This paper undertakes the issue of portfolio insurance from the perspective of a risk-averse agent requiring his financial wealth to grow at a floored rate in excess of an equity benchmark. The suggested solution is a generalization of the CPPI approach within a two-equity asset framework. The...

In many research papers the research methodology section gives details of the context and data gathering strategy however the data analysis process often remains a mystery. In an aim to increase collective reflection on data analysis, this article adds to emerging literature on the subject....

This paper presents an analysis on the sensitivity of the Dutch interbank payment system with respect to the value transferred and the amount of available collateral. The Dutch system can be characterised as a system with a few large and many relatively small participants.Historical data has...

This paper assesses the impact of an operational failure at one of the biggest participants in the Dutch interbank payment system, varying the time at which the disruption takes place. Liquidity levels equal historical levels. The impact of such a disruption is quantified in terms of the...

We consider a model in which any investment opportunity is described in terms of cash flows. We don't assume that there is a numéraire, enabling investors to transfer wealth through time; the time horizon is not supposed to be finite and the investment opportunities are not specifically related...

In many real-world group decision making problems, the set of alternatives is a Cartesian product of finite value domains for each of a given set of variables (or issues). Dealing with such domains leads to the following well-known dilemma: either ask the voters to vote separately on each issue,...

This work consists of two parts. In the first one, we study a model where the assets are investment opportunities, which are completely described by their cash-flows. Those cash-flows follow some binomial processes and have the following property called stationarity: it is possible to initiate...

In many practical contexts where a number of agents have to find a common decision, the votes do not come all together at the same time. In such situations, we may want to preprocess the information given by the subelectorate (consisting of the voters who have expressed their votes) so as to...

Voting on multiple related issues is an important and difficult problem. The key difficulty is that the number of alternatives is exponential in the number of issues, and hence it is infeasible for the agents to rank all the alternatives. A simple approach is to vote on the issues one at a...