Mostly Sunny: A Forecast of Tomorrow's Power Index Research

Kurz, Sascha; Maaser, Nicola; Napel, Stefan; Weber, Matthias

doi:10.2139/ssrn.2435041

Cited by 12 publications

(9 citation statements)

References 64 publications

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“…The generating function approach dates back at least to [8], where it was applied onto the electoral college. 5 For the IMF Board of Governors we have q = 0.85·C, so that we obtain an acceleration of a factor of 0.85/0.15 ≈ 5.67.…”

Section: Preliminariesmentioning

confidence: 98%

Computing the Power Distribution in the IMF

Kurz

2016

SSRN Journal

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The International Monetary Fund is one of the largest international organizations using a weighted voting system. The weights of its 188 members are determined by a fixed amount of basic votes plus some extra votes for so-called Special Drawing Rights (SDR). On January 26, 2016, the conditions for the SDRs were increased at the 14th General Quota Review, which drastically changed the corresponding voting weights. However, since the share of voting weights in general is not equal to the influence, of a committee member on the committees overall decision, so-called power indices were introduced. So far the power distribution of the IMF was only computed by either approximation procedures or smaller games than then entire Board of Governors consisting of 188 members. We improve existing algorithms, based on dynamic programming, for the computation of power indices and provide the exact results for the IMF Board of Governors before and after the increase of voting weights. Tuned low-level details of the algorithms allow the repeated routine with sparse computational resources and can of course be applied to other large voting bodies. It turned out that the Banzhaf power shares are rather sensitive to changes of the quota.

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Section: Preliminariesmentioning

confidence: 98%

Computing the Power Distribution in the IMF

Kurz

2016

SSRN Journal

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“…As argued in [18,Section 4] the availability of easy-to-use software packages to compute power indices can limit their application, e.g., for the nucleolus. While this is understandable from a practical point of view, this should not be a desireable selection criterion for the choice of an appropriate power index.…”

Section: Beauty and Generalizabilitymentioning

confidence: 99%

Which Criteria Qualify Power Indices for Applications? A Comment to 'The Story of the Poor Public Good Index'

Kurz

2018

SSRN Journal

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“…There has been a great deal of work on formal analysis of voting games. We refer the reader to Felsenthal and Machover (1998) and Laruelle and Valenciano (2011) for details and the surveys (Napel 2016;Kurz et al 2015) for discussions on the various topics in the area. A textbook level introduction to the area can be found in Chakravarty et al (2015).…”

Section: Introductionmentioning

confidence: 99%

Weighted voting procedure having a unique blocker

Bhattacherjee

Sarkar

2021

Int J Game Theory

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The Goods and Services Tax (GST) Council of India has a non-conventional weighted voting procedure having a primary player who is a blocker and a set of secondary players. The voting weights are not fixed and are determined based on the subset of players which participate in the voting. We introduce the notion of voting schema to formally model such a voting procedure. Individual voting games arise from a voting schema depending on the subset of secondary players who participate in the voting. We make a detailed formal study of the trade-off between the minimal sizes of winning and blocking coalitions in the voting games that can arise from a voting schema. Finally, the GST voting procedure is assessed using the theoretical results leading to suggestions for improvement.

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Mostly Sunny: A Forecast of Tomorrow's Power Index Research

Cited by 12 publications

References 64 publications

Computing the Power Distribution in the IMF

Computing the Power Distribution in the IMF

Which Criteria Qualify Power Indices for Applications? A Comment to 'The Story of the Poor Public Good Index'

Weighted voting procedure having a unique blocker

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