This Festschrift is published in honor of Alex C. Michalos, a great scholar and inspiration to many upcoming and famous academics and practitioners. The Festschrift celebrates his lifelong, outstanding scientific and cultural contribution to Quality of Life Research. It contains contributions written by the most prestigious and renowned scholars in the field of social indicators research and quality of life studies. Taken together, the contributions from scholars around the world reflect Michalos' stance that even though there may be differences in individual scientific positions, the language in the field of quality of life has no limits and boundaries.

Maggino - Preface.- Quality of Life in different segments of population.- 1.Casas - Children, adolescents and quality of life: The perspective of social sciences along two decades.- 2.Land, Lamb and Fu - Measuring trends in child wellbeing and child suffering in the United States, 1975-2013.- 3.Shek - The Role of Positive Youth Development and Family Functioning in Chinese Adolescent Well-Being: Theoretical Considerations and Empirical Evidence.- Theoretical issues.- 4.Cummins - The theory of subjective wellbeing homeostasis: A contribution to understanding life quality.- 5.Easterlin - Do People Adapt to Poorer Health? Health and Health Satisfaction over the Life Cycle.- 6.Noll - Progress: Concept and Measurement.- 7.Rojas and Guardiola Wanden-Berghe - A Hierarchy of Needs: A Subjective Well-Being Study.- 8.Sirgy - Towards a Theory of Residential Well-Being: A Quality-of-Life Perspective.- 9.Veenhoven - What we know about happiness, that we did not know before.