In order to be able to devise successful strategies for destabilizing terrorist organizations it is vital to recognize and understand their structural properties. This paper deals with the opti- mal communication structure of terrorist organizations when considering the tradeoff between secrecy...

Subject classifications: Terrorism; Counterinsurgency; Intelligence; Defense; Covert networks; Affiliation networks.

Covert organizations are constantly faced with a tradeoff between secrecy and operational efficiency. Lindelauf, Borm and Hamers (2008) developed a theoretical framework to deter- mine optimal homogeneous networks taking the above mentioned considerations explicitly into account. In this paper...

We look at the implications of uncertain monetary policy preferences for the targeting and contracting approach to monetary stability. It turns out that in presence of uncertain preferences a linear incentive contract in the sense of Walsh (1995) performs better in terms of social welfare than...

The art market is subject to frequent booms and busts in both prices and volume,<br/>which are difficult to reconcile with models where agents are rational and<br/>hold homogenous beliefs. This paper shows that (i) volume is mainly driven by<br/>speculative transactions; (ii) positive price-volume correlation...

The riskless nature in real terms of inflation-linked bonds has led to the conclusion that inflation-linked bonds should constitute a substantial part of the optimal investment portfolio of long-term investors.This conclusion is reached in models where investors do not receive labor income...

Stock markets and betting markets co-exist for professional soccer clubs listed on the London Stock Exchange.For each firm, two pieces of information are released to the stock market on a weekly basis from August to June: experts expectations about game outcomes through the betting odds, and the...

In this paper we argue that in realistically calibrated two period general equilibrium models with incomplete markets CAPM-pricing provides a good benchmark for equilibrium prices even when agents are not mean-variance optimizers and returns are not normally distributed. We numerically...