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Social Welfare Function Approach to Inequality Measurement

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dc.date.accessioned 2016-08-30T05:38:32Z und
dc.date.accessioned 2017-10-24T12:22:06Z
dc.date.available 2016-08-30T05:38:32Z und
dc.date.available 2017-10-24T12:22:06Z
dc.date.issued 2016-08-30T05:38:32Z
dc.identifier.uri http://radr.hulib.helsinki.fi/handle/10138.1/5730 und
dc.identifier.uri http://hdl.handle.net/10138.1/5730
dc.title Social Welfare Function Approach to Inequality Measurement en
ethesis.discipline Applied Mathematics en
ethesis.discipline Soveltava matematiikka fi
ethesis.discipline Tillämpad matematik sv
ethesis.discipline.URI http://data.hulib.helsinki.fi/id/2646f59d-c072-44e7-b1c1-4e4b8b798323
ethesis.department.URI http://data.hulib.helsinki.fi/id/61364eb4-647a-40e2-8539-11c5c0af8dc2
ethesis.department Institutionen för matematik och statistik sv
ethesis.department Department of Mathematics and Statistics en
ethesis.department Matematiikan ja tilastotieteen laitos fi
ethesis.faculty Matematisk-naturvetenskapliga fakulteten sv
ethesis.faculty Matemaattis-luonnontieteellinen tiedekunta fi
ethesis.faculty Faculty of Science en
ethesis.faculty.URI http://data.hulib.helsinki.fi/id/8d59209f-6614-4edd-9744-1ebdaf1d13ca
ethesis.university.URI http://data.hulib.helsinki.fi/id/50ae46d8-7ba9-4821-877c-c994c78b0d97
ethesis.university Helsingfors universitet sv
ethesis.university University of Helsinki en
ethesis.university Helsingin yliopisto fi
dct.creator Lindroth, Meri Ida Johanna
dct.issued 2016
dct.language.ISO639-2 eng
dct.abstract The concept of economic inequality necessarily encompasses a dimension of social welfare, for otherwise it is just the dispersion of values in a distribution. If we agree that inequality is a potential source of welfare loss in a society, our interest naturally turns towards measuring it and studying what causes or affects it. Dalton (1920) pointed out that underlying any measure of inequality is some concept of social welfare and as such, all measures imply a value judgment towards its very definition. The social welfare approach, however, is the only approach that makes this judgment explicit. This thesis begins by introducing central concepts of inequality measurement. A coverall term 'income' is typically used to compress a set of personal attributes, ones that contribute to the individual's economic status in the society, into a single parameter. All individuals are thought to hold preferences towards equality, which are then aggregated into a social welfare function. To give a useful presentation of these preferences, the social welfare function needs to satisfy a number of basic properties that are discussed later in the thesis. The inequality measurement literature takes interest, above all, in what causes inequality, how it develops in time and whether we can say that it is more prevalent in one society than in another. Two general objectives can be identified: that of ranking different distributions, and that of quantifying the degree of inequality in a given distribution. A well-known graphical representation of inequality in an income distribution, the Lorenz curve, gives a standard tool of comparing different distributions regarding their level of inequality. However, a 'one size fits all' approach to ranking distributions still does not exist. To begin the discussion on quantifying the amount of inequality in a given distribution, the basic axioms of inequality measurement are introduced. They form the basis of the so-called axiomatic approach to inequality measurement, and arguably any measure should satisfy these axioms. In contrast the so-called ad hoc measures of inequality are often bluntly borrowed from statistics to measure the dispersion in an income distribution, without justifying their validity as tools of inequality measurement. In closer inspection their use more often than not cannot be motivated from either a welfare theoretic or an axiomatic point of view. At last the approach of building inequality measures from 'scratch', based on social welfare theory, is introduced. The best known measures of this approach, the Dalton and Atkinson indices, are derived, followed by a discussion on their axiomatic properties. en
dct.language en
ethesis.language.URI http://data.hulib.helsinki.fi/id/languages/eng
ethesis.language English en
ethesis.language englanti fi
ethesis.language engelska sv
ethesis.thesistype pro gradu-avhandlingar sv
ethesis.thesistype pro gradu -tutkielmat fi
ethesis.thesistype master's thesis en
ethesis.thesistype.URI http://data.hulib.helsinki.fi/id/thesistypes/mastersthesis
dct.identifier.urn URN:NBN:fi-fe2017112252411
dc.type.dcmitype Text

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