THE DISTRIBUTION SECTOR AND THE DEVELOPMENT PROCESS: ARE THERE PATTERNS? YES

Using an increasing returns specification for distribution, an inverted U pattern between the share of distribution in gross domestic product and the level of development is shown to arise. A cross-section time-series data set is constructed and merged with one used to analyze the service sector. In contrast to the rising pattern found for services, an average time-series relation that exhibits an inverted U pattern is established. The empirical results are robust, for example, to choice of functional form and country and time period coverage. A similar pattern is found in the average cross-section (country) relation between distribution and development.     

Formación militar y dictadura: Un enfoque psicológico

Resumen

Pocos estudios se han centrado en analizar la importancia que la situación laboral de las personas tiene en el proceso de percepción de impresiones en el contexto social de escasez de empleo. Este estudio aborda el fenómeno de la formación de impresiones a partir del experimento de Asch utilizando como rasgos centrales “empleada”, “desempleada” y “jubilada” y los rasgos respuesta del experimento original. La muestra se compuso de 239 estudiantes universitarios sin conocimientos previos del experimento de Ach. Se utilizó un diseño experimental unifactorial (situación laboral) multicondicional (rasgos respuesta) de grupos distintos de sujetos. Mediante pruebas chi cuadrado, los resultados obtenidos mostraron que la persona “empleada” fue descrita como más importante y perseverante que la “desempleada”, pero más egoísta que la “jubilada”. La persona “desempleada” fue considerada como la más triste, y junto con la persona “jubilada” más sociables en comparación con la “empleada”. Las personas poderosas—entendiendo el trabajo como fuente de poder y estatus—fueron percibidas como competentes pero poco sociables, dentro del marco del Modelo sobre el Contenido Mixto de los Estereotipos de Fiske et al.     

Early Childhood Development Plus Violence Prevention in Low‐ and Middle‐Income Countries: A Qualitative Study

Violence exposure can negatively impact early childhood development (ECD), yet limited research exists in low‐ and middle‐income countries (LMICs). This study aimed to determine what effective integration of ECD plus violence prevention (ECD+VP) can look like in LMICs. Seventeen key informants were selected using purposive sampling, representing U.N. agencies, donors, implementers and research organisations. Using open coding of semi‐structured interviews, the authors identify five priority areas for promoting an integrated ECD+VP agenda: (i) parenting and parent child relationships, (ii) family systems, (iii) development in an ecological context, (iv) system strengthening and integration, and (v) building and translating evidence.     

Attention to Maternal Multimodal Naming by 6‐ to 8‐Month‐Old Infants and Learning of Word–Object Relations

We examined whether mothers' use of temporal synchrony between spoken words and moving objects, and infants' attention to object naming, predict infants' learning of word–object relations. Following 5 min of free play, 24 mothers taught their 6‐ to 8‐month‐olds the names of 2 toy objects, Gow and Chi, during a 3‐min play episode. Infants were then tested for their word mapping. The videotaped episodes were coded for mothers' object naming and infants' attention to different naming types. Results indicated that mothers' use of temporal synchrony and infants' attention during play covaried with infants' word‐mapping ability. Specifically, infants who switched eye gaze from mother to object most frequently during naming learned the word–object relations. The findings suggest that maternal naming and infants' word‐mapping abilities are bidirectionally related. Variability in infants' attention to maternal multimodal naming explains the variability in early lexical‐mapping development.     

A weakly informative prior for Bayesian dynamic model selection with applications in fMRI

In recent years, Bayesian statistics methods in neuroscience have been showing important advances. In particular, detection of brain signals for studying the complexity of the brain is an active area of research. Functional magnetic resonance imagining (fMRI) is an important tool to determine which parts of the brain are activated by different types of physical behavior. According to recent results, there is evidence that the values of the connectivity brain signal parameters are close to zero and due to the nature of time series fMRI data with high-frequency behavior, Bayesian dynamic models for identifying sparsity are indeed far-reaching. We propose a multivariate Bayesian dynamic approach for model selection and shrinkage estimation of the connectivity parameters. We describe the coupling or lead-lag between any pair of regions by using mixture priors for the connectivity parameters and propose a new weakly informative default prior for the state variances. This framework produces one-step-ahead proper posterior predictive results and induces shrinkage and robustness suitable for fMRI data in the presence of sparsity. To explore the performance of the proposed methodology, we present simulation studies and an application to functional magnetic resonance imaging data.     

Is Executive Cognitive Function Associated with Youth Gambling?

Our objectives for this report were to identify trajectories of youth gambling behavior, and to examine their relation to executive cognitive function (ECF) and associated problem behaviors. Philadelphia school children, enrolled at ages 10–12 years (n = 387; 49% male), completed three annual assessments of risk behaviors, ECF, impulsivity, problem behaviors and demographics. Across ages 10–15 years, using methods from Nagin et al., two groups were identified: Early Gamblers (n = 111) initiated early and continued in later assessments, and Later Gamblers (n = 276) initiated at later ages and gambled less. Betting money on cards and sports were the most frequently reported gambling behaviors. Using gambling group as outcome, final backward selection logistic regression model showed Early Gamblers are more likely male (P = 0.001), report more active coping (P = 0.042), impulsive behaviors (P ≤ 0.008), and have friends who gamble (P = 0.001). Groups were similar in ECF, parental monitoring, marital status, SES, and race. Early Gamblers had higher incidence of problem behaviors and drug use (all P ≤ 0.006). Two gambling groups were identified in early adolescence with Early Gamblers showing higher levels of impulsivity and comorbid problems but similar levels of ECF compared to Late Gamblers. As more gambling groups are identified through later adolescence, ECF may emerge as a relevant precursor of problem gambling at this later time.     

Promoting positive development among refugee adolescents

Of the estimated 35.3 million refugees around the world (UNHCR, Figures at a Glance, 2022), approximately 50% are children under the age of 18. Refugee adolescents represent a unique group as they navigate developmental tasks in an unstable and often threatening environment or in resettlement contexts in which they often face marginalization. In addition to physiological, social, and psychological changes that mark adolescence, refugee youth often face traumatic experiences, acculturative stress, discrimination, and a lack of basic resources. In this consensus statement, we examine research on refugee adolescents' developmental tasks, acculturative tasks, and psychological adjustment using Suárez-Orozco and colleague's integrative risk and resilience model for immigrant-origin children and youth proposed by Suárez-Orozco et al. Finally, we discuss recommendations—moving from proximal to more distal contexts.