On the strong convergence for weighted sums of random variables

A strong convergence result is obtained for weighted sums of identically distributed negatively associated random variables which have a suitable moment condition. This result improves the result of Cai (Metrika 68:323–331, 2008).     

The influence of corporate social responsibility and customer–company identification on publics’ dialogic communication intentions

The purpose of this study was to examine the effects of consumers’ perceptions of the company's corporate social responsibility on their intentions to engage in dialogic communications with a company (i.e., feedback), and to investigate the mediation role of their identification with the company in such effects. The findings indicated a significant relationship between corporate social responsibility and publics’ intentions to engage in dialogic communications. Also, customer–company identification was found to mediate such effects.     

The Attitudes of Social Work Students Toward End-of-Life Care Planning

This study examined the attitudes of social work students toward end-of-life care planning, as well as their degree of willingness to engage in this area of social work practice. Factors associated with their attitudes were measured through structured surveys completed by 102 social work students (N = 102) at a school of social work in the southeast. Results indicated that these social work students tended to have positive attitudes toward end-of-life care planning in general. Moreover, these attitudes were positively associated with preference for pain relief treatment, higher levels of comfort when discussing death, more emphasis on self-determination, and apprehension of conflicts of self-determination. The results of this study underscored the increased societal need for recognition of personal preferences in end-of-life care, higher levels of comfort when discussing death, and an increased commitment of social workers' to maintaining the ethical principle of the client's right to self-determination in end-of-life planning. While this is not surprising, it points to a continuing need to re-assess where the field stands in its preparation of social work professionals who will work closely with people who are dying and their families.     

Value of Sharing Production Yield Information in a Serial Supply Chain

New developments in corporate information technology such as enterprise resource planning systems have significantly increased the flow of information among members of supply chains. However, the benefits of sharing information can vary depending on the supply chain structure and its operational characteristics. Most of the existing research has studied the impact of sharing downstream information (e.g., a manufacturer sharing information with its suppliers). We evaluate the benefits of sharing upstream yield information (e.g., a supplier sharing information with the manufacturer) in a two‐stage serial supply chain in which the supplier has multiple internal processes and is faced with uncertain output due to yield losses. We are interested in determining when the sharing of the supplier's information is most beneficial to the manufacturer. After proposing an order‐up‐to type heuristic policy, we perform a detailed computational study and observe that this information is most beneficial when the supplier's yield variance is high and when end‐customer demand variance is low. We also find that the manufacturer's backorder‐to‐holding cost ratio has little, if any, impact on the usefulness of information.     

Optimal Berry–Esseen bound for parameter estimation of SPDE with small noise

We investigate a rate of convergence on asymptotic normality of the maximum likelihood estimator (MLE) for parameter $\theta$ appearing in parabolic SPDEs of the form

$d{u}^{?}(t,x)=(A_0+\theta A_1)u^{?}(t,x)dt+?dW(t,x),$

where $A_0$ and$A_1$ are partial differential operators, $W$ is a cylindrical Brownian motion (CBM) and $?\downarrow 0$. We find an optimal Berry–Esseen bound for central limit theorem (CLT) of the MLE. It is proved by developing techniques based on combining Malliavin calculus and Stein’s method.     

Optimal consumption and portfolio selection with negative wealth constraints,subsistence consumption constraints,and CARA utility

We consider the optimal consumption and portfolio selection problem with constant absolute risk aversion (CARA) utility. The economic agent in this model receives constant labor income, and her economic behavior is restricted on consumption and wealth, which are called the subsistence consumption constraint and the negative wealth constraint. We use the convex duality method to derive the value function and the optimal policies in closed-form solutions. Also we illustrate some numerical examples.     

On the historical determinants of third sector strength: A qualitative comparative analysis

This study proposes a theoretical explanation for the main causes of the third sector's strength. A Boolean comparative analysis based mainly on the theoretical frameworks of Rokkan and Esping-Andersen indicates that the combination of state-supported urban interests and Protestantism are necessary conditions. This result is very close to Max Weber's explanation of civil society which presupposes the facilitating role of the autonomous state. Thus, the empirical results are reinterpreted within the context of a Weberian explanatory framework. The implications of this endeavor within the historical context of developing countries are further explicated.     

The social welfare reform during the progressive regimes of South Korea: Theoretical implications

This study assesses the social welfare reform during the progressive regimes of South Korea (hereafter Korea) led by President Kim Dae-Jung (1998-2003) and President Roh Moo-Hyun (2003-2008), and considers its theoretical implications. Analysis of the social welfare reform under the two progressive governments has indicated that the reform did not produce the anticipated results. Although the Korean economy has grown rapidly along with a considerable increase in the national income per capita in comparison with that in the past, the country's social welfare system still remains significantly underdeveloped in all respects, relative to that of all the other OECD countries with similar economic power, let alone the advanced welfare states in Western Europe. This study maintains that the key reason for the inertia or status quo despite the significant efforts of both the governments to expand social welfare is explained in the Korean growth-first doctrine, which inherently considers that distribution hinders growth and that social policy is secondary to economic policy, thus limiting the choices of the country's decision makers, as has been the case all along since the developmental period. Given that the growth-first doctrine inherently regarded the relationship between growth and welfare as mutually exclusive, it was perhaps natural that the influence of the doctrine upon the social welfare policy of both the progressive governments would not be so positive. This suggests that path dependence is active in the case of the Korean social welfare policy, thus substantiating the validity of path-dependence theory.     

Proportional hazards model for competing risks data with missing cause of failure

We consider the semiparametric proportional hazards model for the cause-specific hazard function in analysis of competing risks data with missing cause of failure. The inverse probability weighted equation and augmented inverse probability weighted equation are proposed for estimating the regression parameters in the model, and their theoretical properties are established for inference. Simulation studies demonstrate that the augmented inverse probability weighted estimator is doubly robust and the proposed method is appropriate for practical use. The simulations also compare the proposed estimators with the multiple imputation estimator of Lu and Tsiatis (2001). The application of the proposed method is illustrated using data from a bone marrow transplant study.     

Korean Social Work Students’ Attitudes Toward Homosexuals

For this article, the Hudson and Ricketts Index of Attitudes toward Homosexuality (IAH) was used to measure levels of homophobia in a convenience sample of 124 students enrolled in social work programs in two major universities in the Republic of South Korea. The results indicated that BSW and MSW Korean students had high levels of homophobia, particularly in comparison to U.S. samples. In-class discussion of homosexuality was found to be significantly associated with lower levels of homophobia. The authors review these and other research findings and discuss implications for social work education in South Korea and the United States.