Veenhoven, Ruut (2008): How universal is happiness? Unpublished.
Veenhoven, Ruut (1990): Inequality in happiness: inequality in countries compared across countries. Unpublished.
Veenhoven, Ruut (2007): Measures of Gross National Happiness. Published in: OECD: Statistics, Knowledge and Policy. Measuring and fostering the progress of societies (2007): pp. 231-253.
Veenhoven, Ruut (1992): Social equality and state welfare effort: More income-equality, no more equality in quality of life. Unpublished.
Veenhoven, Ruut (2004): Sustainable consumption and happiness. Unpublished.
