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Measuring The Risk In Risk Measures: The Case Of The Nigerian Foreign Exchange Market, K. Katata
Measuring The Risk In Risk Measures: The Case Of The Nigerian Foreign Exchange Market, K. Katata
Economic and Financial Review
As part of its mandate, the Central Bank of Nigeria (CBN) carried out a series of foreign exchange policy decisions from 2014 to 2016. This paper, therefore, evaluated model risk of two key risk measures, expected shortfall (ES) and value-at-risk (VaR), due to the CBN's policy decisions using daily data for the naira exchange rates covering 2010 to 2014, as well as, 2011 to 2015 for the respective policy resolutions. The risk measures were implemented using 6 different models, as the most common techniques used by regulators and practitioners. The implementation of Basel III recommends the switchover from VaR to …