The customs and lifestyles of people in developed and developing countries can affect their happiness in various ways. In developed countries, people tend to have access to more resources, such as education, healthcare, and job opportunities, which can lead to greater overall happiness (Diener & Seligman, 2004). On the other hand, in developing countries, people may face challenges such as poverty, lack of access to basic needs, and political instability, which can lead to lower levels of happiness (Diener & Suh, 2000).