Question for Della Duncan

To Della Duncan,
 I hear a statement that Bhutan is the happiest country in the world: my doubt. It is because I hear the people in North Korea say they are very happy, yet they do not have food to eat. Are they really happy or are they the victims of propaganda? The concept of relative deprivation should be considered. If you see that other people are rich and well-educated, you may be unhappy. Globalization has come. I think sooner or later the people in Bhutan or North Korea will realize that their public health is simple, their educational system is low, and their GDP per capita is super low (of course they do not have serious pollution, they do not have wars, and their communal culture may be cool). If Bhutan or North Korea is one of the happiest countries in the world, people from the world have to migrant to this country. In contrast, I am afraid their citizens will move to some developing country if they have a chance. There are some rankings on happiest countries, but in this link, 2019, Bhutan is the 95th: https://www.cnn.com/travel/article/worlds-happiest-countries-united-nations-2019/index.html
    I think freedom is the foundation of happiness. Western (American) elements of freedom are external: economic autonomy, educational attainment, political participation and religious liberty. In contrast, Eastern (Buddhist) elements of freedom are internal: precept, concentration, and wisdom. Do you think a free and happy person or a happy country owns  both Western and Eastern elements of freedom? 
My second question is which majors may help improve the study and application of Happiness Studies?
Thank you very much,

Quang Le.