Collusion in auctions for emission permits: An experimental analysis

Environmental markets have several institutional features that provide a new context for the use of auctions and that have not been studied previously. This paper reports on laboratory experiments testing three auction forms—uniform and discriminatory price sealed‐bid auctions and an ascending clock auction. We test the ability of subjects to tacitly or explicitly collude in order to maximize profits. Our main result is that the discriminatory and uniform price auctions produce greater revenues than the clock auction, both with and without explicit communication. The clock appears to facilitate successful collusion, both because of its sequential structure and because it allows bidders to focus on one dimension of cooperation (quantity) rather than two (price and quantity).© 2009 by the Association for Public Policy Analysis and Management.     

Utilizing Hyperlink Network Analysis to Examine Climate Change Supporters and Opponents

Hyperlink network analysis, which utilizes the links between websites to map online communication structures, offers an emerging methodology for studying the networks of supporters and opponents of public policies. Reasons for the methodology's appeal include the ability to utilize web crawlers to collect large amounts of data and the ability to apply quantitative and qualitative methods to examine network interactions. While the methodology has been utilized by diverse disciplines it is relatively new to the fields of political science and public policy. Utilizing a mixed‐methods research design, this article examines the applicability of using hyperlink networks to study opposing groups in the Colorado climate and energy policy subsystem while drawing increased attention to the methodology's strengths and weaknesses. The results demonstrate the methodology's considerable potential, but highlight the need for greater adoption of a collection of best practices designed to increase the validity, reliability, and generalizability of hyperlink research.     

An example of the use of forensic palynology in assessing an alibi

A man was found shot in the back on Mount Holdsworth in the Tararua Ranges north of Wellington, the capital city of New Zealand. Police investigations pinpointed one individual who had been seen in the area, knew, and had the means and motive to kill the victim. His alibi was that an eyewitness was mistaken as he never had been in the area and the jacket he was reported to have been wearing had been purchased in The Netherlands and brought to Wellington, where it never had left the city. Furthermore the distinctive board shorts that he was reported to have been wearing had been purchased in a small coastal New Zealand town after the victim had been murdered. Pollen of Nothofagus menziesii, a mountain plant, on the clothing suggested that the alibi was untrue and that the clothing had been in mountains in the vicinity of Mount Holdsworth or a similar mountain scene where Nothofagus menziesii was growing.     

The role of perfectionism and autobiographical memory in a sample of parasuicide patients: an exploratory study

The main objective of this study was to investigate the relationship between social perfectionism, overgeneral autobiographical memory recall, and psychological distress (hopelessness, depression/anxiety, and suicidal ideation) in a sample of parasuicide patients. Forty patients who had been admitted to a Scottish hospital following an episode of deliberate self-harm participated in the study. The participants completed the autobiographical memory task and a battery of self-report measures (multidimensional perfectionism, hopelessness, depression/anxiety, and suicidal ideation). The results showed that repetitive self-harmers were more overgeneral in their recall of positive autobiographical memories than were first-time self-harmers. Hierarchical regression analyses showed that socially prescribed perfectionism interacted with overgeneral recall of both positive and negative memories to predict suicidal ideation/depression. The findings are discussed in relation to previous research.     

Coerced work during parole: Prevalence,mechanisms, and characteristics

Coerced work on parole occurs when people are required to work under the threat of criminal legal repercussions. In the face of barriers to “good” work for people after prison, coercion helps to funnel parolees into positions at the bottom of the labor market. Parolee workers in these positions experience issues common to precarious, low-wage work (low pay, hazardous working conditions, and labor law violations), as well as heightened vulnerability to predatory employers and exposure to parole-prohibited activities. Because of the threat-backed requirements to work, however, parolees must choose to either accept this “bad” work or face potential sanctions. Using mixed-methods, including a novel form of respondent-driven sampling I call “Hybrid-RDS,” this article documents the prevalence of coerced work for people on parole in Los Angeles County, identifies the mechanisms through which coercive work operates, and illustrates the problematic employment conditions of coerced work after prison.     

The Dark Matter of Terrorism

The consequences of states’ reactions to terrorist attacks can far outweigh the effects of the attacks themselves. Yet risk analysis, widely accepted as the proper analytical basis for assessing terrorist threats, largely ignores the consequences from potential reactions to attacks. It also generally fails to consider how the anticipation of these reactions may influence terrorists’ attack preferences. Policymakers should therefore be wary of the limitations of risk analysis as currently practiced. Further, states should strive to avoid reactions to attacks that unwittingly further their adversaries’ agendas, a goal that may be aided by strengthening public resilience to terrorism.