The lack of portfolio granularity in terms of exposure has been shown to have important implications for the amount of a financial institution's economic capital. Based on a numerical simulation model, we provide concrete examples of how granularity affects capital levels. We achieve this by...

Bank capital requirements are based on a mix of market values and book values. We investigate the effects of a policy change that ties regulatory capital to the market value of the "available-for-sale" investment securities portfolio for some banking organizations. Our analysis is based on...

This paper empirically investigates how risk exposure of security holdings affected the optimal choice of total risk weighted asset under Basel II regulation. With costly recapitalization cost, banks optimally choose buffer regulatory capital above the minimum standard. Therefore, security...

The article deals with the liquidity risk in the banks in the context of the financial crisis. At first, the balance sheet and market liquidity are defined and the main principles of the methods for measuring liquidity risk, which banks use, are identified. Then follow review of main challenges...

This paper develops a model of banking to study the risk-taking consequences of contingent capital (CC). It begins with the observation that partial conversion of CC provides its owners with a portfolio of equity and debt. Since the former (latter) asset typically induces a preference for risk...

We propose an improved methodology for modelling potential scenario paths of banks' riskweighted assets, which drive the denominator of capital adequacy ratios. Our approach centres on modelling the internal risk structure of bank portfolios and thus aims to provide more accurate estimations...

Regulatory capital for trading book positions includes two components that cover different risks but apply to the same portfolio, one for market risk and one for credit risk. Similar approaches are common in banks’ internal models for economic capital. Although it is known that joint market...

Our paper addresses firm size as a driver of systematic credit risk in loans to small and medium enterprises (SMEs). Key contributions are the use of a unique data set of SME lending by over 400 German banks and relating systematic risk to the size dependence of regulatory capital requirements....

Non-maturing banking products are important asset and liability positions of banks. Their complexity inter alia arises from a non-trivial pass-through from market to product rates which makes the valuation and risk analysis challenging for both banks and banking supervisors. Based on a large...