First, Gross Domestic Product. Denmark doesn't have the highest per capita GDP in the world (that honor belongs to Luxembourg), but it's in the top 10, with a per capita income of almost $61,000 per year.
Source: World Bank
Minimum wages in Denmark are around $20 per hour, and Danish unions mean strong workers' rights.
Source: US Embassy in Denmark
There's also a high degree of social support. Researchers gleaned this from answers to a Gallup poll, which asked Danes if they have a friend or family member to turn to in times of trouble.
The official website of the Danish government explains: "Money is not as important as social life here," according to Danish economics professor Christian Bjornskov.
The report also analyzed whether respondents felt satisfied with the degree of freedom to make choices their lives.
"The great thing about Danish society is that it doesn't judge other people's lives," Bjornskov said.
Source: Government of Denmark
Life expectancy from birth factors in too: Danes live, on average, 80 years.
Source: OECD Better Life Index
Researchers measured generosity, asking participants if they'd donated to charity or volunteered in the last year.
According to the World Giving Index, 67% of Danes had helped a stranger in the last month, and 20% give to charities.
Source: The Guardian
Danes also perceive their government as less corrupt. Denmark earned a "very clean" rating in 2015 on the Corruption Perception Index.
Source: Transparency International
