The theoretical prediction of target exchange rates expects mean reversion of the exchange rates. This paper presents a model for valuing European foreign exchange options, in which the forward foreign exchange rate follows a mean-reverting lognormal process. The mean-reverting process has...

This paper proposes a path-dependent approach for estimating realignment probabilities of targeted exchange rates based on first-passage-time distributions instead of the commonly used path-independent approach. We consider that path dependency is an intrinsic characteristic of realignment risk...

This paper assesses whether agency ratings and market-based default risk measures are consistent for East Asian banks during the period 1996 to 2006. While the market-based measures are broadly consistent with the credit rating assessments for banks in developed economies, the discrepancy...

This paper proposes a path-dependent approach for estimating maximum appreciations of the renminbi expected by the market based on first-passage-time distributions. Using market data of the renminbi spot exchange rates, non-deliverable forward rates and currency option prices from 21 July 2005...

Following the bankruptcy of Lehman Brothers in mid-September 2008, there were severe disruptions in international money markets and banks reportedly faced severe liquidity shocks, in particular US-dollar funding shortages, prompting central banks around the world to adopt unprecedented policy...

This paper investigates the determinants of variations in the yield spreads (swap spreads) between Hong Kong dollar interest rate swaps and Exchange Fund paper for a period from July 2002 to April 2008. A vector error-correction model is used to analyse the impact of various shocks on swap...

Under the framework of Basel II, banks which adopt the internal ratings-based approach will be required to compare their actual provisions with expected losses. Any shortfall (i.e., the expected loss exceeds the provision) should be deducted from capital of the bank. It is therefore important to...

This study develops a stress-testing framework to assess liquidity risk of banks, where liquidity and default risks can stem from the crystallisation of market risk arising from a prolonged period of negative asset price shocks. In the framework, exogenous asset price shocks increase banks¡¯...

The empirical results show that after the introduction of the three refinements to the Linked Exchange Rate system in May 2005 the Hong Kong dollar follows a bounded process that is consistent with a fully credible exchange rate band. The bounded process will limit the movements of the exchange...

This paper develops a simple model for measuring the provision for a pool of collateralised retail loans with homogenous characteristics (i.e. the same type of collateral and broadly the same loan-to-value ratio) due to default, where the collateral coverage is treated as a put option with the...