Basedonastudyin40countriesover23years,agroupofresearche...
問題詳情：Basedonastudyin40countriesover23years,agroupofresearchersfoundthatifthebasicneedsarecovered,wealthdoesnotleadtomorehappiness.Theyexplainedthatwithanincreasingincome,demandsandexpectationsareri...