Researcher Gregory S. Paul suggests that economic development has a closer relationship with religiosity.[27] He argues that once any "nation's population becomes prosperous and secure, for example through economic security and universal health care, much of the population loses interest in seeking the aid and protection of supernatural entities." Other studies have shown that increased wealth is correlated with a decline in religious beliefs.[28][29] Indeed, the majority of the nations that showed a strong relationship between low religiosity and high IQ in the 2008 study were developed nations.[5]