Human being should be seen as the most important asset of economic life. and its well-being should be considered as an important indicator in having a realistic account regarding the level of prosperity and evolution of a nation. Although the concept of GNH (Gross National Happiness) has been introduced by economists like Richard Layard. and we have the example of Kingdom of Buthan wh... https://www.marcelovicente.com/product-category/smoothing-hair-treatment/