Monopoly rent seeking under conditions of uncertainty

In recent years, economists have come to recognize that the competition to obtain monopoly rents, i.e., rent seeking, may consume resources whose value greatly exceeds that associated with traditionally measured deadweight welfare loss triangles (Tollison, 1982). Early articles by Tullock (1967), Krueger (1974), and Posner (1975) all concluded that this competition would exactly dissipate the rents sought. Later articles by Tullock (1980) and Baysinger and Tollison (1980) modified that original conclusion. The present paper develops a model which raises further doubts about the complete transformation of rents into costs. The emphasis of the analytical framework presented is on the implications of the fact that rent seekers may typically be uncertain about being able to maintain a monopoly position even if they are initially successful in attaining one. It is demonstrated that when there is even a moderate level of uncertainty about retention, the likely effect will be a relatively large reduction in the magnitude of resources invested in rent seeking activities. In addition, it is shown that the size of this waste of resources depends somewhat on the extent to which rent seeking opportunities involve once and for all transfers as opposed to flows of rents. Finally, in those cases where a flow of rents is at stake, it is shown that considerable social waste might be eliminated through institutional changes which would reduce the subjective probabilities of potential monopolists retaining their rent streams once attained.     

Motor-vehicle collision-related death due to delayed-onset subarachnoid hemorrhage associated with anticoagulant therapy

Delayed deaths following injury are not rare. Various mechanisms may be responsible for such deaths, including pulmonary thromboembolism, fat embolism, infection, systemic inflammatory response syndrome, and delayed hemorrhage. In the present case, we describe a death due to delayed subarachnoid hemorrhage following a motor vehicle collision, wherein the hemorrhage occurred ten days after the incident, while the patient remained hospitalized for skeletal trauma. At no time prior to the hemorrhage did the victim show any symptoms of brain injury. Autopsy revealed basilar subarachnoid hemorrhage arising from a cerebral cortical contusion. There was no evidence of aneurysm or arteriovenous malformation. A significant underlying contributing factor in the delayed hemorrhage was the victim's chronic anticoagulant therapy, which was required because of a mechanical heart valve.     

Fingerprint detection on counterfeit US dollar banknotes: the importance of preliminary paper examination

Two seizures of counterfeit 100 US dollar bills related to the same indicative number were submitted for processing of latent fingerprints. On one group of notes, identifiable fingerprints could be detected by the routine application of amino acid reagents. In the second case, this technique gave no results, even on deliberately deposited prints. Fingerprints could be revealed, however, by cyanoacrylate fuming followed by magnetic powder. Comprehensive paper analysis showed that banknotes from both seizures differed remarkably by chemical composition as well as paper macroscopic properties. The difference in surface free energy (related to surface tension) of the banknotes in the two groups seemed to be the major factor responsible for the great variance in fingerprint detectability.     

Homicidal cerebral artery aneurysm rupture

When a normally natural mechanism of death is induced by physical injury or intense emotional stress, it is appropriate to rule the manner of death as something other than natural. When the case-specific circumstances are such that the death occurs as a result of the criminal activity of another person, it is acceptable to rule such deaths as homicides. Presented herein is a case of homicidal cerebral artery aneurysm rupture occuring in an intoxicated, 46-year-old man who was punched in the face by another individual. The details of the case are presented, followed by a discussion of the controversies that exist when dealing with such cases. Guidelines for investigating similar deaths are presented, with emphasis on the timing of the trauma in relation to onset of symptoms due to aneurysm rupture.     

‘Demonstrative Evidence’: A Genealogy of the Racial Iconography of Forensic Art and Illustration

This essay stages a critique of the unacknowledged racialising visual regimes that inform forensic pathologys typical body charts. In order to disclose these unacknowledged regimes, I stage a genealogy of the racialising iconography that continues to shape forensic pathologys visual texts. In drawing attention to the racialising visual conventions that constitute the contemporary production of caucacentric forensic body charts, I attempt to disrupt the scientifico-objective status of these visual artefacts in order to underscore their ideological effects. By focusing on the ontological/epistemological split between the corporeality of native informants and white knowledge workers, I underscore the white medico-legal professions historical transmuting of other bodies into objects of knowledge. I conclude by outlining the discursive effects of presenting forensic pathologys caucacentric body charts as demonstrative evidence within the court of law.This is an extended version of an essay first presented at the Association for the Study of Law, Culture, and the Humanities Conference, Cardozo Law School, New York University, New York, USA, March 2003. My thanks to Peter Goodrich and Penelope Pether for their generous enthusiasm and support.