating the forest retention standard according to the 1998 version of Law 9.605
PES(per hectare incentive) BRL 0–5000 No established value yet at national level