Number of Illnesses or Diseases

WTP for reduction in the number of illness symptom days due to bushfire smoke, California (defensive behaviour approach)

Fire
Calculated WTP Marginal Change being measured Recommendations
$134.28 AUD

WTP for a reduction in an illness symptom day caused by wildfire smoke

Useful for NH BT - especially fire context - be aware of/adjust for population differences

WTP Details

Hazard types identified
Fire
Specific Value Type measured
Illness or disease
Currency Year - original study
WTP estimate - original study value
$86.87 per person per sympton day
Currency - original study
USD
WTP converted to $AU in original year from the study
$108.00 AUD
WTP measure
Mean
95% confidence interval (upper)
$443.26 AUD
95% confidence interval (lower)
$76.56 AUD
Other variables that significantly explain WTP

Smelled smoke, symptoms, gender, married, age, education, employment, location

Study Details

Value type applicable
Physical Health
Study conducted in the context of a natural hazard?
Yes
Study quality
High
Benefits transfer applicability
Average
Recommendations

Useful for NH BT - especially fire context - be aware of/adjust for population differences

Methods

Data collection method used
Defensive behaviour model
Analysis model
Probit regression model
Modelled number of individuals
377
Modelled number of observations
377

Sample Characteristics

Country/region studied
Los Angeles County, California
Country of source studies
USA
Sampled population
Duarte, Monrovia, Sierra Madre, Burbank, Glendora
Range in years of data
2009
Mean sample age
59.11
Percent Male
60
Percent Female
40
Mean sample income
$83,520
Income units
USD/year

Publication

Valuing Morbidity from Wildfire Smoke Exposure: A Comparison of Revealed and Stated Preference Techniques

Richardson, L., Loomis, J.B., and P.A. Champ. 2013. Valuing Morbidity from Wildfire Smoke Exposure: A Comparison of Revealed and Stated Preference Techniques. Land Economics. 89 (1): 76-100
Citation
Richardson, et al. 2013
Authors
Richardson, L., Loomis, J.B., Champ, P.A.
Year published
Peer reviewed?
Yes
Journal name
Land Economics

Additional information

Notes on this study

Paper compares traditional cost of illness valuation methods with defensive behavior and CVM WTPs. Paper utilizes a form of revealed preference method referred to as the 'defensive behaviour method'

WTP for reduction in the number of illness symptom days due to bushfire smoke, California (contingent valuation approach)

Fire
Calculated WTP Marginal Change being measured Recommendations
$146.72 AUD

WTP for a reduction in an illness symptom day caused by wildfire smoke

Useful for NH BT - especially fire context - be aware of/adjust for population differences

WTP Details

Hazard types identified
Fire
Specific Value Type measured
Illness or disease
Currency Year - original study
WTP estimate - original study value
$95.03 per person per sympton day
Currency - original study
USD
WTP converted to $AU in original year from the study
$118.00 AUD
WTP measure
Mean
95% confidence interval (upper)
$610.42 AUD
95% confidence interval (lower)
$22.78 AUD
Other variables that significantly explain WTP

Education, pre-exisiting health condition, health insurance, location

Study Details

Value type applicable
Physical Health
Study conducted in the context of a natural hazard?
Yes
Study quality
High
Benefits transfer applicability
Average
Recommendations

Useful for NH BT - especially fire context - be aware of/adjust for population differences

Methods

Data collection method used
Contingent valuation
Analysis model
Probit regression model
Modelled number of individuals
157
Modelled number of observations
157

Sample Characteristics

Country/region studied
Los Angeles County, California
Country of source studies
USA
Sampled population
Duarte, Monrovia, Sierra Madre, Burbank, Glendora
Range in years of data
2009
Mean sample age
59.11
Percent Male
60
Percent Female
40
Mean sample income
$83,520
Income units
USD/year

Publication

Valuing Morbidity from Wildfire Smoke Exposure: A Comparison of Revealed and Stated Preference Techniques

Richardson, L., Loomis, J.B., and P.A. Champ. 2013. Valuing Morbidity from Wildfire Smoke Exposure: A Comparison of Revealed and Stated Preference Techniques. Land Economics. 89 (1): 76-100
Citation
Richardson, et al. 2013
Authors
Richardson, L., Loomis, J.B., Champ, P.A.
Year published
Peer reviewed?
Yes
Journal name
Land Economics

Additional information

Notes on this study

Paper compares traditional cost of illness valuation methods with defensive behavior and CVM WTPs.