Measuring Welfare an Alternative to GDP
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STOCKHOLM SCHOOL OF ECONOMICS Department of Economics 5350 Thesis in Economics Supervisor: Kelly Ragan Measuring Welfare An Alternative to GDP Birgit Altmann* May 15, 2013 Abstract: GDP per capita is generally used to compare welfare across countries and time. However, it faces significant limitations in serving as an appropriate welfare measure. Amongst others, GDP does not account for the distribution of wealth and omits important well-being determinants such as quantity and quality of life. In previous literature a consumption-equivalent model has been developed as an alternative welfare measure containing the factors life expectancy, consumption, leisure and inequality. The model is enhanced in this paper by incorporating the additional factors health and corruption. With this approach, living standards are compared across a broad set of countries both in levels and across time. The results show that for a significant proportion of countries this alternative welfare measurement differs substantially from the traditional GDP evaluation. For instance, life expectancy raises well-being in certain regions such as Western Europe, but considerably reduces welfare in Eastern Europe and Sub-Saharan Africa. In Latin America, inequality within countries is a crucial factor, whereas corruption is most detrimental in Africa. Welfare growth tends to be higher than income growth in the sample due to improvements in longevity, corruption and leisure time. Keywords: Welfare, well-being, living standards, alternative welfare measurement, GDP, comparative country studies JEL classification: D60, D63, I31, 057 Date of presentation: May 24, 2013 Examiner: Juanna Joensen Discussant: Carl Johan von Seth *[email protected] Acknowledgements I would like to thank my supervisor Kelly Ragan for her valuable advice and support throughout the entire course of writing this thesis. In addition, I want to thank Örjan Sjöberg for numerous enriching discussions on methodology and content, as well as David Domeij for helpful comments on the model. This thesis was written in cooperation with the Swedish Ministry of Finance, where I would like to thank especially Thomas Eisensee for his valuable input during the early stage of the project. Finally, I would like to express my gratitude to Irene Kögl, Meredith Smith and Peter Liebrich for reviewing my thesis and lingual corrections. All remaining errors are my own. ii Contents Contents List of Figures ................................................................................................................................. iv List of Tables ................................................................................................................................... iv List of Abbreviations ........................................................................................................................ v 1 Introduction ....................................................................................................................................... 1 2 Literature Review ............................................................................................................................... 4 2.1 Which Factors Determine Welfare? ......................................................................................... 4 2.2 Alternative Approaches to Measure Well-Being ...................................................................... 8 2.3 Statement of Purpose ............................................................................................................ 12 3 The Consumption-Equivalent Model ............................................................................................... 13 3.1 The Underlying Utility Function.............................................................................................. 13 3.2 Calculating Welfare Across Countries .................................................................................... 15 3.3 Calculating Welfare Across Time ............................................................................................ 18 3.4 Calibration .............................................................................................................................. 19 4 Data Sources ..................................................................................................................................... 21 5 Results and Discussion ..................................................................................................................... 25 5.1 Welfare Comparison Across Countries ................................................................................... 25 5.2 Welfare Comparison Across Time .......................................................................................... 32 5.3 Robustness ............................................................................................................................. 38 5.4 Limitations .............................................................................................................................. 43 6 Conclusion ........................................................................................................................................ 46 References ............................................................................................................................................ 48 Appendix A: Summary Statistics for Underlying Data ........................................................................... 56 Appendix B: Graphical Illustration of Underlying Data ......................................................................... 57 Appendix C: Regional Classification of Sample Countries ..................................................................... 59 Appendix D: Graphical Illustration of Results ....................................................................................... 60 Appendix E: Results for All Countries .................................................................................................... 64 iii Contents List of Figures Figure 1: Healthy Life Expectancy ......................................................................................................... 21 Figure 2: Welfare and Income in 2007 .................................................................................................. 26 Figure 3: Ratio of Welfare to Income, 2007 .......................................................................................... 27 Figure 4: Welfare Determinants in Major Regions, 2007 ..................................................................... 27 Figure 5: Average Annual Welfare and Income Growth Rates, 2000-2007 .......................................... 33 Figure 6: Difference between Average Annual Welfare and Income Growth, 2000-2007 ................... 34 Figure 7: Determinants for Welfare Growth in Major Regions, 2000-2007 ......................................... 35 Figure 8: Bribe Tax vs. CPI, 2005 and 2008 ........................................................................................... 42 Figure 9: Consumption Share ................................................................................................................ 57 Figure 10: Leisure Rate .......................................................................................................................... 57 Figure 11: Gini Coefficient..................................................................................................................... 58 Figure 12: Corruption Perception Index ............................................................................................... 58 Figure 13: Detailed Welfare Determinants in Major Regions, 2007 ..................................................... 60 Figure 14: Welfare Impacts of the Six Factors on Major Regions, 2007 ............................................... 61 Figure 15: Detailed Welfare Growth Determinants in Major Regions, 2000-2007 .............................. 62 Figure 16: Impact of Various Factors on Welfare Growth, 2000-2007 ................................................. 63 List of Tables Table 1: Summary Statistics, Welfare 2007 .......................................................................................... 25 Table 2: Results for Selected Regions, Welfare 2007 ........................................................................... 28 Table 3: Results for Selected Countries, Welfare 2007 ........................................................................ 30 Table 4: Summary Statistics, Average Annual Welfare Growth 2000-2007 ......................................... 33 Table 5: Results for Selected Regions, Annual Average Welfare Growth 2000-2007 .......................... 35 Table 6: Results for Selected Countries, Average Annual Welfare Growth 2000-2007........................ 36 Table 7: Summary Statistics, Robustness Check ................................................................................... 38 Table 8: Results for Sweden and Ecuador, Robustness Check Welfare 2007 ....................................... 39 Table 9: Results for Sweden and Ecuador, Robustness Check Welfare Growth 2000-2007 ................ 40 Table 10: Summary Statistics for the Levels Sample, Data for 2007 .................................................... 56 Table 11: Summary Statistics for the Growth Sample, Data for 2000 .................................................. 56 Table 12: Summary Statistics for the Growth Sample, Data for 2007 .................................................