The Impact of New Immigration in native Wages: A Cross-occupation Analysis of a Small Open Economy

This paper examines how immigration affects native wages by exploiting an unexpected episode of immigrant influx. The episode happened in Hong Kong, when its government unexpectedly relaxed the restriction on immigration from mainland China in 1993, resulting in a seven-fold increase in the net inflow of Chinese immigrants between 1992 and 1993. We use variation in the employment share of immigrants across occupations for identification. To tackle endogeneity between wages and immigrant inflows across occupations, we use Welch’s (1999) congruence indices, which capture the degree of substitutability between workers from different skill groups, to construct instruments for the prevalence of Chinese immigrants in an occupation. Using micro-level data, our two-stage-least-squares estimates show that a 1 percentage point increase in the ratio of new Chinese immigrants to natives decreases native monthly real wages in the same occupation by 2.8-3.6 percents (controlling for immigrant shocks in similar occupations). Within an occupation, female and more skilled native workers experience more adverse wage impact, reflecting a high switching cost associated with occupation-specific human capital.Immigration, Labor Market Outcomes, Occupation-specific Human Capital

Context-Awareness Enhances 5G Multi-Access Edge Computing Reliability

The fifth generation (5G) mobile telecommunication network is expected to support Multi- Access Edge Computing (MEC), which intends to distribute computation tasks and services from the central cloud to the edge clouds. Towards ultra-responsive, ultra-reliable and ultra-low-latency MEC services, the current mobile network security architecture should enable a more decentralized approach for authentication and authorization processes. This paper proposes a novel decentralized authentication architecture that supports flexible and low-cost local authentication with the awareness of context information of network elements such as user equipment and virtual network functions. Based on a Markov model for backhaul link quality, as well as a random walk mobility model with mixed mobility classes and traffic scenarios, numerical simulations have demonstrated that the proposed approach is able to achieve a flexible balance between the network operating cost and the MEC reliability.Comment: Accepted by IEEE Access on Feb. 02, 201

Lattice model of gas condensation within nanopores

We explore the thermodynamic behavior of gases adsorbed within a nanopore. The theoretical description employs a simple lattice gas model, with two species of site, expected to describe various regimes of adsorption and condensation behavior. The model includes four hypothetical phases: a cylindrical shell phase (S), in which the sites close to the cylindrical wall are occupied, an axial phase (A), in which sites along the cylinder's axis are occupied, a full phase (F), in which all sites are occupied, and an empty phase (E). We obtain exact results at T=0 for the phase behavior, which is a function of the interactions present in any specific problem. We obtain the corresponding results at finite T from mean field theory. Finally, we examine the model's predicted phase behavior of some real gases adsorbed in nanopores

The Housing Boom and the Rise of Localism in Hong Kong: Evidence from the Legislative Council Election in 2016

Localist parties have become an emerging force in Hong Kong’s political landscape. What has caused the rise of localism in the city? Extant studies focus on cultural and social factors. In this article, we propose a political economy explanation: global and regional economic factors have caused a housing boom in Hong Kong since the mid-2000s and produced impactful redistributive consequences. While homeowners benefit tremendously from the hike in asset prices, non-homeowners stand to lose. Their divergent economic interests then translate into political preferences; homeowners support political parties that favour the status quo, while non-homeowners tend to support those that challenge it. Using a newly available public opinion survey, we find preliminary evidence in support of our argument. In particular, homeowners are less likely to identify with localist parties and tend to vote for pro-establishment ones. High-income earners, however, are more likely to vote for localist parties

