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Revisiting Zakat with a distribution of weighted Shapley value

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posted on 2023-07-03, 11:48 authored by Issam Tlemsani, Robin Matthews, Mohamed Ashmel Mohamed HashimMohamed Ashmel Mohamed Hashim

 

Purpose

This paper aims to extend the Shapley value (SV) into a discussion of Zakat, a Pillar of Islam. Lloyd Shapley was awarded the Nobel Prize in Economics in 2012. This study shows that their relationship is significant for all nations, that of levelling up. An important but neglected paper by Datta (1939) showed insights provided by the Power Law, or as it is sometimes called, the Pareto distribution, into the role of Zakat in raising the income of all above the subsistence level. The Pareto distribution describes the prevailing tendency. The SV illustrates the interdependence perspective of Zakat with the Pareto distribution, wealth, income and poverty. Payoffs apply equally to both givers and receivers. For this study’s purposes, payoffs are considered as transferable utilities. They are formed by individuals who willingly cooperate in society rather than atomistic individuals who act independently. Zakat represents the recognition that society needs to be cooperative rather than individualistic; people cooperate in groups or societies to create value. SV implications and axioms are evaluated with an illustration.

Design/methodology/approach

This study extends Datta’s approach by introducing distribution weights into the SV. The authors set out the concept of weighted Shapley values that retain the elements of randomness and marginal contribution to a coalition contained in pure/true SVs and weights that follow a ley-Pareto distribution. This paper is a viewpoint work that relies primarily on the author’s qualitative interpretation.

Findings

The findings indicate that individual members of a coalition make multiple contributions that are often unrewarded. The contribution of one member of a coalition is dependent upon the contribution of others. The measure of contributions is payoffs, which have both monetary and non-monetary aspects; transferable payoffs or utilities are usually assumed. Furthermore, the significant agents in society or an organisation are stakeholders rather than the usual categories: managers, staff, shareholders, etc.

Practical implications

Contextualising these concepts within the Islamic values and principles that guide Zakat administration is crucial to ensure that the distribution of Zakat funds is fair, equitable and meets the needs of all eligible recipients. By applying these concepts appropriately, Zakat administrators can ensure that the Zakat system functions effectively and fulfils its religious obligation.

Originality/value

The novelty of this paper is that it blends the SV and the idea behind Zakat by introducing the idea of alternatives of Shapley weights. The link between the institution of Zakat and SV in terms of equality, poverty elimination and wealth distribution should be at the top of the research agenda.

History

Published in

International Journal of Islamic and Middle Eastern Finance and Management

Publisher

Emerald

Version

  • AM (Accepted Manuscript)

Citation

Tlemsani, I., Matthews, R. and Mohamed Hashim, M.A. (2023) 'Revisiting Zakat with a distribution of weighted Shapley value', International Journal of Islamic and Middle Eastern Finance and Management. https://doi.org/10.1108/IMEFM-11-2022-0430

Print ISSN

1753-8394

Cardiff Met Affiliation

  • Cardiff School of Management

Cardiff Met Authors

Mohamed Ashmel Mohamed Hashim

Cardiff Met Research Centre/Group

  • Welsh Centre for Business and Management Research

Copyright Holder

  • © The Publisher

Language

  • en

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