An Experimental Investigation of Electoral Delegation and the Provision of Public Goods

How effectively do democratic institutions provide public goods? Despite the incentives an elected leader has to free ride or impose majority tyranny, our experiment demonstrates that electoral delegation results in full provision of the public good. Analysis of the experimental data suggests that the result is primarily due to electoral selection: groups elect prosocial leaders and replace those who do not implement full contribution outcomes. However, we also observe outcomes in which a minimum winning coalition exploits the contributions of the remaining players. A second experiment demonstrates that when electoral delegation must be endogenously implemented, individuals voluntarily cede authority to an elected agent only when preplay communication is permitted. Our combined results demonstrate that democratic delegation helps groups overcome the free‐rider problem and generally leads to outcomes that are often both efficient and equitable.     

LSD and 9,10-dihydro-LSD Analyses in Street Drug Blotter Samples via Easy Ambient Sonic-Spray Ionization MassSpectrometry (EASI-MS)

Normally, the identification of the LSD drug is performed by forensic laboratories, using the Ehrlich spot test. However, this is a nonspecific analysis. Additionally, the Brazilian Federal Police has identified the presence of a new compound in seized blotters: 9,10-dihydro-LSD, an uncontrolled substance. In this work, easy ambient sonic-spray ionization mass spectrometry in the positive ion mode, EASI(+)-MS, was used to characterize LSD and 9,10-dihydro-LSD compositions directly from the surface of blotters. The presence of LSD in the seized blotter samples were also confirmed via high-performance liquid chromatography with ultraviolet detector. In a set of 41 blotters analyzed by EASI(+)-MS, 28 showed positive results for LSD, seven for 9,10-dihydro-LSD, and another six samples showed negative results for both LSD and 9,10-dihydro-LSD. The combination of thin layer chromatography with EASI-MS also demonstrated to be a relatively simple and powerful screening tool for forensic analysis of street drugs.     

Determination of stature from skeletal and skull measurements by CT scan evaluation

The aim of this article is to find a correlation between height and femur/skull measurements through Computed Tomography (CT) scans and derive regression equations for total skeletal height estimation in the Caucasian population. We selected 200 Caucasian patients from March 2010 to July 2011 who had to perform a CT scan for cancer restaging. The mean age is 64.5 years. Both sexes are represented by the same number of persons. Patients have executed a total body CT scan with contrast; once scan accomplished, we measured height through a digital scales. We analyzed CT scans of each patient, obtaining multiplanar reconstruction in sagittal and coronal planes with 1mm of thickness, and we measured 10 diameters of skull and femur. Then we performed a single and a multiple regression analysis considering the three diameters that better correlated with height. The skeletal diameters with the highest correlation coefficients with stature were femur lengths, length of cranial base (Ba-N), and distance from the posterior extremity of the cranial base to the inferior point of the nasal bone (Ba-NB). Although both femur and skull are skeletal segments used for stature estimation, in our sample femur gave stronger correlation with height than skull. h=35.7+1.48·BaN+2.32·BaNB+2.53·FEM and h=3.06·FEM+72.6 are the formulae that provided the most accurate stature assessment using multiple and single regression analysis respectively.     

The recovery of latent text from thermal paper using a simple iodine treatment procedure

Faded, or actively removed text on thermally printed paper samples may be enhanced and retrieved through the use of a simple iodine fuming procedure. The recovery of printed documentation evidence in this fashion is neither affected by prior fingerprint enhancement techniques (such as ninhydrin or DFO), nor by sample age. This method allows, for the first time, evidence to be obtained from completely faded thermal paper samples (receipts, for example) as well as allowing deliberately removed printed text (a consequence of solvent washing pre-treatment in latent fingerprint enhancement procedures) to be recovered.     

