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Dynamic Credit Quality Evaluation with Social Network Data

Patrick Weke (), Stanley Sewe () and Philip Ngare ()

Journal of Applied Mathematics, 2019, vol. 2019, 1-11

Abstract: We investigate the filtering problem where the borrower’s time varying credit quality process is estimated using continuous time observation process and her (in this paper we refer to the borrower as female and the lender as male) ego-network data. The hidden credit quality is modeled as a hidden Gaussian mean-reverting process whilst the social network is modeled as a continuous time latent space network model. At discrete times, the network data provides unbiased estimates of the current credit state of the borrower and her ego-network. Combining the continuous time observed behavioral data and network information, we provide filter equations for the hidden credit quality and show how the network information reduces information asymmetry between the borrower and the lender. Further, we consider the case when the network information arrival times are random and solve stochastic optimal control problem for a lender having linear quadratic utility function.

Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnljam:8350464

DOI: 10.1155/2019/8350464

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