In a model of evolution driven by conflict between societies more powerful states have an advantage. When the influence of outsiders is small we show that this results in a tendency to hegemony. In a simple example in which institutions differ in their “exclusiveness” we find that these...

We examine whether frontier rule, which disallows frontier residents from a recourse to formal institutions of conflict management and disproportionately empowers tribal elites, provides a more fragile basis for maintaining social order in the face of shocks. Combining a historical border...

In many situations there is a potential for conflict both within and between groups. Examples include wars and civil wars and distributional conflict in multitiered organizations like federal states or big companies. This paper models such situations with a logistic technology of conflict. If...

This study analyzes whether subjective well-being measures can explain variation in peaceful uprisings, in addition to the objective measures typically used in analyses of uprisings. Using a database combining data on uprisings and subjective well-being for 118 countries over the period 2007 to...

This paper studies state failure and governance in two conflict-states in the Middle East: Iraq and Somalia. Iraq is currently undergoing a social experiment under which a new form of government is being constructed after the passage of autocratic rule. The government envisaged is a...

At least since 1750 when Baron de Montesquieu declared "peace is the natural effect of trade," a number of economists and political scientists espoused the notion that trade among nations leads to peace. Employing resources wisely to produce one commodity rather than employing them inefficiently...

This paper analyses the transmission channels through which mass violent conflict and postconflict fragility affect households. It does so by pointing out how a fragile environment impairs a household's core functions, boundaries, and its choice of income generating activities. Furthermore, it...

We show that the recent rise in Afghan opium production is caused by violent conflicts. Violence destroys roads and irrigation, crucial to alternative crops, and weakens local incentives to rebuild infrastructure and enforce law and order. Exploiting a unique data set, we show that Western...

I critically review recent studies that estimate those costs of violence and conflict that can emerge among organized political groupings, from states, religious and ethnic organizations to guerillas and paramilitaries. The review includes studies that estimate direct and indirect costs due to...

We augment the canonical neoclassical model of trade to allow for interstate disputes over land, oil, water, or other resources. The costs of such disputes in terms of arming depend on the trade regime in place. Under either autarky or free trade, the larger country (in terms of factor...