This Paper argues that the efficiency distribution of players in a game determines how aggressively these players interact. We formalize the idea of balance of power: players fight very inefficient players but play softly versus equally (or more) efficient players. This theory of conduct...

We study from both a theoretical and an empirical perspective how a network of military alliances and enmities affects the intensity of a conflict. The model combines elements from network theory and from the politico-economic theory of conflict. We postulate a Tullock contest success function...

This paper studies the stability of coordination between mission-driven non-governmental organizations (NGOs) competing for donations. We build a non-cooperative game-theoretic model of alliance formation between NGOs that compete through fundraising activities and impose externalities on each...

In this paper we characterize a situation in which non-calculative trust has to play a role in the decision to cooperate. We then analyse the given situation in game theoretical terms and distinguish those aspects of players’ decisions that are cooperative from those that may be interpreted as...

Hierarchy can function as an instrument to channel influence activities or power struggles in organizations. Contrary to what has frequently been argued, we show that multi-divisional organizations may involve lower influence costs than single-tier organizations, even though they offer more...

We construct a dynamic theory of civil conflict hinging on inter-ethnic trust and trade. The model economy is inhabitated by two ethnic groups. Inter-ethnic trade requires imperfectly observed bilateral investments and one group has to form beliefs on the average propensity to trade of the other...

This paper investigates the effects of ethnic violence on export-oriented firms and their workers. Following the disputed 2007 Kenyan presidential election, export volumes of flower firms affected by the ensuing violence dropped by 38 percent and worker absence exceeded 50 percent. Large firms...

During the Greek debt crisis after 2010, the German government insisted on harsh austerity measures. This led to a rapid cooling of relations between the Greek and German governments. We compile a new index of public acrimony between Germany and Greece based on newspaper reports and internet...

This paper investigates whether the 9/11 attacks will have a long-term impact by altering the fertility and assimilation rate of immigrants from Muslim countries in the United States. Terror attacks by Islamic groups are likely to induce a backlash against the Muslim community, and therefore,...

There has been a wide-spread belief that elections with a wide franchise following removal of an oppressive dictator lead to establishment of a government that is not vulnerable to mass protest. At the same time, most of the post-World War II non-constitutional exits of recently-installed...