Name, content and descriptive statistics of variables in the data set
| Variable name | Description | Mean | Standard deviation | Sample size |
|---|---|---|---|---|
| Dependent variable | ||||
| PDO logo | Dummy variable taking the value of 1 if the respondent recognised the PDO logo and 0 otherwise | 0.16 | 0.37 | 110,365 |
| Independent variables | ||||
| Demographics | ||||
| Gender | Dummy variable taking the value of 1 if the respondent is female and 0 if the respondent is male | 0.52 | 0.50 | 110,365 |
| Age | The respondent’s age measured in years. In the analysis, the centred variable is used | 47.56 | 18.62 | 110,365 |
| Household size | The respondent’s size of household in number of person including herself. In the analysis, the centred variable is used | 2.70 | 1.41 | 110,364 |
| Rural | Dummy variable taking the value of 1 if the respondent lives in a rural area and 0 otherwise | 0.31 | 0.46 | 110,296 |
| Small town | Dummy variable taking the value of 1 if the respondent lives in a small town and 0 otherwise | 0.43 | 0.50 | 110,296 |
| Large town | Dummy variable taking the value of 1 if the respondent lives in a large town and 0 otherwise | 0.25 | 0.44 | 110,296 |
| Single no children | Dummy variable taking the value of 1 if the respondent is single without children and 0 otherwise | 0.30 | 0.46 | 108,991 |
| Single with children | Dummy variable taking the value of 1 if the respondent is single with children and 0 otherwise | 0.06 | 0.24 | 108,991 |
| Married no children | Dummy variable taking the value of 1 if the respondent is married without children and 0 otherwise | 0.31 | 0.46 | 108,991 |
| Married with children | Dummy variable taking the value of 1 if the respondent is married with children and 0 otherwise | 0.32 | 0.47 | 108,991 |
| Human capital | ||||
| Education basic | Dummy variable taking the value of 1 if respondent finished education before the age of 14 and 0 otherwise | 0.13 | 0.33 | 108,812 |
| Education medium | Dummy variable taking the value of 1 if respondent finished education at the age of 15–18 years and 0 otherwise | 0.40 | 0.49 | 108,812 |
| Education high | Dummy variable taking the value of 1 if respondent finished education at the age of 19–22 years and 0 otherwise | 0.23 | 0.42 | 108,812 |
| Education very high | Dummy variable taking the value of 1 if respondent finished education after the age of 22 years and 0 otherwise | 0.16 | 0.37 | 108,812 |
| Education student | Dummy variable taking the value of 1 if respondent is still studying and 0 otherwise | 0.09 | 0.29 | 108,812 |
| Internet high use | Dummy variable, taking the value of 1 if respondent uses the Internet almost every day and 0 otherwise | 0.63 | 0.48 | 110,365 |
| Internet medium use | Dummy variable taking the value of 1 if respondent uses the Internet two or three times in a week and 0 otherwise | 0.08 | 0.27 | 110,365 |
| Internet low use | Dummy variable taking the value of 1 if respondent uses the Internet once a week or less often and 0 otherwise | 0.05 | 0.23 | 110,365 |
| Internet no use | Dummy variable taking the value of 1 if respondent does not use the Internet and 0 otherwise | 0.23 | 0.42 | 110,365 |
| Economic and financial | ||||
| Retired | Dummy variable taking the value of 1 if respondent is retired or unable to work and 0 otherwise | 0.27 | 0.44 | 110,365 |
| Self-employed | Dummy variable taking the value of 1 if respondent is self-employed and 0 otherwise | 0.08 | 0.27 | 110,365 |
| Manager | Dummy variable taking the value of 1 if respondent is employed as manager and 0 otherwise | 0.10 | 0.31 | 110,365 |
| White collar | Dummy variable taking the value of 1 if respondent is employed as white collar and 0 otherwise | 0.11 | 0.32 | 110,365 |
