Table 1.
Variable definitions.
| Name of the variable | Variable description |
|---|---|
| Response variable | |
| Earthquake insurance uptake | = 1 if the respondent has his/her residence/property insured against earthquake damage, 0 o/w |
| Explanatory variables | |
| Socio-demographics | |
| Age | Age of the respondent (years) |
| Gender | Gender of the respondent (= 1 if male, 0 o/w) |
| Ethnicity: Hispanic | = 1 if Yes for being Hispanic, Latino or of Spanish origin, 0 o/w |
| Race: White | = 1 if Yes for being White, 0 o/w |
| Race: African American or Black | = 1 if Yes for being Black or African-American, 0 o/w |
| Race: American Indian | = 1 if Yes for being American Indian, 0 o/w |
| Race: Asian | = 1 if Yes for being Asian, 0 o/w |
| Belongs to two or more races | = 1 if Yes for belonging to two or more races, 0 o/w |
| Democrat | = 1 if respondent identified as a Democrat, 0 o/w |
| Republican | = 1 if respondent identified as a Republican, 0 o/w |
| Independent | = 1 if respondent identified as belonging to the Independent party, 0 o/w |
| Years lived in Oklahoma | The period in years the respondent has spent living in Oklahoma |
| Rents the property | = 1 if the respondent’s residence is rented, 0 o/w |
| Education: less than high school | = 1 if the respondent’s maximum education level is less than high school, 0 o/w |
| Education: high school | = 1 if the respondent’s maximum education level is high school, 0 o/w |
| Education: associate degree | = 1 if the respondent’s maximum education level is an Associate degree, 0 o/w |
| Education: undergraduate degree | = 1 if the respondent’s maximum education level is an undergraduate degree, 0 o/w |
| Education: graduate degree | = 1 if the respondent’s maximum education level is a Master’s degree, 0 otherwise |
| Education: professional degree | = 1 if the respondent’s maximum education level is a Professional degree e.g. MBA, 0 o/w |
| Incomeless$25,000 | = 1 if the respondent’s income/year is less than $25,000, 0 o/w |
| Inc$25000_$49,999 | = 1 if the respondent’s income/year is from $25,000 to $49,999, 0 o/w |
| Inc$50000_$74,999 | = 1 if the respondent’s income/year is from $50,000 to $74,999, 0 o/w |
| Inc$75000_$99,999 | = 1 if the respondent’s income/year is from $75,000 to $99,999, 0 o/w |
| Inc$10000_$124,999 | = 1 if the respondent’s income/year is from $100,000 to $124,999, 0 o/w |
| Socio-demographics | |
| Inc$125000_above | = 1 if the respondent’s income/year is upwards of $125,000, 0 o/w |
| Respondents’ attitudes toward earthquakes in Oklahoma | |
| No earthquake-related damage | = 1 if the house/property not damaged by earthquakes from the year 2011, 0 o/w |
| Earthquake-related damage is minor | = 1 if the house/property’s had earthquake-related cracks since 2011, 0 o/w |
| Earthquake-related damage is moderate | = 1 if the house/property’s walls or brickwork had earthquake-related damage by falling since the year 2011, 0 o/w |
| Earthquake-related damage is major | = 1 if the house/property’s foundation or rockwork masonry had earthquake-related damage since the year 2011, 0 o/w |
| Other earthquake-related damage | = 1 if the house/property had earthquake-related damage of other form since the year 2011, 0 o/w |
| Abrupt stoppage of wastewater injection | = 1 if the respondent wants wastewater injection should be stopped abruptly, 0 o/w |
| Believes wastewater injection be stopped following science | = 1 if the respondent wants wastewater injection should be abolished following scientific findings, 0 o/w |
| Believes the main source of revenue to the state are the oil and gas companies | = 1 if the respondent believes that the oil and gas industry is the major source of revenue for the state, 0 o/w |
| Believes oil and gas companies are the main source of jobs in the state | = 1 if the respondent believes oil and gas industry is the major source of jobs in the state, 0 o/w |
| Earthquake-related safety concern | = 1 if the respondent is concerned about his/her safety from earthquakes, 0 otherwise |
| State should regulate environmental quality | = 1 if the respondent believes that the state government should regulate environmental quality, 0 o/w |
| Oil and gas companies at residential property | The number of oil and gas companies operating on respondent’s property |
| Works in the oil and gas industry | = 1 if the relative or respondent works in the oil and gas industry, 0 o/w |
| Oil and gas leases revenue | = 1 if the relative or respondent obtains revenue from O&G leases,0 o/w |
| Expects to work in oil and gas companies one day | = 1 if the respondent expects to be hired in the oil and gas industry one day, 0 o/w |
| Has experienced earthquakes in the past | = 1 if the respondent has experienced earthquakes in the past, 0 o/w |
| Wastewater injection is responsible for earthquakes in Oklahoma | = 1 if the respondent believes wastewater injection is responsible for earthquakes in Oklahoma, 0 o/w |