Estimating Productivity Loss Cost according to Severity of Vehicle Crash Injury

Table 6

Compare with Double-Hurdle versus Tobit models.

Scenario	test result	Tobit model WTP	Double-Hurdle model WTP
Minor injury		2,865	1,940
Moderate injury		5,752	4,781
Severe injury		22,591	19,985
Disability		108,405	45,513
Death		60,185	47,129

Estimated WTP excluding 0 (US$).