On cubic 2-independent Hamiltonian connected graphs

A graph G=(V,E) is Hamiltonian connected if there exists a Hamiltonian path between any two vertices in G. Let P ₁=(u ₁,u ₂,…,u _|V|) and P ₂=(v ₁,v ₂,…,v _|V|) be any two Hamiltonian paths of G. We say that P ₁ and P ₂ are independent if u ₁=v ₁,u _|V|=v _|V|, and u _i ≠v _i for 1<i<|V|. A cubic graph G is 2-independent Hamiltonian connected if there are two independent Hamiltonian paths between any two different vertices of G. A graph G is 1-Hamiltonian if G−F is Hamiltonian for any F⊆V∪E with |F|=1. A graph G is super 3^*-connected if there exist i internal disjoint paths spanning G for i=1,2,3. It is proved that every super 3^*-connected graph is 1-Hamiltonian. In this paper, we prove that every cubic 2-independent Hamiltonian connected graph is also 1-Hamiltonian. We present some cubic 2-independent Hamiltonian connected graphs that are super 3^*-connected, some cubic 2-independent Hamiltonian connected graphs that are not super 3^*-connected, some super 3^*-connected graphs that are not 2-independent Hamiltonian connected, and some cubic 1-Hamiltonian graphs that are Hamiltonian connected but neither 2-independent Hamiltonian connected nor super 3^*-connected. Dedicated to Professor Frank K. Hwang on the occasion of his 65th birthday. This work was supported in part by the National Science Council of the Republic of China under Contract NSC 94-2213-E-233-011.     

Internationalization and performance: The moderating effects of organizational learning

By proposing a conceptual outline for a general model that explains the internationalization–performance link, we test the moderating effects of organizational learning on the relationship between internationalization and performance empirically. Integrating two distinct literature streams from the organizational learning perspective and the resource-based view, we present an integrated, multidimensional framework for analyzing multinational enterprises’ (MNEs’) resources, internationalization, and organizational learning, as well as their associated impact on firm performance. Specifically, using a sample of 110 American MNEs, we find that while certain MNE resources motivate and precede internationalization, social and market learning (whereas technological learning does not) moderates the relationship between internationalization and performance. These findings extend prior research by establishing the importance of the relationships among MNE resources, internationalization, organizational learning, and firm performance.     

THE TIMING OF WELFARE PAYMENTS AND INTIMATE PARTNER VIOLENCE

I examine transfer schedules for the Temporary Assistance for Needy Families (TANF) program and find a causal relationship between the time directly after welfare payments and intimate partner violence against women. This study supports the hypothesis that the husband uses threats of violence as an instrument to gain control over the allocation of household resources, and suggests that the increased incidence in physical violence after welfare payments is associated with alcohol use. Additionally, I find that states that pay TANF recipients twice a month do not have this effect on threats of violence. This suggests that smaller, more frequent payments may reduce the husband's incentive to use verbal violence as a bargaining tool. (JEL I38, J18, J12)     

‘Going Out’ or Staying In? The Expansion of Chinese NGOs in Africa

This article examines the overseas behaviour of Chinese non‐governmental organisations (NGOs) in two African nations, Ethiopia and Malawi, with varying political regime types. Our findings suggest that, irrespective of regime type, Chinese NGOs have yet to make a substantial impact in either nation. We argue that, despite the strength of the Chinese state and high levels of international development assistance given, domestic politics and regulatory frameworks in host nations still matter a great deal. Our study suggests that the Chinese model of international development will continue to be one in which temporary one‐off projects are favoured; and, insofar as social organisations will play a role, they will be in the domain of government‐organised NGOs rather than grassroots NGOs.     

The Impacts of Education,Adverse Childhood Experience,and Nativity on Intimate Partner Violence

This paper tested an implication of household bargaining theory, that women with higher human capital experience less intimate partner violence. Relying on a single source of income imposes a barrier to leaving an abusive relationship. Women with higher human capital are better equipped to leave a relationship, which allows them to tolerate less violence in a relationship. Using a California health survey dataset, we found that more educated women were less likely to experience spousal violence. We used the detailed nature of the data to control for commonly omitted variables such as adverse childhood experiences. In addition, we found that the effect of education on intimate partner violence varied by nativity (US-born vs. foreign-born) and was smaller for foreign-born women. Drawing from the literature on the returns to education by race, we hypothesized that foreign-born women have a lower return on human capital, which in turn moderated the effect of education on household bargaining power.     

Alleviating poverty or reinforcing inequality? Interpreting micro‐finance in practice,with illustrations from rural China

Academic and political discussions about micro‐finance have been found lacking in predictive power, because they are based on orthodox economic theory, which does not properly comprehend the social components of credit. I take a better approach, utilizing credit theory – specifically, Ingham's explication of how the nature of money as credit leads to social inequality. I also expound the perspective that morality is not separate from considerations borrowers make in micro‐finance programmes on the micro level. I draw upon illustrations from my fieldwork in rural China, where a group‐lending micro‐finance programme was administered as part of a larger government‐initiated effort across the country.     

The distribution of the ratio of independent central wishart determinants

Ratios of independent central Wishart determinants are useful statistics in multivariate analyses, particularly in the study of multivariate linear models. A method based on the inversion of characteristic functions is outlined for deriving new experessions for the probability distribution functions of the logarithms of these statistics. Accurate tables of the percentiles of these distributions have been obtained covering many bivariate and trivariate cases which have been computed by approximating these expression.     

海峡两岸高等技术职业教育体系优势互补与合作

台湾自1950年代开始全力发展经济以来,从劳力密集型经济走向技术密集型经济,高等技术职业教育是最大的驱动力。知识即教育,台湾高等技术职业教育的优势在于丰沛的创意与创新力,在教育政策、产业发展、创新育成、产学合作、人才培育、技术管理等方面,拥有核心价值和丰富的成功经验和能力,促进了台湾经济高速发展。内地拥有广大优质的人力资源、丰富的物产资源及文化资源,两岸高等技术职业教育合作,将深化两岸经济、文化、技术交流,携手在经济全球化的舞台上为华人建立全世界最大的经济体,共创两岸人民富裕幸福的生活。     

Multi-objective machine-component grouping in cellular manufacturing: A genetic algorithm

The cellular manufacturing system (CMS) is an important group technology (GT) application. The first step of CMS design is cell formation, generally known as machinecell formation (MCF) or machine-component (MCG). A genetic algorithm (GA) is a robust adaptive optimization method based on principles of natural evolution and is appropriate for the MCG problem, which is an NP complete complex problem. In this study, we propose a GA-based procedure to solve the MCG problem. More specifically, this study aims to minimize (1) total cost, which includes intercell and intracell part transportation costs and machines investment cots; (2) intracell machine loading imbalance; and (3) intercell machine loading imbalance under many realistic considerations. An illustrative example and comparisons demonstrate the effectiveness of this procedure. The proposed procedure is extremely adaptive, flexible, efficient and can be used to solve real MCG problems in factories by providing robust manufacturing cell formation in a short execution time.