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Voting models in credit rating agencies

Bijlsma, A.N. (2015) Voting models in credit rating agencies. Bachelor's Thesis, Industrial Engineering and Management.

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Abstract

In order to apply for a loan, a bank or a company needs to be rated by a credit rating agency. Within such a credit rating agency there is a rating committee which determines whether a bank or company is creditworthiness and can receive the loan. To describe the voting process, a voting model can be used. One of these voting models studies how people change their opinion throughout several voting rounds. The model which is used does not take into account the different ties people can have with each other. In this bachelor’s integration project, a closer look is taken at how people change their opinion as a result of using different ties between people. There has been made a distinction between different numbers of unidirectional and mutual directional ties between committee members. Furthermore the results of using strong and weak ties have been studied. What has been found is that clusters can appear when there are few unidirectional ties between committee members. When there are many ties between members, regardless whether the ties are unidirectional or mutual directional, clusters will occur rarely. Besides this, when using a hierarchical influence structure, the convergence will become much slower when there are more ties between the members.

Item Type: Thesis (Bachelor's Thesis)
Degree programme: Industrial Engineering and Management
Thesis type: Bachelor's Thesis
Language: English
Date Deposited: 15 Feb 2018 08:05
Last Modified: 15 Feb 2018 08:05
URI: http://fse.studenttheses.ub.rug.nl/id/eprint/12996

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