Huang, Hanyun. / Thesis (Ph.D.)--Chinese University of Hong Kong, 2011. / Includes bibliographical references (leaves 224-242). / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Abstract also in Chinese; appendix in Chinese.

published_or_final_version / Social Work and Social Administration / Doctoral / Doctor of Philosophy

published_or_final_version / Social Work / Master / Master of Social Work

published_or_final_version / Social Work / Master / Master of Social Work

University of Macau / Faculty of Social Sciences. / Department of Communication

University of Macau / Faculty of Social Sciences. / Department of Communication

Decisions regarding exploration and exploitation are strategically important to Chinese new ventures. Most previous studies have tended to study these two processes in isolation rather than jointly despite the obvious symbiosis between them, not to mention that even less attention has been paid to identify how contextual factors influence how these two processes are managed and controlled. / In conclusion, the evidence noticeably refutes the static or fragmented perspectives on exploration and exploitation, strong and weak ties, and incremental and radical CE and demonstrates that a system dynamics model linking them is warranted. / Study 1 involved system dynamics modeling based on case studies. The findings were as follows: first, performance gap is positively related to exploration and negatively related to exploitation during the early, middle, and late stages of organizational development; exploration is positively related to total knowledge stock and total knowledge stock in turn is positively related to exploitation in the early stage; and exploitation is negatively related to firm-specific uncertainty and firm-specific uncertainty in turn is positively related to performance gap in both the early half of the middle and the late stages. Second, strong ties facilitate exploitation and weak ties facilitate exploration during the early, middle, and late stages; also, firm-specific uncertainty is positively related to weak ties and negatively related to strong ties in the early stage and in the early half of both the middle and the late stages. Third, radical CE directs exploration and incremental CE directs exploitation in the early stage; and total knowledge stock facilitates both incremental and radical CE during the early, middle, and late stages. / Study 2 involved structural equation modeling based on a large sample of new ventures. The findings were as follows: first, most of the recursive positive relationships in Study 1 were supported in the total sample. Second, for three sub-samples of new ventures during different development stages, only the recursive positive relationships between radical CE and exploration and between incremental CE and exploitation were supported among all the three sub-samples, which was not consistent with the findings in Study 1. Third, the change patterns of the significant relationships in different samples were generally consistent with those findings in Study 1. / This thesis develops a system dynamics model of exploration and exploitation. The main propositions are that exploration is dynamically linked with exploitation and social network and corporate entrepreneurship systematically influence the dynamic relationship. Two studies, one qualitative and one quantitative, were conducted in the empirical setting of Chinese new ventures. Generally, supporting evidence was found for the main hypotheses. / Jiang Chunyan. / "February 2006." / Adviser: Shige Makino. / Source: Dissertation Abstracts International, Volume: 67-11, Section: A, page: 4248. / Thesis (Ph.D.)--Chinese University of Hong Kong, 2006. / Includes bibliographical references (p. 156-171). / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Electronic reproduction. [Ann Arbor, MI] : ProQuest Information and Learning, [200-] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Electronic reproduction. Ann Arbor, MI : ProQuest Information and Learning Company, [200-] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Abstracts in English and Chinese. / School code: 1307.

published_or_final_version / Nursing Studies / Master / Master of Nursing in Advanced Practice

Between 2001 and 2011, a total of 509,809 new immigrants have migrated from Mainland China to Hong Kong on the One-way Permit for family reunification, in which 69.7% were female who are typically wives of Hong Kong permanent residents. How these marriage migrants integrate into Hong Kong society and the assessment of their impact to Hong Kong is becoming a pivotal issue. Many studies and surveys indicated that these marriage migrants have encountered tremendous difficulties during their course of immigration adaptation, and many have resulted in severe psychological stress. Extensive literature has empirically documented that social support facilitates immigrants’ ability to make use of relationships to buffer their adaptation challenges and to promote their integration into the new environment. Yet hardly any studies have examined the determinants and changes of social support among these marriage migrants within a longitudinal framework. The purpose of this study is to investigate the determinants of social support, including the structural, functional and the perception of social support. The “Social Support Mobilization Model” suggests that perceived stress leads to an increase in social support. On the contrary, the “Social Support Deterioration Model” suggests that persistent high level of stress erodes social support over time. This study test the Deterioration Model by examining the impact of lingering of stress levels on social support. Using a random sample of 211 Chinese marriage migrants from a two-year longitudinal secondary data, bivariate and multiple regression analyses were performed to examine the associations of social support with acculturation stress, persistent stress, psychological well-being, optimism and perceived neighborhood disorder. Findings indicated that marriage migrants have difficulties in re-establishing their social network outside their own community. Acculturation stress and psychological well-being were found to be the two most crucial factors affecting social support. Acculturation stress predicted both the structural and functional aspects of social support, but not the perceived social support. The psychological well-being, on the other hand, exerted significant influence on both the functional and perceived social support, but not on the structural social support. Results suggested that social support interventions should focus on alleviating acculturation stress, expanding social networking opportunity outside of their own immigrant community and enhancing psychological well-being. Besides, professional counseling and psychological support services should be provided to new immigrants, especially those who have experienced high level of stress. / published_or_final_version / Social Work and Social Administration / Doctoral / Doctor of Philosophy

published_or_final_version / abstract / Social Work and Social Administration / Master / Master of Philosophy