Integrating Developing Countries into International Economics

Book reviewed in this article: Protectionism. By Jagdish Bhagwati Protection. Cooperation, Integration and Development. Edited by Ali M. El-Agraa The New Protectionist Threat to World Welfare. Edited by Dominick Salvatore Global Macroeconomics. Edited by Ralph C. Bryant and Richard Portes Macroeconomic Interactions Between North and South. Edited by David Currie and David Vines     

Density regression using repulsive distributions

Flexible regression is a traditional motivation for the development of non-parametric Bayesian models. A popular approach for this involves a joint model for responses and covariates, from which the desired result arises by conditioning on the covariates. Many such models involve the convolution of a continuous kernel with some discrete random probability measure defined as an infinite mixture of i.i.d. atoms. Following this strategy, we propose a flexible model that involves the concept of repulsion between atoms. We show that this results in a more parsimonious representation of the regression than the i.i.d. counterpart. The key aspect is that repulsion discourages mixture components that are near each other, thus favouring parsimony. We show that the conditional model retains the repulsive features, thus facilitating interpretation of the resulting flexible regression, and with little or no sacrifice of model fit compared to the infinite mixture case. We show the utility of the methodology by way of a small simulation study and an application to a well-known data set.     

Nonparametric Bayesian inference in applications

Nonparametric Bayesian (BNP) inference is concerned with inference for infinite dimensional parameters, including unknown distributions, families of distributions, random mean functions and more. Better computational resources and increased use of massive automated or semi-automated data collection makes BNP models more and more common. We briefly review some of the main classes of models, with an emphasis on how they arise from applied research questions, and focus in more depth only on BNP models for spatial inference as a good example of a class of inference problems where BNP models can successfully address limitations of parametric inference.     

Ethnic enclaves transcending space Chinese international students’ social networks in a European University town

ABSTRACT

Each ethnic enclave has its own idiosyncrasies, leading to disagreements as to the functions they serve for the migrants inhabiting them. However, three main functions may be identified across scholarly literature: shielding, economic and cultural. This article explores to what extent the spatial organization of the ethnic enclave is necessary for fulfilling these functions by taking the case of the Chinese international students in a Norwegian town. These students comprise a relatively cohesive group, and their conational social networks serve most of the same purposes of ethnic enclaves without the need for a separate neighbourhood. While most of their material needs are met, the students still express a lack of belonging, a need for a place that is ‘for us’, and they present an example of how an ethnic space is constructed without the need for a traditional ‘Chinatown’.     

NGOs’ Resource Capacity Antecedents for Partnerships

Nonprofit organizations strive for continuous improvement in their programs’ effectiveness and sustainability, service efficiency, and accountability. Typically, managers face the need to attain these objectives despite limited or declining resources. For that reason, collaboration with other organizations has become an increasingly favored tactical strategy. However, even with the extensive literature on collaboration, there is a lack of empirical testing of elements or characteristics essential to collaboration. Using survey data from environmental organizations, we find that organizations that have sufficient human resource capacity, more technological resources, and employ females at the leadership level would more likely seek collaboration than would other organizations. Organizations that generate higher internal revenues are less likely to seek collaboration.     

Traditional Gift Giving Among Pacific Families in New Zealand

The Pacific population in New Zealand is socially disadvantaged and over-represented in adverse social and health statistics. A cohort of 1,376 mothers of Pacific infants were asked about traditional gift commitments and the effect that these commitments had on the financial situation in their household. Sixty-two percent reported that they and/or their partner usually gave to their family or church, with 66.5% of this group giving to family in New Zealand, 58% to family in the Pacific Islands, and 75.9% to their church. Fifty-nine percent of these mothers reported that this gift commitment made their household financial situation more difficult. Factors significantly associated with gift giving are discussed, together with implications of these findings for Pacific families living New Zealand.