Boom immobilier et essor du localisme à Hong Kong

Les partis localistes deviennent une force émergente dans le paysage politique hongkongais. Quelles sont les causes de l’essor du localisme au sein du territoire ? Les études existantes s’attachent à en analyser les facteurs culturels et sociaux. Dans cet article, nous proposons une explication politico-économique : des facteurs économiques régionaux et internationaux sont responsables du boom immobilier à Hong Kong depuis le milieu des années 2000 avec d’importantes conséquences sur le plan de la redistribution des richesses. Alors que les propriétaires de logement bénéficient largement de l’envolée des prix de l’immobilier, les non-propriétaires ont eux beaucoup perdu. Leurs intérêts économiques divergents se traduisent alors en orientations politiques distinctes ; les propriétaires soutiennent les partis qui défendent le statu quo, tandis que les non-propriétaires s’orientent vers ceux qui le remettent en question. Grâce aux données récemment disponibles d’un sondage d’opinion, nous apportons les premiers résultats pour soutenir notre thèse. Plus précisément, les propriétaires de logement sont moins susceptibles de s’identifier aux partis localistes et tendent à voter pour les partis pro-gouvernement. Cependant, les personnes à haut revenu tendent plutôt à voter pour les partis localistes.Localist parties have become an emerging force in Hong Kong’s political landscape. What has caused the rise of localism in the city? Extant studies focus on cultural and social factors. In this article, we propose a political economy explanation: global and regional economic factors have caused a housing boom in Hong Kong since the mid-2000s and produced impactful redistributive consequences. While homeowners benefit tremendously from the hike in asset prices, non-homeowners stand to lose. Their divergent economic interests then translate into political preferences; homeowners support political parties that favour the status quo, while non-homeowners tend to support those that challenge it. Using a newly available public opinion survey, we find preliminary evidence in support of our argument. In particular, homeowners are less likely to identify with localist parties and tend to vote for pro-establishment ones. High-income earners, however, are more likely to vote for localist parties

Four Levels of Hierarchical Organization, Including Noncovalent Chainmail, Brace the Mature Tumor Herpesvirus Capsid against Pressurization

SummaryLike many double-stranded DNA viruses, tumor gammaherpesviruses Epstein-Barr virus and Kaposi’s sarcoma-associated herpesvirus withstand high internal pressure. Bacteriophage HK97 uses covalent chainmail for this purpose, but how this is achieved noncovalently in the much larger gammaherpesvirus capsid is unknown. Our cryoelectron microscopy structure of a gammaherpesvirus capsid reveals a hierarchy of four levels of organization: (1) Within a hexon capsomer, each monomer of the major capsid protein (MCP), 1,378 amino acids and six domains, interacts with its neighboring MCPs at four sites. (2) Neighboring capsomers are linked in pairs by MCP dimerization domains and in groups of three by heterotrimeric triplex proteins. (3) Small (∼280 amino acids) HK97-like domains in MCP monomers alternate with triplex heterotrimers to form a belt that encircles each capsomer. (4) One hundred sixty-two belts concatenate to form noncovalent chainmail. The triplex heterotrimer orchestrates all four levels and likely drives maturation to an angular capsid that can withstand pressurization

Effects of a cognitive behavioral self-help program and a computerized structured writing intervention on depressed mood for HIV-infected people:A pilot randomized controlled trial

Objective: The aim of the present study was to examine whether low-resource, cost-effective intervention programs can be effective in improving depressed mood in people with HIV. The efficacy of a cognitive-behavioral self-help program (CBS) and a computerized structured writing intervention (SWI) were tested in a pilot randomized controlled trial. Methods: Participants were members of a patient organization. They completed a pretest and posttest. The questionnaire included the HADS. Participants were randomly allocated to CBS (n=24), SWI (n=25) or a waiting list condition (WLC, n=24). To evaluate changes in the continuous outcome measure, a 3 × 2 (group × time) repeated measures ANCOVA was performed. Also, an ANCOVA was performed using change scores. Results: Respondents who followed the CBS improved significantly compared to the WLC. However, for people in the SWI condition no significant improvement on depression was found. Conclusion: This pilot study suggests that a low-resource, cost-effective CBS program seems to be effective in reducing depressed mood in people living with HIV. Practice implications: Because self-help programs can be delivered through regular mail or the internet, a high number of people could be reached while overcoming geographical and social barriers to treatment. © 2009 Elsevier Ireland Ltd