OPERATIONAL RISK ASSESSMENT USING BAYESIAN INFERENCE WITH REGARD TO THE COMPOSITION OF DATA SOURCES AND THE ASSUMPTION OF DEPENDENCE BETWEEN EXPERTS AND INTERNAL LOSS DATA

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OSTADI BAKHTIAR; KHAZAYI SAJAD; HOSEINZADEH KASHAN ALI

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Journal: JOURNAL OF FINANCIAL MANAGEMENT STRATEGY Year:2018 | Volume:6 | Issue:20 Page(s): 53-72

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Title

OPERATIONAL RISK ASSESSMENT USING BAYESIAN INFERENCE WITH REGARD TO THE COMPOSITION OF DATA SOURCES AND THE ASSUMPTION OF DEPENDENCE BETWEEN EXPERTS AND INTERNAL LOSS DATA

Author(s)

OSTADI BAKHTIAR | KHAZAYI SAJAD | HOSEINZADEH KASHAN ALI | Issue Writer Certificate

Keywords

OPERATIONAL RISKQ1

BAYESIAN INFERENCEQ1

LOSS DISTRIBUTION APPROACHQ1

COPULAQ1

Abstract

In order to measure hedge funds operating under the wings of two documented, many financial institutions tend to use the LOSS DISTRIBUTION APPROACH. But a LOSS DISTRIBUTION APPROACH requires a large number of internal loss data in order to have the necessary performance, so due to limitations in the database operating losses and the cost of internal loss data collection, in order to increase performance and reliability the OPERATIONAL RISK capital should be calculated from other data sources used for OPERATIONAL RISK. The biggest challenge facing financial institutions is how to combine different data sources of OPERATIONAL RISK. In this regard, expressed in this research has been how to combine a variety of data source. So, in this paper the parameter estimation of frequency of OPERATIONAL RISK LOSS DISTRIBUTION APPROACH using BAYESIAN INFERENCE is explored. In this research, assuming dependencies between data sources, OPERATIONAL RISK, the experts and internal loss data is intended. To validate the estimated models for the posterior distribution of numerical tests of goodness of fit is used. In addition, to calculate dependencies between data sources, detailed functions family of Gauss is used. The results indicate that with the assumption of experts dependence between the source data and internal data loss, by increasing the number of predictive parameters, frequency distribution, reduced the value of the parameter distribution, which represents a decrease of profile risk over time.

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APA: Copy

OSTADI, BAKHTIAR, KHAZAYI, SAJAD, & HOSEINZADEH KASHAN, ALI. (2018). OPERATIONAL RISK ASSESSMENT USING BAYESIAN INFERENCE WITH REGARD TO THE COMPOSITION OF DATA SOURCES AND THE ASSUMPTION OF DEPENDENCE BETWEEN EXPERTS AND INTERNAL LOSS DATA. JOURNAL OF FINANCIAL MANAGEMENT STRATEGY, 6(20 ), 53-72. SID. https://sid.ir/paper/261610/en

Vancouver: Copy

OSTADI BAKHTIAR, KHAZAYI SAJAD, HOSEINZADEH KASHAN ALI. OPERATIONAL RISK ASSESSMENT USING BAYESIAN INFERENCE WITH REGARD TO THE COMPOSITION OF DATA SOURCES AND THE ASSUMPTION OF DEPENDENCE BETWEEN EXPERTS AND INTERNAL LOSS DATA. JOURNAL OF FINANCIAL MANAGEMENT STRATEGY[Internet]. 2018;6(20 ):53-72. Available from: https://sid.ir/paper/261610/en

IEEE: Copy

BAKHTIAR OSTADI, SAJAD KHAZAYI, and ALI HOSEINZADEH KASHAN, “OPERATIONAL RISK ASSESSMENT USING BAYESIAN INFERENCE WITH REGARD TO THE COMPOSITION OF DATA SOURCES AND THE ASSUMPTION OF DEPENDENCE BETWEEN EXPERTS AND INTERNAL LOSS DATA,” JOURNAL OF FINANCIAL MANAGEMENT STRATEGY, vol. 6, no. 20 , pp. 53–72, 2018, [Online]. Available: https://sid.ir/paper/261610/en

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