Long-running German panel survey shows that personal and economic choices, not just genes, matter for happiness
Bruce Headey, Ruud Muffels, Gert G Wagner
Proceedings of the National Academy of Sciences of the United States of America | NATL ACAD SCIENCES | Published : 2010
Support for this work was provided by the German Ministry for Education and Research and a Max Planck Society Fellowship (to G.G.W.).