Life-cycle effects on social pressure to vote

Recent scholarship reveals social pressure can compel citizens to conform to social norms like voting in elections. In this study, we investigate heterogeneity in the impact of social pressure to vote. We find that age, a key demographic characteristic, moderates the impact of social pressure. Using evidence from a large-scale randomized field experiment conducted in August 2006, we show that older voters are significantly more responsive to social pressure compared to younger voters. Given the emerging consensus that social pressure can be marshaled effectively to stimulate voting in elections, such investigations yield critical insights of both practical and theoretical significance.     

Do impersonal mobilisation methods work? Evidence from a nationwide Get-Out-the-Vote experiment in England

While face-to-face mobilisation has a demonstrable effect on voter turnout, a series of field experiments show that impersonal methods, such as telephoning and direct mail, are less effective. This paper provides a new test of the effectiveness of telephone and direct mail on voter turnout, which uses a large nationally representative Get-Out-the-Vote two-wave field experiment. We find that impersonal methods are more effective, though the magnitude depends on electoral context. Moreover, these effects accumulate both within and across elections as voters are exposed to multiple contacts. However this is an incremental and cumulative process, not the product of synergy.     

当前打击经济领域犯罪的思考

我国正处在经济发展和社会转型的关键时期,经济犯罪的大量产生严重危害了社会经济秩序,造成了巨大的财产损失.然而,打击经济犯罪存在许多现实困难,公安机关也应调整策略,增强打击力度.     

A forensic visual aid: Traces versus knowledge

In this paper, I introduce the Forensic Field Map (FFM) that provides a two-dimensional view on the forensic field. This field is by definition very broad, encompassing a wide range of scientific areas and activities. The forensic work that supports solving criminal cases ranges from recognizing and preserving traces at crime scenes to explaining forensic results as expert witness in court. This goes hand in hand with the development of scientifically based methods and tooling as well as legal, forensic and laboratory procedures. Although the FFM came into being while developing a (visual) framework for digital forensic investigations, the framework turned out to be generically applicable to other forensic disciplines.     

浅议“行业工会”提法兼谈产业工会的改革

通过对产业工会、行业工会、企业工会等组织形式内涵的比较分析,指出工会组织体制改革应坚持产业原则,实施行业原则是不合适的.在此基础上指出当前产业工会建设中存在的四个问题,并提出了省级、区县产业工会和工会干部职业化等三个方面的改革思考.     

Does image editing improve the quality of latent prints? An analysis of image-editing techniques in one crime laboratory

Field research within latent print comparison has remained sparse in the context of an otherwise growing body of literature examining the discipline. Studies examining how ACE-V procedures are implemented within active crime laboratories are especially lacking in light of research suggesting significant variability in examiner practices despite standardized ACE-V procedures. To date, no studies have examined a potentially important aspect of the Analysis phase: digital image editing. We provide information on the prevalence and types of latent print image editing within one laboratory (i.e., Houston Forensic Science Center), examine the potential effect of image editing on objective print quality and clarity (i.e., LQMetrics scores), and explore potential examiner differences in editing effectiveness. Results indicate that most latent prints are edited in some manner, and that image editing improves the quality and clarity of print images as defined by an objective quality metric, although examiners varied in their ability to improve the clarity of print images. Findings suggest that formal guidance or documentation of standard editing procedures would likely improve the reliability of examiner conclusions early in the latent print comparison process.     

Bring the party back in: Institutional design for ‘smart election fraud’

Autocrats face a dilemma. Continue with fraudulent electoral practices and risk revolt, or reduce fraud and risk losing elections. One solution is to structure electoral governance such that it allows for independence and professionalism at the center, lending credibility to the electoral process, and partisan local-level administration, enabling fraud at the micro level. Partisan poll workers can help deliver the vote by the use of ‘smart fraud’ – fraud that minimizes the risk of being caught and is used only when needed. In Armenia, the ruling party's vote share, as a proportion of all registered voters, increases with 2.5 percentage points in polling stations where the chairperson was randomly assigned to the ruling party. Fraud forensics suggests that one of the mechanisms behind this was falsification of the results protocol during the count. I conjecture that fraud is only used in high-stakes elections and that election observers are unable to detect it.     

Missing the target and missing the point: ‘successful’ random assignment but misleading results

As the use of field experiments in criminology increases, discussions have focused on methods for achieving randomization, correcting for flawed randomization, increasing power and addressing treatment implementation problems in the interventions under study. This paper explores what may be a fairly common and basic challenge for field experimentation: the problem of attrition before random assignment in the targeted population—when an experiment may be well conducted, except that it ‘misses the target’ for a variety of possible reasons and produces experimental results that may be of questionable validity. To illustrate this basic, but seldom discussed, phenomenon, this paper draws on the examples of 13 field experiments by the author and colleagues as a body of case studies to assess the nature and magnitude of pre-assignment attrition and its possible implications for experimental findings.

Commentary on “Studying Eyewitness Investigations in the Field”: A Look Forward

Schacter et al. (2007, this issue) address the controversy surrounding an Illinois pilot project that attempted to compare sequential versus simultaneous police lineup formats. The statement by these experts will guide the design and execution of future field lineup experiments. This commentary discusses three aspects of field studies that pose challenges as lineup experiments are interpreted: the imprecise meaning of the dependent measure (eyewitness decisions), the limitations of single studies, and the necessity to devise public policy from incomplete knowledge. A combination of laboratory and field information provides the means to determine best practices in eyewitness identification procedures.     

If you ask,they will come (to register and vote): Field experiments with state election agencies on encouraging voter registration

We address the frequent critique that voter registration is a barrier to participation in the US. Institutional reforms to voter registration produce only small impacts on participation. We show the registration barrier can be reduced without changing laws or administrative processes using official communication seeking to change individual political behavior. In collaboration with state election agencies in two states, we conducted large-scale field experiments using low cost postcards aimed at increasing registration among eligible but unregistered citizens. The experiments find statistically and substantively significant effects on registration and turnout in subsequent elections. The research partnership with election officials is unusual and important for understanding electoral participation. Further, the population targeted for registration is broader than prior experiments on voter registration in the US. The results provide important insights about voter registration as a barrier to political participation, plus practical guidance for election officials to reduce this barrier.