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Purpose – The goal of this chapter is to assess the state of evidence examining and explaining trends and patterns in homicide clearances.

Design/methodology/approach – After reviewing the varying bodies of literature on homicide investigations and clearances, the author assesses the degree of support for the prevailing explanations of why some homicides are more likely to be solved than others. The author also use national data to evaluate several reasons for declining clearances.

Findings – Changes in the nature of homicide and deteriorating police–community relations are likely major contributors to declining clearance rates. The most consistent findings regarding patterns are the greater likelihood of clearance in homicides involving young children, contact weapons, residential locations, and killings not occurring in the course of another crime. Explanations relying on notions of victim devaluing generate the least support. There is considerable support for the legal factors approach and community-level explanations show promise. The findings regarding the role of forensic evidence are mixed. Smaller scale studies are beginning to help identify best practices for homicide investigations.

Originality/value – This chapter assesses several explanations for declining clearance rates and brings together divergent streams of research to summarize the current state of knowledge on homicide clearances, best practices in homicide investigations, and gaps to be filled by further studies.

Purpose – To present the argument that the paradigm of spontaneously self-ordering open adaptation is common to Hayek's thesis on the mind (The Sensory Order) and to his presentations of social science (the social order).

Methodology/approach – To show how Hayek's methodological stance for social science interrelates with his theoretical work in neuroscience and psychology, where the ‘connectionist’ paradigm is relevant to extensive writings upon the human condition.

Findings – •close parallels across biological, psychological and social adaptations give a basis for determining which methods are appropriate to gain knowledge about knowledge;•broad confirmation is evident that methods of proven worth to physical science have little relevance for the analysis of psychological and social phenomena, which are more complex than the phenomena of the material world.

Research limitations/implications – •that the social order rests upon common beliefs;•that no simple distinction separates subjective and objective knowledge;•that any drive for social science to match the precision of physical science is misguided;•that in seeking an objective focus, behaviourism eliminates crucial introspective insights upon motivation and goals.

Originality/value of paper – The presentation is one of exegesis showing the relevance of Hayek's seminal work in theoretical psychology to the broadest themes of human understanding and social adaptation.

Purpose – The CSI effect, as it is referenced in mainstream media, is a purported effect on public perceptions caused by the portrayal of forensics and investigations in popular entertainment programming. Despite the obvious popularity of the programs – a common source of blame for such effects and the focus of limited prior research – impacts on perceptions by way of media content must be viewed as a product of multiple internal and external factors, rather than a result of popularity and viewership alone.

Methodology – By examining the portrayal of programming within the context of contemporary news publications, this project focuses on the value and context of presentations of forensics television programming across media genres, highlighting the bidirectional flow of popular media cues through various influential media outlets and outlining the potential for resulting public effects.

Findings – The authors find that an increase in the overall media visibility of entertainment images of forensic science, coupled with news media's tendency to tie such images to real-world forensics on the local and national scenes given an absence of alternative sources for news-oriented stories, speak to the importance of the holistic examination of the role of CSI-related programming in influencing popular perceptions.

The Coase theorem is associated with Stigler because Stigler coined the term. The object of this paper is to show that Stigler’s Coase theorem is Stiglerian for deeper – namely, methodological – reasons. We argue that, convinced as he was by the importance of Coase’s message, Stigler also believed that this message – such as presented in “The Federal Communications Commission” (1959) or “The Problem of Social Cost” (1962) – was not scientific. Hence, he had to transform it into a theorem to give it a scientific dimension. This is what we try to show by presenting Stigler’s methodology and by confronting it to the methodology used in Coase’s articles.

In this chapter, the interplay between the development of the discipline, the development of the field of study, and the emergence of professional fields is examined using the example of mathematics. In connection with the formation of the modern research university, mathematics has emerged as an independent scientific discipline and as an independent field of study. In the process, mathematics attains a high degree of formalization and internal coherence. This is the basis for the penetration of mathematicians into more and more professional fields, even outside science. Real problems or real facts are reduced to aspects that are amenable to mathematical modeling by treating them as quantifiable parameters. As mathematics expands as a field of study, more and more professional sectors become applications of mathematical models. As a consequence, more mathematical fields of study are differentiating themselves, specializing in these application fields. This chapter analyzes this dynamic and its preconditions.