Series Introduction:

This series of posts on economic statistics publications aims to provide clear and accessible interpretations of influential works in economic statistics worldwide. In addition to books published by academic presses, it also includes methodological manuals and thematic paper collections published by international organizations (such as OECD, UN, World Bank, IMF, EU), doctoral dissertations in economic statistics, and selected working papers from economic research institutions.

Book Information:
van Praag, Bernard M. S., and Ada Ferrer-i-Carbonell, Happiness Quantified: A Satisfaction Calculus Approach, 1st edn (Oxford, 2007; online edn, Oxford Academic, 1 May 2008), https://doi.org/10.1093/acprof:oso/9780199226146.001.0001, accessed 17 Mar. 2025.

Since the mid-20th century, economic research has gradually expanded from traditional analyses of material wealth to broader domains of human well-being. However, as an important dimension for measuring human welfare, subjective well-being has long faced methodological challenges in terms of quantitative analysis within economics. In the book Happiness Quantified: A Satisfaction Calculus Approach, Bernard M. S. van Praag and Ada Ferrer-i-Carbonell employ rigorous econometric methods to quantitatively analyze subjective well-being indicators across multiple life domains, including income satisfaction, domain satisfaction, and political satisfaction, providing innovative methods and practical references for the study of subjective well-being in economics.

Figure 1. Cover of Happiness Quantified: A Satisfaction Calculus Approach

Background: The Rise and Challenges of Happiness Economics

Happiness economics, as an interdisciplinary field, mainly focuses on the measurement of happiness or subjective well-being (SWB) and its impact on economic behavior and policy. This field integrates perspectives from psychology, sociology, and economics, aiming to complement traditional economic analyses of utility and welfare through the quantification of subjective satisfaction and quality of life.
The core argument of the book is that although happiness is often considered incomparable and elusive, it can in fact be systematically quantified using survey data and modeled for measurement. Subjective well-being is not merely a simple function of income, but is composed of satisfaction across multiple life domains (such as health, work, housing, and social relationships). The authors demonstrate how to aggregate satisfaction across different domains into “overall life satisfaction,” providing a deeper analytical pathway for understanding socio-economic phenomena such as income inequality, social welfare issues, and public policy design.
The authors also critique the limitations of current happiness economics. First, many existing studies rely on subjective self-reported data, which raises challenges not only in defining and measuring the abstract concept of “happiness,” but also in addressing individual differences, cultural variations, and cross-country comparisons. Second, although a large body of research has explored causal relationships between happiness and economic variables such as income, health, and social relationships, there is a lack of systematic and model-based integration of these factors. Therefore, how to comprehensively consider these factors within complex socio-economic environments remains a pressing issue in the field. Through interdisciplinary theoretical integration and innovations in econometric modeling, the authors establish a more inclusive and methodologically rigorous framework for studying subjective well-being.

Core Theoretical Framework: Quantitative Analysis of Subjective Well-Being

In Happiness Quantified: A Satisfaction Calculus Approach, the authors build a multidimensional framework for quantifying subjective well-being based on the “Satisfaction Question” (SQ) as a measurement tool. This framework goes beyond traditional approaches by covering individual satisfaction across various life domains (such as income, health, employment, and family life). By introducing the concept of “domain satisfaction,” the authors argue that satisfaction in different life domains is independent, and each domain contributes uniquely to overall happiness. The core of this theoretical framework lies in aggregating satisfaction across domains into “overall life satisfaction” (Aggregation of Satisfactions), forming the two-layer model (The two-layer model). In this model, domain satisfactions serve as independent variables, effectively avoiding issues related to cardinal effects while clearly representing trade-offs among different domains.

Figure 2. The two-layer model

In addition, the framework incorporates social reference groups and social comparison theory, suggesting that individual satisfaction is deeply influenced by the surrounding social environment. Based on the “social filter” model, the authors point out that individuals do not evaluate their satisfaction in isolation, but rather compare it with the satisfaction levels of their reference groups. This perspective highlights the important role of social comparison in shaping subjective well-being and implies that policy interventions aimed at improving happiness should take into account dynamic socio-economic conditions. Therefore, this framework not only extends traditional economic models but also integrates insights from psychology and sociology, revealing how individual satisfaction is formed through the interaction of personal experiences and social forces, making the book essential reading for scholars interested in the complex dynamics of happiness.

Methodological Innovation: Optimizing Satisfaction Data Analysis

One of the key contributions of the book is the proposal and application of the “Probit OLS” (POLS) method, which efficiently analyzes discrete response data in satisfaction surveys. This method overcomes the high computational complexity and difficulty in model fitting associated with traditional Probit regression when dealing with large and complex nonlinear problems. The advantage of the POLS method lies in its ability to handle large-scale, multidimensional datasets without sacrificing analytical accuracy. By applying the POLS method to different satisfaction domains and proposing a weighted aggregation model that avoids reliance on cardinal comparisons, the authors demonstrate how subjective well-being can be incorporated as a quantitative variable into econometric models. This innovative method provides powerful new tools for empirical research on the complex relationships between individual satisfaction and socio-economic variables, expanding the scope of happiness measurement and social policy analysis.

