This paper provides a critical analysis of the subadditivity axiom, which is the key condition for coherent risk … measures. Contrary to the subadditivity assumption, bank mergers can create extra risk. We begin with an analysis how a merger … rejected, since a subadditive risk measure, by definition, cannot account for such increased risks …

We analyze spectral risk measures with respect to comparative risk aversion following Arrow (1965) and Pratt (1964) on … widely-applied spectral Arrow-Pratt-measure is not a consistent measure of Arrow-Pratt-risk aversion. A decision maker with a … decision maker with a smaller spectral Arrow-Pratt-measure. We further show how a proper measure of Arrow-Pratt-risk aversion …

We consider the problem of determining an upper bound for the value of a spectral risk measure of a loss that is a … worst-case spectral risk measure of the loss with respect to the dependence between the factors. The MSP admits a …

returns of financial and other assets. This feature makes it an appealing candidate for the computation of value at risk and … expected shortfall measures, used by regulators, investors, portfolio managers and actuaries to measure and manage the risk … value at risk, expected shortfall and downside risk measures for asset values and returns based on the SGT distribution. An …

Funding liquidity risk has played a key role in all historical banking crises. Nevertheless, a measure based on … reveals funding liquidity risk. We can extract an insurance premium from banks' bids which we propose as measure of funding … liquidity risk. Using a unique data set consisting of all bids in the main refinancing operation auctions conducted at the ECB …

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 and credit risk of certain investments can be larger than the sum of risks … holdings or CDS portfolios – are also affected. There are realistic conditions under which credit risk (represented by ratings …

We investigate the trade-off between the risk-sharing gains enjoyed by more interconnected firms and the costs … resulting from an increased risk exposure. We find that when the shock distribution displays "fat" tails, extreme segmentation …

requirements are refined by adding a risk correction term that takes into account the interdependencies of the risks of different …

We show that any objective risk measurement algorithm mandated by central banks for regulated financial entities will …: continue regulating by enforcing risk measurement algorithms at the cost of occasional severe crises, regulate more severely … result in more risk being taken on by those financial entities than would otherwise be the case. Furthermore, the risks taken …