The Impact of Federal Preemption of State Antipredatory Lending Laws on the Foreclosure Crisis

State antipredatory lending laws (APLs) are designed to protect borrowers against predatory lending that can increase the risk of default and deplete the home equity held by borrowers. Federal regulators instituted preemption that limited the scope and reach of state antipredatory lending regulations for certain lenders. Based on the variation in state laws and the variation in the regulatory environment among lenders, this paper identifies the effects of federal preemption of state APLs on the quality of mortgages originated by preempted lenders. The results provide evidence of a relatively higher increase in default risk among loans exempted from strong state antipredatory laws. These results are most robust among refinance mortgages with adjustable interest rates—a large and highly dynamic market in the period of analysis. The findings provide initial evidence that preemption of state mortgage lending regulations may result in an increase in mortgage default risk, thus limiting consumer protection in the residential mortgage market.     

Calculating likelihood ratios for a mixed DNA profile when a contribution from a genetic relative of a suspect is proposed

This technical note describes a practical method for evaluating evidence in the case of a two person conditioned DNA mixture where the defence proposition is that the unknown contributor is genetically related to the suspect. A conditioned mixture is one where the presence of DNA from one of two individuals is accepted by both prosecution and defence. A typical example would be a vaginal swab in an alleged rape case, where the presence of the complainant's DNA would be expected and samples have been taken from the complainant and a suspect. Much has been written about the interpretation of such mixtures and the calculation of the conditional genotype probabilities that must be carried out. In general, such treatments assume that the unknown contributor, under the defence proposition, is unrelated to the known individuals. In this paper, we consider the case where the defence proposition is that the unknown contributor is genetically related to the suspect. We describe a method, incorporating a flow chart and reference tables that facilitate manual calculations of the likelihood ratio for several postulated genetic relationships.     

The Association between Maternal Exposure to Intimate Partner Violence and Emotional and Behavioral Problems in Spanish Children and Adolescents

This correlational cross-sectional study was designed to investigate whether the intimate partner violence (IPV) suffered by mothers (physical and psychological maltreatment), the neglect suffered by children, and the maltreatment (physical and psychological) directly suffered by children are statistically associated with an increase in the probability of the child’s suffering psychopathological problems. The sample consisted of 189 Spanish children aged 6 to 17 and their mothers, recruited from Centers of Specialized Assistance for Women Victims of IPV. The results of a canonical correlation analysis showed that the most significant problems suffered by the children were both externalizing and internalizing ones. In girls, the maltreatment suffered by their mothers was directly related to a larger frequency of somatic complaints than in boys. In addition, physical maltreatment to the mother and emotional maltreatment suffered by the child exhibited a statistically significant relationship with aggressive behaviour, thought problems, rule-breaking behaviour, attention problems, and withdrawn-depressed.     

Risk Factors of Violence against Women in Peru

Based on the results of previous investigations, this study seeks for individual, relationship and community characteristics among women living with their partner associated with intimate partner violence [IPV] victimization. The sample of 19,131 women was taken from the 2016 Peru Demographic and Health Survey. A binomial logistic regression model showed among the most significant risk factors: heavy drinking by the woman’s partner (OR = 8.655, p < .001), having witnessed parental domestic violence (OR = 1.496, p < .001) and having experienced physical punishment during childhood (OR = 1.306, p < .001). Other factors related to higher odds of IPV at the individual level include employment and low educational attainment. Relationship risk factors comprise, 25 to 29 years of relationship duration, living in cohabitation, previous unions and low socioeconomic status. At the community level, living in an urban residence increases the likelihood of abuse. These findings highlight the need to include these factors, in the IPV prevention strategies.     

Toward Normalization of Defamation Law: The U.K. Defamation Act of 2013 and the U.S. SPEECH Act of 2010 as Responses to the Issue of Libel Tourism

In the wake of several high-profile libel actions brought by U.S. celebrities and foreign businessmen in London because of more favorable defamation laws there, London was dubbed the “libel tourism capital of the world.” The U.S. response in 2010 was the passage of the SPEECH Act, preventing courts from enforcing libel judgments from foreign jurisdictions not providing the same level of protection as the United States. Similarly, in 2013 the United Kingdom responded to international and national criticism by passing the Defamation Act to address the loophole in its system that caused the abuse. Both acts have been criticized, the first for its aggressiveness, and the second for its conservative nature. This article examines the development of the law of defamation in the two jurisdictions and analyzes the content of both statutes, along with their criticisms, proposing international cooperation to address the issue of libel tourism.