| Blue collar | Dummy variable taking the value of 1 if respondent is employed as a blue collar or manual worker and 0 otherwise | 0.21 | 0.40 | 110,365 |
| House keeping | Dummy variable taking the value of 1 if respondent is a house person and 0 otherwise | 0.07 | 0.25 | 110,365 |
| Unemployed | Dummy variable taking the value of 1 if respondent is unemployed and 0 otherwise | 0.07 | 0.26 | 110,365 |
| Student | Dummy variable taking the value of 1 if respondent is a student and 0 otherwise | 0.09 | 0.28 | 110,365 |
| House | Dummy variable taking the value of 1 if respondent owns a house or is paying a mortgage for it and 0 otherwise | 0.68 | 0.47 | 110,365 |
| Car | Dummy variable taking the value of 1 if respondent owns a car and 0 otherwise | 0.74 | 0.44 | 110,365 |
| Financial stress | Dummy variable taking the value of 1 if respondent never had difficulties paying her bills and 0 otherwise | 0.63 | 0.48 | 108,387 |
| Survey 2012 | Dummy variable taking the value of 1 if respondent is in the 2012 survey and 0 otherwise | 0.24 | 0.43 | 110,365 |
| Survey 2013 | Dummy variable taking the value of 1 if respondent is in the 2013 survey and 0 otherwise | 0.25 | 0.43 | 110,365 |
| Survey 2015 | Dummy variable taking the value of 1 if respondent is in the 2015 survey and 0 otherwise | 0.25 | 0.43 | 110,365 |
| Survey 2017 | Dummy variable taking the value of 1 if respondent is in the 2017 survey and 0 otherwise | 0.25 | 0.44 | 110,365 |
| Country level | ||||
| Registered PDOs and PGIs | The average number of registered PDO and PGIs that are produced in a respondent’s country in the year of the survey | 32.11 | 46.28 | 110,365 |
| Survey-specific variables | ||||
| Price | Dummy variable taking the value of 1 if respondent considers price to be a very important factor and 0 otherwise, recorded in the 2012 survey | 0.65 | 0.48 | 26,541 |
| Food miles | Dummy variable taking the value of 1 if respondent buys locally produced and seasonal food whenever possible as an action against climate change and 0 otherwise, recorded in the 2013 survey | 0.36 | 0.48 | 27,919 |
| Income low | Dummy variable taking the value of 1 if respondent’s household income is in the lower-income quintile and 0 otherwise, recorded in the 2017 survey | 0.28 | 0.45 | 22,763 |
| Income second quintile | Dummy variable taking the value of 1 if respondent’s household income is in the second income quintile and 0 otherwise, recorded in the 2017 survey | 0.27 | 0.44 | 22,763 |
| Income third quintile | Dummy variable taking the value of 1 if respondent’s household income is in the third income quintile and 0 otherwise, recorded in the 2017 survey | 0.20 | 0.40 | 22,763 |
| Income fourth quintile | Dummy variable taking the value of 1 if respondent’s household income is in the fourth income quintile and 0 otherwise, recorded in the 2017 survey | 0.14 | 0.35 | 22,763 |
| Income upper | Dummy variable taking the value of 1 if respondent’s household income is in the upper income quintile and 0 otherwise, recorded in the 2017 survey | 0.11 | 0.31 | 22,763 |
| Social class working | Dummy variable taking the value of 1 if the respondent places herself in the working class and 0 otherwise, recorded in the 2015 and 2017 surveys | 0.29 | 0.45 | 53,715 |
| Social class low | Dummy variable taking the value of 1 if respondent places herself in the low class and 0 otherwise, recorded in the 2015 and 2017 surveys | 0.18 | 0.38 | 53,715 |
| Social class medium | Dummy variable taking the value of 1 if respondent places herself in the middle class and 0 otherwise, recorded in the 2015 and 2017 surveys | 0.45 | 0.50 | 53,715 |
| Social class upper | Dummy variable taking the value of1 if respondent places herself in the upper middle or high class and 0 otherwise, recorded in the 2015 and 2017 surveys | 0.09 | 0.28 | 53,715 |
