Be generous, live longer
The act of giving and receiving increases well-being: the recipient benefits directly from the gift, and the giver benefits indirectly through emotional satisfaction. A new study published in the journal PNAS now suggests that those who share more also live longer. In their analysis, Fanny Kluge and Tobias Vogt found a strong linear relationship between a society's generosity and the average life expectancy of its members. The researchers at the Max Planck Institute for Demographic Research in Rostock, Germany, conclude that people are living longer in societies whose members support each other with resources.
02 september 2020--"What is new about our study is that for the first time we have combined transfer payments from state and family and evaluated the effect", says Fanny Kluge. The researchers used data for 34 countries from the National Transfer Accounts project. For all countries, state and private transfer payments received and given by each individual over his or her lifetime are added up and presented in relation to lifetime income.
Societies in Western European countries share a lot and live long
Sub-Saharan African countries such as Senegal share the lowest percentage of their lifetime income and have the highest mortality rate of all the countries studied. Those who share little die earlier. Although South Africa is economically more developed than other African countries, few resources are redistributed; here too, the mortality rate is relatively high. In these countries, the mortality rate of children and young people up to the age of 20 is also higher than in the other countries studied. "Our analyses suggest that redistribution influences the mortality rate of a country, regardless of the per capita gross domestic product," says Fanny Kluge.
Societies in Western European countries and Japan transfer a lot to the youngest and oldest and mortality rates are low. The countries studied in South America also have high transfer payments. There, people share more than 60 percent of their average life income with others. The mortality rates are lower than in sub-Saharan Africa, but higher than those of Western Europe, Australia, Japan and Taiwan.
In France and Japan, the two countries with the lowest mortality rates of all the countries studied, an average citizen shares between 68 and 69 percent of their lifetime income. Here, the risk of dying in the coming year is only half as high for people over 65 as in China or Turkey, where between 44 and 48 percent of lifetime income is redistributed.
"What I find particularly interesting is that the relationship between generosity and lifetime income that we described does not depend on whether the benefits come from the state or from the wider family," says Fanny Kluge. Both of these factors cause the population live longer compared to societies with fewer transfer payments.
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