Academic and Practical Implications: Interdisciplinary Applications and Policy Impact

Happiness Quantified: A Satisfaction Calculus Approach has had a profound impact across multiple disciplines and provides innovative solutions to various real-world problems.
In the field of health economics, the authors propose a new method for evaluating the effectiveness of health policies through the quantitative analysis of health satisfaction. While the traditional indicator “Quality-Adjusted Life Years (QALY)” evaluates health based on the combined benefits of improved health status and extended lifespan, the authors argue that it fails to fully account for individual-level differences. Based on the trade-off model, they derive the monetary compensation required to offset welfare losses caused by health problems. This approach not only reveals a monetary-based method for health evaluation but also helps policymakers assess the economic value of different health interventions.
In environmental economics, particularly regarding noise pollution and climate change, the authors construct a “climate equivalence scale” to quantify the impact of different environmental conditions on residents’ well-being. For example, by analyzing the effects of noise pollution around Amsterdam Airport on housing prices and residents’ happiness, the book proposes new approaches to environmental compensation. It also reveals how living costs under different climate conditions affect happiness and provides a basis for policymakers to adjust welfare and compensation according to regional climate differences.
In addition, the book explores income inequality and social welfare issues, proposing a new approach that incorporates satisfaction measurement into income distribution and poverty analysis. Through the analysis of income satisfaction, the authors introduce the concept of a “subjective poverty line,” arguing that poverty should not be defined solely by income or material conditions but should also consider individuals’ perceptions and evaluations of their economic situation. This breaks through the traditional objective poverty line standard and provides new perspectives for optimizing social welfare and poverty alleviation policies. Based on this, the authors further propose the concept of “multidimensional poverty,” emphasizing that poverty involves not only income but also multiple dimensions such as health, education, and quality of life. This multidimensional approach offers a more comprehensive reflection of individuals’ actual living conditions and provides new insights for poverty research.

Author Introduction

Figure 3. Bernard M. S. van Praag

Bernard M. S. van Praag (born 1939 in Amsterdam, Netherlands) is a renowned Dutch economist and Professor of Economics at the University of Amsterdam. He has taught at institutions such as Vrije Universiteit Brussels, Erasmus University Rotterdam, and Leiden University. He has also served as the founding president of the European Society for Population Economics, associate editor of the Journal of Population Economics and the Journal of Health Economics, and a member of the Dutch Social and Economic Council. In 1999, he was elected to the Royal Netherlands Academy of Arts and Sciences.
Van Praag has long been engaged in research on social inequality, collective behavior, and social change, and is particularly known for his work on welfare and happiness measurement. His research is grounded in critical theory, historical materialism, and post-structuralism, emphasizing that social change requires attention not only to economic structures but also to social culture, identity, and ideology. He has published influential works such as Society and History: Philosophical and Sociological Perspectives on Social Change and Culture, Power and Inequality, providing important theoretical foundations for the study of social theory and transformation, while also making significant contributions to econometric methodology, labor economics, and health economics.

Figure 4. Ada Ferrer-i-Carbonell

Ada Ferrer-i-Carbonell (born 1971 in Sabadell, Spain) is a prominent Spanish economist. She is currently a professor at the Barcelona School of Economics, a tenured researcher at CSIC-IAE, a MOVE research fellow, and a researcher at the IZA Institute of Labor Economics. She has also served as associate editor of the Journal of Economic Behavior and Organization and is a member of the World Happiness team at the London School of Economics.
Her research covers multiple areas in economics, including individual welfare, subjective well-being, health, income, and risk attitudes. She has made significant contributions in econometrics, happiness measurement, environmental economics, and behavioral economics. Together with Bernard M. S. van Praag, she co-authored two highly influential works: Happiness Quantified: A Satisfaction Calculus Approach (2004, Oxford University Press) and The Theory of Happiness in Economics and Psychology (2007, Oxford University Press).
Ferrer-i-Carbonell’s academic contributions have had a profound impact on the field of happiness economics. Her work has been cited more than 11,000 times in academic and scientific publications. She has published in top journals such as Nature and frequently appears in international media outlets such as The Economist, El País, and Catalan National Radio, providing deep theoretical insights and empirical evidence for understanding the complex relationship between individual well-being, happiness, and economic behavior.

Sources of text and images include but are not limited to:
Wikipedia (Bernard van Praag - Wikipedia)
Wikipedia (Ada Ferrer-i-Carbonell - Wikipedia)
https://christiaanhuygensprijs.nl/bernard-van-praag_300_421a/
Ada Ferrer-i-Carbonell | Barcelona School of Economics