| Variable name | Description | Mean | Standard deviation | Sample size |
|---|---|---|---|---|
| PDO logo | Dummy variable taking the value of 1 if the respondent recognised the PDO logo and 0 otherwise | 0.16 | 0.37 | 110,365 |
| Demographics | ||||
| Gender | Dummy variable taking the value of 1 if the respondent is female and 0 if the respondent is male | 0.52 | 0.50 | 110,365 |
| Age | The respondent’s age measured in years. In the analysis, the centred variable is used | 47.56 | 18.62 | 110,365 |
| Household size | The respondent’s size of household in number of person including herself. In the analysis, the centred variable is used | 2.70 | 1.41 | 110,364 |
| Rural | Dummy variable taking the value of 1 if the respondent lives in a rural area and 0 otherwise | 0.31 | 0.46 | 110,296 |
| Small town | Dummy variable taking the value of 1 if the respondent lives in a small town and 0 otherwise | 0.43 | 0.50 | 110,296 |
| Large town | Dummy variable taking the value of 1 if the respondent lives in a large town and 0 otherwise | 0.25 | 0.44 | 110,296 |
| Single no children | Dummy variable taking the value of 1 if the respondent is single without children and 0 otherwise | 0.30 | 0.46 | 108,991 |
| Single with children | Dummy variable taking the value of 1 if the respondent is single with children and 0 otherwise | 0.06 | 0.24 | 108,991 |
| Married no children | Dummy variable taking the value of 1 if the respondent is married without children and 0 otherwise | 0.31 | 0.46 | 108,991 |
| Married with children | Dummy variable taking the value of 1 if the respondent is married with children and 0 otherwise | 0.32 | 0.47 | 108,991 |
| Human capital | ||||
| Education basic | Dummy variable taking the value of 1 if respondent finished education before the age of 14 and 0 otherwise | 0.13 | 0.33 | 108,812 |
| Education medium | Dummy variable taking the value of 1 if respondent finished education at the age of 15–18 years and 0 otherwise | 0.40 | 0.49 | 108,812 |
| Education high | Dummy variable taking the value of 1 if respondent finished education at the age of 19–22 years and 0 otherwise | 0.23 | 0.42 | 108,812 |
| Education very high | Dummy variable taking the value of 1 if respondent finished education after the age of 22 years and 0 otherwise | 0.16 | 0.37 | 108,812 |
| Education student | Dummy variable taking the value of 1 if respondent is still studying and 0 otherwise | 0.09 | 0.29 | 108,812 |
| Internet high use | Dummy variable, taking the value of 1 if respondent uses the Internet almost every day and 0 otherwise | 0.63 | 0.48 | 110,365 |
| Internet medium use | Dummy variable taking the value of 1 if respondent uses the Internet two or three times in a week and 0 otherwise | 0.08 | 0.27 | 110,365 |
| Internet low use | Dummy variable taking the value of 1 if respondent uses the Internet once a week or less often and 0 otherwise | 0.05 | 0.23 | 110,365 |
| Internet no use | Dummy variable taking the value of 1 if respondent does not use the Internet and 0 otherwise | 0.23 | 0.42 | 110,365 |
| Economic and financial | ||||
| Retired | Dummy variable taking the value of 1 if respondent is retired or unable to work and 0 otherwise | 0.27 | 0.44 | 110,365 |
| Self-employed | Dummy variable taking the value of 1 if respondent is self-employed and 0 otherwise | 0.08 | 0.27 | 110,365 |
| Manager | Dummy variable taking the value of 1 if respondent is employed as manager and 0 otherwise | 0.10 | 0.31 | 110,365 |
| White collar | Dummy variable taking the value of 1 if respondent is employed as white collar and 0 otherwise | 0.11 | 0.32 | 110,365 |
| Blue collar | Dummy variable taking the value of 1 if respondent is employed as a blue collar or manual worker and 0 otherwise | 0.21 | 0.40 | 110,365 |
