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Aaron Rae Stephens(Aaron Rae Stephens ),Charles Arthur Robb(Charles Arthur Robb ),Minhyo Kang(Minhyo Kang) The International Academy of Global Business and T 2022 The International Academy of Global Business and T Vol.18 No.5
Purpose - Supply chain disruptions have plagued firms since the advent of COVID-19 lockdowns. As a result, supply chains remain unstable and dynamic. To better understand supply chain management during periods of disruption, this study compares the impact of relational capital on ambidextrous innovation and firm performance between Korean and U.S firms. Design/Methodology/Approach - This study includes a sample of 200 Korean firms and 227 U.S firms. PLS-SEM is the statistical tool utilized with MICOM multigroup analysis. Findings - Korean and U.S. firms were found to be different on three different pathways indicating that open innovation and investment in supplier relations improve supply chain disruption orientation, exploration innovation, and firm performance Research Implications - Relationship capital can significantly improve supply chain management, innovation, and firm performance. Exploitation innovation is better for enhancing supply chain management in the short-term amid interruptions.
Aaron Rae Stephens(Aaron Rae Stephens),Min-Hyo Kang(Min-Hyo Kang),Charles Arthur Robb(Charles Arthur Robb) 동아시아무역학회 2022 Journal of East Asian Trade(JEAT) Vol.4 No.1
Purpose – Supply chain disruptions have dominated business planning and performance since the beginning of the COVID-19 pandemic and continue to mar organizations through 2022. This research carefully examines the role of organizational culture in developing both supply chain resilience and market performance amid supply chain disruptions. Design/Methodology/Approach – An empirical study of over 200 South Korean firms were tested. The model is tested using PLS-SEM; furthermore, mediation effects enrich the quality of the findings. This research is framed utilizing the stimulus-organism-response model; thus, emphasizing the highly dynamic business environment that has ensued. Findings – The research confirms that supply chain disruption orientation, a strategic orientation and a proxy for a well-prepared organizational culture, leads to both supply chain resilience and market performance. Results also confirm that resilience reinforces market performance throughout the supply chain. Study contributions suggest that firms should consider themselves as organisms within a highly dynamic environment and develop a highly prepared organizational culture in order to bolster supply chain resilience and market performance. Research Implications – Scholars can further employ the stimulus-organism-response model in firm-level research and further study the link between organizational culture and supply chain performance amid COVID-19. Finally, the results of this research provide guidelines for organizations when they decide on operational procedures during the pandemic, as they aim to produce greater returns for their ventures.
ALMA Reveals Transition of Polarization Pattern with Wavelength in HL Tau’s Disk
Stephens, Ian W.,Yang, Haifeng,Li, Zhi-Yun,Looney, Leslie W.,Kataoka, Akimasa,Kwon, Woojin,Ferná,ndez-Ló,pez, Manuel,Hull, Charles L. H.,Hughes, Meredith,Segura-Cox, Dominique,Mundy, Lee,C American Astronomical Society 2017 The Astrophysical journal Vol.851 No.1
<P>The mechanism for producing polarized emission from protostellar disks at (sub) millimeter wavelengths is currently uncertain. Classically, polarization is expected from non-spherical grains aligned with the magnetic field. Recently, two alternatives have been suggested. One polarization mechanism is caused by self-scattering from dust grains of sizes comparable with the wavelength, while the other mechanism is due to grains aligned with their short axes along the direction of radiation anisotropy. The latter has recently been shown as a likely mechanism for causing the dust polarization detected in HL. Tau at 3.1 mm. In this paper, we present ALMA polarization observations of HL. Tau for two more wavelengths: 870 mu m and 1.3 mm. The morphology at 870 mu m matches the expectation for self-scattering, while that at 1.3 mm shows a mix between self-scattering and grains aligned with the radiation anisotropy. The observations cast doubt on the ability of (sub) millimeter continuum polarization to probe disk magnetic fields for at least HL Tau. By showing two distinct polarization morphologies at 870 mu m and 3.1 mm and a transition between the two at 1.3 mm, this paper provides definitive evidence that the dominant (sub) millimeter polarization mechanism transitions with wavelength. In addition, if the polarization at 870 mu m is due to scattering, the lack of polarization asymmetry along the minor axis of the inclined disk implies that the large grains responsible for the scattering have already settled into a geometrically thin layer, and the presence of asymmetry along the major axis indicates that the HL Tau disk is not completely axisymmetric.</P>
Aaron Stephens,Seog Soo Kim 한국국제경영관리학회 2015 국제경영리뷰 Vol.19 No.4
이 연구는 세 가지 전략지향성-시장지향성, 학습지향성, 기업가지향성-이 한국 기업의 국제성과에 어떠한 영향을 미치는지를 확인하기 위하여 설계되었다. 본 연구에서 연구자는 기업에 의한 정보의 창출, 정보의 이동, 정보의 활용을 확인하였다. 기업의 높은 국제성과에 대하여 앞서 제시한 세 가지 지향성이 기업의 흡수능력, 적응능력, 혁신능력에 어떠한 영향을 미치는지를 설명하기 위하여 동태적 능력 구조(dynamic capabilities framework)와 양손잡이이론(ambidexterity theory) 을 채용하였다. 이들 앞서 언급한 세 가지 지향성을 보유하는 기업은 국제성과에 도움이 되는 지식 탐색과 활용을 개선시킬 수 있는 것으로 나타났다. 연구자들은 국제적인 사업활동을 하는 한국기업의 경영자에게 상당한 함의를 제공하고 있으며, 국제성과에 대한 전략지향성, 동태적 능력의 역할을 확인 할 수 있었다. This study combines three strategic orientations: market orientation, learning orientation, and entrepreneurial orientation to show how these orientations affect exploration and exploitation to benefit international performance of Korean firms. This model identifies a process of information creation, movement and exploitation by firms. The dynamic capabilities framework and ambidexterity theory are employed to explain how these orientations affect a firm’s absorption capability, adaptation capability, and innovation capability to provide better international performance. Firms that embrace the three aforementioned orientations can improve knowledge exploration and exploitation to benefit international performance. This research provides implications for Korean managers operating internationally, and a model that confirms the role of strategic orientations, dynamic capabilities, and their effects on international performance.