Testing the homogeneous marginal utility of income assumption

We develop a test for the hypothesis that every agent from a population of heterogeneous consumers has the same marginal utility of income function. This homogeneous marginal utility of income (HMUI) assumption is often (implicitly) used in applied demand studies because it has nice aggregation properties and facilitates welfare analysis. If the HMUI assumption holds, we can also identify the common marginal utility of income function. We apply our results using a U.S. cross sectional dataset on food consumption.     

Predictors of Longitudinal Growth in Inhibitory Control in Early Childhood

In the current study, we examined latent growth in 731 young children's inhibitory control from the ages of two to four years, and whether demographic characteristics or parenting behaviors were related to initial levels and growth in inhibitory control. As part of an ongoing longitudinal evaluation of the family check‐up, children's inhibitory control was assessed yearly at the ages of two to four years. Inhibitory control was initially low and increased linearly to the age of four years. High levels of harsh parenting and male gender were associated with low initial status in inhibitory control. High levels of parental positive behavior support were associated with faster growth. Extreme family poverty and African‐American ethnicity were also associated with slower growth. The results highlight parenting as a target for early interventions in contexts of high socioeconomic risk.     

An improved randomized response model: estimation of mean

In this paper, we suggest a new randomized response model useful for collecting information on quantitative sensitive variables such as drug use and income. The resultant estimator has been found to be better than the usual additive randomized response model. An interesting feature of the proposed model is that it is free from the known parameters of the scrambling variable unlike the additive model due to Himmelfarb and Edgell [S. Himmelfarb and S.E. Edgell, Additive constant model: a randomized response technique for eliminating evasiveness to quantitative response questions, Psychol. Bull. 87(1980), 525–530]. Relative efficiency of the proposed model has also been studied with the corresponding competitors. At the end, an application of the proposed model has been discussed.     

Future low fertility prospects in Mongolia? An evaluation of the factors that support having a child

With 2.59 children per woman in 2008, Mongolia appears today as an exception in East Asia where fertility rates are far below the replacement level. Moreover, from its historical nadir of 1.95 children per women in 2005, fertility is on the rise. This paper first presents recent fertility development in Mongolia. Second, based on the experiences of European and East Asian countries, factors contributing to the development of low fertility are discussed in reference to the Mongolian context. Most of these factors are indeed found in Mongolia and could probably contribute to reducing fertility in the future. However, the country also presents cultural-family practices and recently-adopted fertility-family incentives which may support and stabilize fertility rates. These recent fertility-incentives factors and policies adopted by the Government of Mongolia are discussed in the final part from the perspective of equity, efficiency, and efficacy proposed by McDonald (2006b, “An assessment of policies that support having children from the perspectives of equity, efficiency and efficacy”, Vienna Yearbook of Population Research 2006, Special issue on ‘Postponement of childbearing on Europe’, 213–234). The aim is to determine if these measures are efficient to counterbalance and cancel out the depressing fertility effects.     

Die Digitalisierung von Coaching – Gedanken aus der Perspektive teilnehmender Beobachtung

This article focusses on the influence of digitalization on the performance of coaching services. Five relevant aspects are examined with regard to the opportunities and risks: (1) the coaching market, (2) the coaching process, (3) the communication between coach and client, (4) the coaching methods and tools and (5) the coach himself. The considerations make obvious that the future development of coaching depends not only on further technical innovations, but also on the answers of the professional community to the challenges of digitalization described above.     

The evolutionary anthropology of political leadership

Existing approaches within leadership studies often share a bias towards industrialized societies and lack broader cross-cultural and ethological reference. Meanwhile, cross-cultural and evolutionary approaches within anthropology are actively working to unify research on leadership and followership across the biological and social sciences. This review provides a novel and thorough view of political leadership as investigated by evolutionary anthropologists and highlights the benefits of incorporating findings from the evolutionary social sciences into leadership studies generally. We introduce the anthropological approach to leadership; describe evolutionary anthropology, its subdisciplines (including primatology, paleoanthropology, paleogenetics, human behavioral ecology, and gene-culture coevolution), and its complementary disciplines (particularly evolutionary psychology); review leadership and hierarchy in nonhumans, including our extinct hominid ancestors; review female leadership and sex-differences; and, primarily, discuss the relationships between evolution, ecology, and culture as they relate to the observed patterns of political leadership and followership across human societies. Through evolutionary anthropology's diverse toolkit, a deeper insight into the evolution and cross-cultural patterning of leadership is realized.     

The MySocialworker app system – a pilot interview study

An app system was developed in Denmark by caseworkers and clients from three municipalities, a software company, and a University College. The app system enabled young clients to track their wellbeing, positive behaviours, disturbances in their lives, and their experiences of interventions on smartphones. Statutory caseworkers could follow the change in their client’s situation and have an overview of all their clients on a web interface. This article describes the system and the results of a pilot qualitative interview study with six young clients. Clients used the app to reflect on their lives, to set specific personal goals and to remember their goals. The young clients also used the app to monitor changes in how they had been doing overall and as a reminder to keep up specific behaviours that were counterintuitive. The app became an integral part of the young clients’ relationship with their caseworker. The app was a lens that the client and the caseworker used to explore specific aspects of the client’s life. The app itself also became a joint venture, a shared point of interest. The app strengthened the young persons’ relationship with their caseworker, but there was also concern about whether they might become too close.     

Charismatic leadership: Eliciting and channeling follower emotions

Research on charismatic leadership has been criticized for the ambiguity of its central construct. Attempts to define and measure charisma have frequently treated it as a complex construct consisting of multiple components. However, little work has been done to develop a theoretical model that offers a parsimonious rationale explaining why certain leadership attributes are considered “charismatic” while others are not, or how these attributes combine to produce charismatic effects. Addressing these issues, we present a model that situates emotion as the primary variable in the charismatic process. We use recent research on the moral emotions to frame a theory of followership-relevant emotions (FREs) that describes how leaders use emotions such as compassion, admiration, and anger to compel their followers to act. We then discuss the Elicit-Channel (EC) model of charismatic leadership, positing that the charismatic relationship is a five-step, cyclical process. In the EC model, leaders elicit highly motivating emotions from their followers and then channel those emotions to produce action that, if successful, results in outcomes such as positive affect and trust. These outcomes then enable the leader to continue the cycle, eliciting emotion once more. We conclude by offering a research agenda, addressing potential methodological concerns, and discussing future directions.