Capítulo 4 World Value Survey

The World Values Survey (WVS) is an international research program devoted to the scientific and academic study of social, political, economic, religious and cultural values of people in the world. According to their website, the project’s goal is to assess which impact values stability or change over time has on the social, political and economic development of countries and societies. In this database, we included some indicators about political and social association like trust in unions, level union membership and belonging to labour unions. These are available for 47 countries and between 1981 and 2020.

Variable	Concept	Definition	Values	Class
Political and Social Association
tu_great_deal_wvs	Trust in unions-A great deal	Percentage based on the degree of trust in trade unions. The calculation was made for each country and reference year, considering a balanced weighting for a sample simulation of 1,000 for each country, in order to make the percentages comparable and representative at the level of each national unit. The question originally used is “I am going to name a number oforganizations. For each one, could you tell me how much confidence you have in them: is it a great deal of confidence, quite a lot of confidence, not very much confidence or none at all?”	(0-100)	numeric
tu_quite_lot_wvs	Trust in unions-Quite a lot	Percentage based on the degree of trust in trade unions. The calculation was made for each country and reference year, considering a balanced weighting for a sample simulation of 1,000 for each country, in order to make the percentages comparable and representative at the level of each national unit. The question originally used is “I am going to name a number oforganizations. For each one, could you tell me how much confidence you have in them: is it a great deal of confidence, quite a lot of confidence, not very much confidence or none at all?”	(0-100)	numeric
tu_not_very_much_wvs	Trust in unions-Not very much	Percentage based on the degree of trust in trade unions. The calculation was made for each country and reference year, considering a balanced weighting for a sample simulation of 1,000 for each country, in order to make the percentages comparable and representative at the level of each national unit. The question originally used is “I am going to name a number oforganizations. For each one, could you tell me how much confidence you have in them: is it a great deal of confidence, quite a lot of confidence, not very much confidence or none at all?”	(0-100)	numeric
tu_none_all_wvs	Trust in unions-None at all	Percentage based on the degree of trust in trade unions. The calculation was made for each country and reference year, considering a balanced weighting for a sample simulation of 1,000 for each country, in order to make the percentages comparable and representative at the level of each national unit. The question originally used is “I am going to name a number oforganizations. For each one, could you tell me how much confidence you have in them: is it a great deal of confidence, quite a lot of confidence, not very much confidence or none at all?”	(0-100)	numeric
um_a_not_member_wvs	Level union memership- Not member	Percentage based on the degree of participation in labour unions. The calculation was made for each country and reference year, considering a balanced weighting for a sample simulation of 1,000 for each country, in order to make the percentages comparable and representative at the level of each national unit. The question originally used is “Now I am going to read off a list of voluntary organizations. For each organization, could you tell me whether you are an active member, an inactive member or not a member of that type of organization?”	(0-100)	numeric
um_a_inactive_member_wvs	Level union memership- Inactive	Percentage based on the degree of participation in labour unions. The calculation was made for each country and reference year, considering a balanced weighting for a sample simulation of 1,000 for each country, in order to make the percentages comparable and representative at the level of each national unit. The question originally used is “Now I am going to read off a list of voluntary organizations. For each organization, could you tell me whether you are an active member, an inactive member or not a member of that type of organization?”	(0-100)	numeric
um_a_active_member_wvs	Level union memership- Active	Percentage based on the degree of participation in labour unions. The calculation was made for each country and reference year, considering a balanced weighting for a sample simulation of 1,000 for each country, in order to make the percentages comparable and representative at the level of each national unit. The question originally used is “Now I am going to read off a list of voluntary organizations. For each organization, could you tell me whether you are an active member, an inactive member or not a member of that type of organization?”	(0-100)	numeric
um_not_member_wvs	Belong labour unions-Not member	Percentage based on the degree of participation in labour unions. The calculation was made for each country and reference year, considering a balanced weighting for a sample simulation of 1,000 for each country, in order to make the percentages comparable and representative at the level of each national unit. The question originally used is “Do you belong to labour unions?”	(0-100)	factor
um_member_wvs	Belong labour unions-Member	Percentage based on the degree of participation in labour unions. The calculation was made for each country and reference year, considering a balanced weighting for a sample simulation of 1,000 for each country, in order to make the percentages comparable and representative at the level of each national unit. The question originally used is “Do you belong to labour unions?”	(0-100)	factor