Catching the Bad Guy: Morphing Composite Faces Helps

Composite faces built by eyewitnesses commonly are poor likenesses of the target face. When there are multiple witnesses, however, an opportunity exists to morph the composites. Morphs were rated as more similar to the target face than were the mean ratings of the individual composites. However, as hypothesized, the morph also came to resemble non-target faces more than the individual composites did (a prototype effect). This prototype effect was so strong that the morphs resembled non-targets more than the individual composites resembled the targets. In addition, morphing composites produced an attractiveness bias, which made the morphing of composites less effective for less attractive targets. Even when the prototype effect and the attractiveness bias were controlled for, however, a true morph-superiority effect continued to exist. The author won the Psi Chi/APS Albert Bandura Graduate Research Award in 2005--2006 for this study.     

The null hypothesis is not called that for nothing: statistical tests in randomized trials

This article aims to update readers on different ways to arrange one’s thinking about conventional null hypotheses in randomized trials. It covers basic criticism of conventional hypotheses and, beyond this, covers relevant developments in methodological, organizational, and science policy arenas. This article includes coverage of new ways to frame null hypotheses, new technical resources, standards for registering trials and reporting on them, cumulating results, common mistakes, and post-trial analysis of null results. The paper includes ideas for research and development on each topic.

Unilateral CDM—can developing countries finance generation of greenhouse gas emission credits on their own?

The Clean Development Mechanism (CDM) was originally seen as an instrument with a bi- or multilateral character where an entity or fund from an industrialised country invests in a project in a developing country. The sluggish implementation of incentives for industrialised country companies to embark on CDM projects and low carbon prices led to a preference for just buying Certified Emission Reductions (CERs) instead of investing in projects. Thus a third option has gained prominence—the unilateral option where the project development is planned and financed within the developing country. We propose that a project should be called “pure unilateral” if it involves no foreign direct investment (FDI), only has the approval of the Designated National Authority (DNA) of the host country and sells its CERs after certification directly to an industrialised country. Unilateral projects can become attractive if the host country risk premium for foreign investors is high despite a high human, institutional and infrastructural capacity and domestic capital availability. Moreover, transaction costs can be reduced compared to foreign investments that have to overcome bureaucratic hurdles. On the other hand, technology transfer is likely to be lower, capacity building has to be undertaken by the host country and all risks have to be carried by host country entities. The potential to carry out unilateral CDM projects strongly varies among host countries. Whereas several countries from Asia and Latin America can design and implement projects autonomously, most of the Sub-Saharan countries rely on foreign support. International donors of capacity building grants should increasingly address those countries that are not presently focused on by foreign investors and support them in the design of local projects.

The maquiladora electronics industry on Mexico’s northern border and the environment

The electronic sector, in particular, the computing industry, has become an increasing concern because of the environmental impact of its products throughout their life cycle. The United States, Europe and Japan as the greatest consumers of electronic goods have given special attention to this issue. The fast computer obsolescence and its difficult confinement, because of the hazardous substances contained, have required a special effort of technical innovation. Nevertheless, this effort seems to respond mainly to the standards required by the countries in which these goods are produced, consumed and confined, which are radically different in developed and developing countries. Though an important part of the production process (assembling) is done in developing countries, little attention has been paid to the environmental quality at this production stage. This study examines the environmental problems and strategy of the electronic assembly industry in the three northern border cities of Mexico. Almost half of 200 electronic maquiladora enterprises surveyed had not undertaken any active environmental policy and there was a limited environmental standards enforcement. Evidence was found that the firms that had operated for a longer period of time had better chances of taking better care of the environment. Environmental firm policies became weaker as one descended from the head office to the subsidiaries and then to their suppliers. It is also found that some transnational corporations operate with double standards in Mexico and thus strong national policies on environmental standards in Mexico are required to change this practice.

The legal regime for application of the precautionary principle in India: future directions for the GM regulatory regime

The precautionary principle is one of the most contentious principles in contemporary international legal developments. The very fact that it is a principle of international environmental law has been questioned by many legal scholars. However, this does not take away the fact that the precautionary principle continues to be applied widely across sectors both internationally and nationally. The nature and scope of its application has varied widely according to the context and sector within which it has been applied. The central issue which this article seeks to address is the regulatory and the policy making space that is available to the Government of India in the context of the obligations as undertaken under the Cartagena Protocol and under various other international treaties. The regulatory space would also be affected by the domestic legal developments across sectors in which the principle has been applied. India’s recent decision on the large-scale commercialisation of Bt-Cotton has already created much debate regarding its appropriateness given the realities of Indian farm practices. More specifically, it has also led to a rethinking of the role and application of the precautionary principle in addressing these realities. Considering that the Indian policy on biotechnology is currently being drafted, it is important to look into the scope of applying the precautionary principle in taking any decision on genetically modified organisms (GMO) in terms of their distribution of risks, incorporating the social and equity impacts of such decisions.

