In recent years, the word "happiness" has become very common. In the "World Happiness Report", the word "happiness" accounted for one thousand of the word "happiness" in the world. Currently, we face three great challenges in this regard: indices and aggregation across domains, the happiness of a population and Happiness and sustainability.
1. Indices and aggregation across domains
2. The happiness of the population
3. Happiness and Sustainability
Solution
1) International cooperation with strong links between governments to solve challenges
2) Develop concepts that can be integrated into well-being, i.e. be clear and help monitor progress and improve policy