Can natural world heritage sites promote development and social harmony?

UNESCO designates the areas of biological, geological, and evolutionary importance all over the world as the Natural World Heritage Sites ('sites'). These sites are all unique, but not equally popular with the tourists. This study quantifies the effect of population, percapita income, and number, area and access on the number of visitors to the sites. The results suggest that good infrastructure for tourism and civil order may be more important than population or income for the number of visitors. The study identifies the policies and institutions that can increase the popularity of the sites. It argues that the sites can promote development, build consensus on conservation, and advance social harmony.