| House keeping | Dummy variable taking the value of 1 if respondent is a house person and 0 otherwise | 0.07 | 0.25 | 110,365 |
| Unemployed | Dummy variable taking the value of 1 if respondent is unemployed and 0 otherwise | 0.07 | 0.26 | 110,365 |
| Student | Dummy variable taking the value of 1 if respondent is a student and 0 otherwise | 0.09 | 0.28 | 110,365 |
| House | Dummy variable taking the value of 1 if respondent owns a house or is paying a mortgage for it and 0 otherwise | 0.68 | 0.47 | 110,365 |
| Car | Dummy variable taking the value of 1 if respondent owns a car and 0 otherwise | 0.74 | 0.44 | 110,365 |
| Financial stress | Dummy variable taking the value of 1 if respondent never had difficulties paying her bills and 0 otherwise | 0.63 | 0.48 | 108,387 |
| Survey 2012 | Dummy variable taking the value of 1 if respondent is in the 2012 survey and 0 otherwise | 0.24 | 0.43 | 110,365 |
| Survey 2013 | Dummy variable taking the value of 1 if respondent is in the 2013 survey and 0 otherwise | 0.25 | 0.43 | 110,365 |
| Survey 2015 | Dummy variable taking the value of 1 if respondent is in the 2015 survey and 0 otherwise | 0.25 | 0.43 | 110,365 |
| Survey 2017 | Dummy variable taking the value of 1 if respondent is in the 2017 survey and 0 otherwise | 0.25 | 0.44 | 110,365 |
| Country level | ||||
| Registered PDOs and PGIs | The average number of registered PDO and PGIs that are produced in a respondent’s country in the year of the survey | 32.11 | 46.28 | 110,365 |
| Survey-specific variables | ||||
| Price | Dummy variable taking the value of 1 if respondent considers price to be a very important factor and 0 otherwise, recorded in the 2012 survey | 0.65 | 0.48 | 26,541 |
| Food miles | Dummy variable taking the value of 1 if respondent buys locally produced and seasonal food whenever possible as an action against climate change and 0 otherwise, recorded in the 2013 survey | 0.36 | 0.48 | 27,919 |
| Income low | Dummy variable taking the value of 1 if respondent’s household income is in the lower-income quintile and 0 otherwise, recorded in the 2017 survey | 0.28 | 0.45 | 22,763 |
| Income second quintile | Dummy variable taking the value of 1 if respondent’s household income is in the second income quintile and 0 otherwise, recorded in the 2017 survey | 0.27 | 0.44 | 22,763 |
| Income third quintile | Dummy variable taking the value of 1 if respondent’s household income is in the third income quintile and 0 otherwise, recorded in the 2017 survey | 0.20 | 0.40 | 22,763 |
| Income fourth quintile | Dummy variable taking the value of 1 if respondent’s household income is in the fourth income quintile and 0 otherwise, recorded in the 2017 survey | 0.14 | 0.35 | 22,763 |
| Income upper | Dummy variable taking the value of 1 if respondent’s household income is in the upper income quintile and 0 otherwise, recorded in the 2017 survey | 0.11 | 0.31 | 22,763 |
| Social class working | Dummy variable taking the value of 1 if the respondent places herself in the working class and 0 otherwise, recorded in the 2015 and 2017 surveys | 0.29 | 0.45 | 53,715 |
| Social class low | Dummy variable taking the value of 1 if respondent places herself in the low class and 0 otherwise, recorded in the 2015 and 2017 surveys | 0.18 | 0.38 | 53,715 |
| Social class medium | Dummy variable taking the value of 1 if respondent places herself in the middle class and 0 otherwise, recorded in the 2015 and 2017 surveys | 0.45 | 0.50 | 53,715 |
| Social class upper | Dummy variable taking the value of1 if respondent places herself in the upper middle or high class and 0 otherwise, recorded in the 2015 and 2017 surveys | 0.09 | 0.28 | 53,715 |