A measure of slope-rotatability for second order response surface experimental designs

In the design of experiments for estimating the slope of a response surface, slope-rotatability is a desirable property. In this paper, a measure is introduced that enables us to assess the degree of slope-rotatability for a given response surface design. The measure takes the value zero if and only if the design is slope-rotatable, and becomes larger as the design deviates from a slope-rotatable design. Examples of applying this measure to some response surface designs are also given.     

Joint impact of multiple observations on a subset of variables in multiple linear regression

In multiple linear regression analysis, each observation affects the fitted regression equation differently and has varying influences on the regression coefficients of the different variables. Chatterjee & Hadi (1988) have proposed some measures such as DSSE_ij (Impact on Residual Sum of Squares of simultaneously omitting the ith observation and the jth variable), F_j (Partial F-test for the jth variable) and F_j(i) (Partial F-test for the jth variable omitting the ith observation) to show the joint impact and the interrelationship that exists among a variable and an observation. In this paper we have proposed more extended form of those measures DSSE_IJ, F_J and F_J(I) to deal with the interrelationships that exist among the multiple observations and a subset of variables by monitoring the effects of the simultaneous omission of multiple variables and multiple observations.     

Let's Call it Quits: Break‐Even Effects in the Decision to Stop Taking Risks

“Chasing” behavior, whereby individuals, driven by a desire to break even, continue a risky activity (RA) despite incurring large losses, is a commonly observed phenomenon. We examine whether the desire to break even plays a wider role in decisions to stop engaging in financially motivated RA in a naturalistic setting. We test hypotheses, motivated by this research question, using a large data set: 707,152 transactions of 5,379 individual financial market spread traders between September 2004 and April 2013. The results indicate strong effects of changes in wealth around the break‐even point on the decision to cease an RA. An important mediating factor was the individual's historical long‐term performance. Those with a more profitable trading history were less affected by a fall in cash balance below the break‐even point compared to those who had been less profitable. We observe that break‐even points play an important role in the decision of nonpathological risk takers to stop RAs. It is possible, therefore, that these nonpathological cognitive processes, when occurring in extrema, may result in pathological gambling behavior such as “chasing.” Our data set focuses on RAs in financial markets and, consequently, we discuss the implications for institutions and regulators in the effective management of risk taking in markets. We also suggest that there may be a need to consider carefully the nature and role of “break‐even points” associated with a broader range of nonfinancially‐focused risk‐taking activities, such as smoking and substance abuse.     

The UN Global Compact for Safe,Orderly and Regular Migration: Its Impact on Asia

This article focuses on the Global Compact for Safe, Orderly and Regular Migration (GCM), a landmark international document that builds on the momentum of a decade of initiatives at the international level on migration governance, and its impact on Asia from the perspective of South Asia, Southeast Asia, China, and South Korea. While none of these countries voted against the adoption of the GCM, there are significant differences in how individual countries approached the commitments made in the GCM. These perspectives were articulated in a webinar hosted by Metropolis Asia on 20 June 2018 and in governmental statements made at the UN international conference when the GCM was adopted. This article also discusses the challenges confronting the implementation of the GCM. While the Compact resulted from inclusive and intensive negotiations and many compromises, the road towards realizing its goals will be at least as challenging as the road that led to its adoption. In spite of these challenges, the GCM is a ground‐breaking representation of the first multilateral framework for migration governance. Its success rests upon the recognition that addressing the challenges and maximizing the benefits of migration require true international cooperation, renewed commitment and meaningful action on the commitments agreed to.     

Legitimating the Philippines as a language learning space: Transnational Korean youth's experiences and evaluations

This paper examines how a peripheral English‐speaking country is constructed as a legitimate language learning space in the global English language teaching (ELT) industry by investigating South Koreans’ recent engagement in Philippine English education. It focuses on a short‐term English study abroad program, in which the Philippines serves as a transit place prior to students’ moving to a Western English‐speaking country. Drawing data from ethnographic research on South Korean youth studying English abroad, the article analyzes why Korean students seek Philippine English education in spite of their apparent pursuit of authentic English, and how they evaluate their learning experience in the Philippines. This paper finds that the Philippines holds a niche market in the global ELT industry by separating a space for English learning from other public and everyday spaces of English use and offering pedagogically intensive but emotionally supportive environments to English learners.     

麻黄综合研究 Ⅰ麻黄史料考证

本文对我国麻黄的名称、植物及其医药研究史料进行考证。同时，把麻黄研究历史分为前后汉时期、两晋南北朝隋唐时期、宋元金时期、明清时期、旧中国时期和新中国时期。     

Cultural differences in an interorganizational network: Shared public relations firms among Japanese and American companies

This article investigates the impact of national culture on interorganizational relationships among the organizations. Thirty-five companies which have stock offerings in U.S (17 Japanese and 18 American) were matched by their business types. The interorganizational network was defined as the number of shared public relations firms among the companies.A network analysis revealed that the network of shared public relations firms was loosely connected and American companies were more central. The companies were generally clustered into two groups, one composed of the Japanese companies and another of the American companies. However, the results also showed that some companies that had the same business type were more tightly clustered than others within the group. These results indicated that the network structure of shared public relations firms was influenced by the differences in national cultures as well as the companies' business types.     

Structured Voluntary Youth Activities and Positive Outcomes in Adulthood: An Exploratory Study of Involvement in Scouting and Subjective Well-Being

This study explores whether youth involvement in Scouting has positive consequences later in life. We examine whether the number of years of participation in Scouting is positively associated with human and social capital and recreational lifestyles in adulthood, and whether these are linked to subjective well-being: relational, emotional, and physical health. To explore this potential relationship, we estimated a structural equation model, analyzing data from a national sample of adult males. We found that youth involvement in Scouting is positively related to subjective well-being indirectly via the positive adult outcomes.