| Publication |
| Author(s) | Leepin, P. |
| Title | Le Monde Entier Interviewé. (The Entire World Interviewed). |
| Source | La Baloise, Groupe des Assurances, 1978, Bâle, Switzerland |
| Investigation |
| Public | 15+ aged, general public, 5 parts of the world, 1974-1976. |
| | Parts of the world included are: Western-Europe, North America, Australia, South America, Africa, Asia. Not included are Eastern-Europe, China and the Arab countries.
Data: Gallup/Ketering World Survey |
| | 1974-1976 |
| Survey name | Not available |
| | Gallup/Ketting World Survey |
| Sample | Not available |
| | Probability area sampling. Samples representative for parts of the world: not representative for countries. |
| Respondents N = | 8433 |
| Non Response | Not available |
| Assesment | Questionnaire: paper |
| | Conducted by 35 Gallup bureaus in different countries. |
| Happiness measure(s) used |