Motivated by recent examples of collective effort on the war on terror, we examine the incentives that retaliation may produce for the endogenous formation of an international counterterror coalition. We show that there are quite reasonable circumstances under which any nation that is a target...

The paper investigates whether there is a causal link between poverty or low education and participation in politically motivated violence and terrorist activities. After presenting a discussion of theoretical issues, we review evidence on the determinants of hate crimes. This literature finds...

We study the role of perceived threats from other cultures induced by terrorist attacks and by a criminal event on public discourse and voters’ support for radical right parties. We first develop a rule which allocates Twitter users in Germany to electoral districts and then use a machine...

Motivated by the challenge in the director turnover literature to distinguish between board-initiated dismissals (i.e., ‘clean house’) and director-initiated departures (i.e., ‘jump ship’), we study director turnover in firms local to terrorist attacks (hereafter, TA firms). We argue...

This paper investigates the nature of U.S. fiscal policy in the aftermath of 9/11. We argue that the recent dramatic fall in the government surplus and the large fall in tax rates cannot be accounted for by either the state of the U.S. economy as of 9/11 or as the typical response of fiscal...

A three-stage game investigates how counterterrorism measures are affected by volunteers’ choice in joining a terrorist group. In stage 1, the government chooses both proactive and defensive countermeasures, while looking ahead to the anticipated size and actions of terrorist groups. After...

This article models the geography of the 9/11 network member’s many travels from the moment the hijackers first boarded a plane to the United States until they killed 2,977 people on September 11, 2001. Building on publicly available sources, and for the first time in the literature, we...

We compare the realised impact of terrorism and disasters linked to natural hazards. Using fifty years of data from two databases covering 99 percent of the global population, we find that natural hazard disasters were more then 20 times more impactful than terrorism. The former had a larger...

Central to the United States government’s strategy after the September 11th attacks has been a shift from punishing unlawful conduct to pre-empting possible or potential dangers. This strategy threatens to undermine fundamental principles of both constitutional law and international law which...