
From Risk Analysis to Adversarial Risk Analysis 321
investment of 75,000 USD. We display in the middle and right columns in
Table 15.5 similar results to those obtained when the evasion proportion was
3%. As we can observe, when facing higher evasio n proportions, the operator
needs to make higher investments in order to attain better expected utili-
ties. When the evasion proportion becomes 12%, hiring an inspector would
become crucial, as they have legal authority to impose fines, which represent
the largest part of the operator’s income. However, we found also that these
results were quite sensitive to variations on the proportion of tickets inspected ...