Make or buy on the Russian railway? Coase,Williamson, and Tsar Nicholas II

There is a growing consensus among economists that the most procompetitive strategy for restructuring public utility enterprises includes complete vertical separation of the network or grid portion of a sector from other parts of the sector where competition is to be created. Although exceptions to this rule are readily granted, it is generally considered that any alternative strategy may pay a high cost in terms of discriminatory access to the grid by non-integrated entrants into the new competitive sector. This consensus is somewhat surprising in light of the simultaneous growth of transactions cost economics, with its emphasis on the benefits of close vertical relationships—including vertical integration—in the face of complexity, unforeseeable contingencies, and problems with contract law enforcement. These issues are considered in the context of a Russian railways restructuring plan which may, or may not, involve complete vertical separation.

Firm performance and privatization in Ukraine

Investigating the effects of privatization in transition countries is the focus of a large body of current research. Generally, privatization stimulates private sector development, attracts foreign direct investment, fosters competition and contributes to the formation of stock markets. In addition, privatization may improve individual enterprises’ performance. This paper investigates the impact of privatization on Ukrainian firms’ productivity. The empirical research is based on a sample of 466 Ukrainian joint-stock enterprises for the period of 1997–1999. Estimation results indicate that privatization positively influences labor productivity, sales and profitability, but also that these effects diminish over time.

Mandated Community Service in High School and Subsequent Civic Engagement: The Case of the “Double Cohort” in Ontario,Canada

In 1999, the Ontario provincial government introduced into its high school curriculum a requirement that students complete 40 h of volunteer community service before graduation. At the same time, the high school curriculum was shortened from five years to four. Consequently, the 2003 graduating class of Ontario high school students contained two cohorts, the first of the 4-year cohorts that was compelled to complete a mandated community service requirement, and the last of the 5-year cohorts that was not. Using a quasi-experimental design, we surveyed 1768 first-year university students in terms of their perceptions and attitudes about the nature and amount of previous volunteering, attitudes towards community service, current service involvement and other measures of civic and political engagement. Comparisons of the two cohorts indicate that, while there were discernible differences between the two cohorts in terms of their past record of community service, there were no differences in current attitudes and civic engagement that might plausibly be attributed to participation in the mandatory service program. Results are discussed with relation to the current debate concerning the impact of mandatory volunteering policies on intrinsic motivation to volunteer.

Gender Differences in the Educational Expectations of Urban,Low-Income African American Youth: The Role of Parents and the School

This study examined how youths’ gender is related to the educational expectations of urban, low-income African American youth, their parents, and their teachers. As predicted, African American boys (ages 9–16) reported lower expectations for future educational attainment than did their female counterparts. Parents and teachers also reported lower expectations for African American boys (ages 6–16) than for girls. These findings held even when controlling for academic achievement. Contrary to predictions, the magnitude of the difference in expectations for males vs. females did not increase as a function of youths’ age. In keeping with our hypotheses, parental expectations fully mediated the relation between youths’ gender and youths’ expectations. Finally, certain school-based factors (i.e., positive teacher expectations and positive youth perceptions of the school environment) appeared to protect youths’ expectations from the deleterious impact of low parental expectations.

Violent Victimization,Aggression, and Parent-Adolescent Relations: Quality Parenting as a Buffer for Violently Victimized Youth

Prospective associations between violent victimization, the quality of the parent-adolescent relationship, and the subsequent onset of violent aggression were examined. Using the National Longitudinal Study of Adolescent Health (Add Health), participants were divided into violent and non-violent cohorts based on whether they had committed an act of violence prior to Wave 1. Results showed that violent victimization at Wave 1 predicted the onset of violent aggression at Wave 2 for adolescents who were non-violent at baseline. Earlier violent victimization, however, had no effect on aggression trajectories for baseline violent adolescents. Parent-adolescent relations functioned as a protective buffer, such that violently victimized adolescents who reported high quality relationships with parents were less likely to be involved in violent aggression at Wave 2. Subsequent gender interaction analyses revealed that while the buffering effect was evident for males, parent-adolescent relations did not protect females from the onset of aggressive behaviors. Findings are evaluated in light of social learning and cycle of violence theories that highlight the role of violent victimization among adolescents.