• Asia pacific journal of information systems
• /
• 제25권3호
• /
• pp.445-472
• /
• 2015

Although knowledge transfer between two different parties occurs in IS development projects, the majority of prior studies focused on knowledge transfer from IT consultants to clients. Considering two parts of knowledge transfer in IS development projects, we must consider both 'where knowledge is transferred from' and 'where it is transferred to'. Therefore, in this study, we attempt to describe two different routes of knowledge transfer, such as knowledge transfer from an IT consultant to a client and knowledge transfer from a client to an IT consultant. In this regard, we have examined the effect of two different routes of knowledge transfer on system implementation success in IS development project. Specifically, we adopted the knowledge stock-flow theory to examine the causal relationship between IT consulting firms and clients in terms of knowledge transfer and eventual system implementation success. Survey data collected from 213 pairs of individuals (both clients and IT consultants) were used to test the model using three different analytic approaches such as PLS (partial least squares) and two types of mediated regression techniques. We found that knowledge transfers partially mediated both the relationships between IT consultants' IT skills (project members' business knowledge) and system implementation success. Furthermore, the effects of each knowledge transfer were distinguished by depending on the types of system, such as ERP or groupware. Our attempts have significant implications for both research and practice given the importance of effective knowledge transfer to IT consulting.

• 한국산림과학회지
• /
• 제96권3호
• /
• pp.283-289
• /
• 2007

편익-비용분석은 국립공원 보전과 같은 공공투자 정책의 상대적 가치에 관련된 정보를 파악하는데 매우 유용한 분석도구이다. 편익과 비용이 화폐단위로 계산될 수 있으면 순편익을 계산하여 공공후생을 최대로 얻을 수 있는 정책적 대안을 규명할 수 있다. 그러나 국립공원에서 파생되는 재화와 용역은 일반시장에서 판매되지 않기 때문에 국립공원의 보존정책 결과를 금액으로 계산하는 것은 그리 쉽지 않다. 이 경우 비시장재의 편익가치를 측정하기 위하여 이선선택형 가상가치평가법이 가장 널리 적용된다. 본 연구는 이선선택형 가상가치평가법의 일종인 Turnbull 분포무관모형을 이용하여 월악산국립공원의 경제적 가치를 추정하고 최종적으로 자산가치를 평가하였다. 평가결과, 연간이용가치는 65억원, 연간보존가치는 1,374억원으로, 프로우(flow)인 연간총가치는 1,439억원으로 추정되었으며, 스톡(stock)인 총자산가치는 약 3조217억원으로 평가되었다.

• The Journal of Asian Finance, Economics and Business
• /
• 제7권11호
• /
• pp.177-184
• /
• 2020

This paper analyzes factors affecting corporate investment decisions in economic groups listed on the Vietnam stock market. The panel data of the research sample includes 39 economic groups listed on the Vietnam stock market from 2009 to 2019. The Generalized Least Square (GLS) is employed to address econometric issues and to improve the accuracy of the regression coefficients. In this research, the investment rate is a dependent variable. Cash-flow (CF), Investment opportunities (ROA), Fixed capital intensity (FCI), Leverage (LEV), Sales growth (GR), Size (SZ), Business risk (RISK) are independent variables in the study. The model results show that cash flow and sales growth have the same impact on investment decisions of economic groups in Vietnam. In addition, investment opportunities have a negative impact on the capital investment decisions of economic groups. The remaining factors include fixed capital intensity, leverage, firm size, and business risks that have a weak and insignificant impact on capital investment decisions of economic groups in Vietnam. The findings of this article are useful for business administrators, and helping business managers make the right financial decisions. Besides, the research results are also meaningful to money management agencies. The authors recommend that the State Bank of Vietnam should maintain a sustainable monetary policy.

• 한국항공운항학회지
• /
• 제30권4호
• /
• pp.65-75
• /
• 2022

This study aims to forecast of Air Passenger Demand between South Korea and North Korea using the system dynamics analysis methodology that is based on the system thinking. System dynamics is not only a tool that makes the systematic thought to a model but also a computer program-based analysis methodology that mathematically models the system varying according to time variation. This study analyzed the causal relationship based on the interrelation among variables and structured them by considering various variables that affect aviation cooperation from the perspective of Air passenger demand forecasting. In addition, based on the causal relationship between variables, this study also completed the causal loop diagram that forms a feedback loop, constructed the stock-flow diagram of Inter-Korean model using Vensim program. In this study, Air passenger demand was using by the simulation variable value into System Dynamics. This study was difficult to reflect the various variables constituting the North Korea environment, and there is a limit to the occurrence of events in North Korea.

• 자원ㆍ환경경제연구
• /
• 제13권2호
• /
• pp.301-322
• /
• 2004

기존 석유비축사업은 안보 위주의 정태적(stock) 개념에 바탕을 둔 것으로 최근의 여건 변화에 따라 경제성 위주의 동태적(flow) 개념으로 전환될 필요성이 대두되고 있다. 본 연구에서는 석유비축의 경제성 제고 방안으로서 유가시황에 따라 베이시스를 활용한 선택적 거래전략을 제시하고, 이들 거래전략의 효과를 정량적으로 분석하였다. 이를 위해, WTI 유종을 대상으로 1997년 10월~2002년 8월에 해당하는 주간 현물가격과 선도가격을 활용하여 선택적 거래의 유용성을 검증하였다. 분석결과를 요약하면, 유가상황을 고려하지 않는 경우에 비해 선택적 거래가 수익의 기대값을 향상시키고, 이의 변동성을 감소시킬 수 있다. 또한, 선택적 거래에서도 실행수준을 고려하여 다시금 선택적으로 거래하는 경우가 수익의 기대값을 증가시키고 위험을 감소시킬 수 있다. 이상의 분석결과를 토대로, 비축시설과 비축유를 적극적으로 활용함과 동시에 적절한 형태의 파생상품거래를 병행하는 것이 국내 석유비축사업의 경제성을 제고하는데 도움이 될 것으로 판단된다.

• The Journal of Asian Finance, Economics and Business
• /
• 제7권10호
• /
• pp.803-810
• /
• 2020

This objective of this study is to enrich the literature by the debt ratio and enterprise performance of Joint stock companies of Vietnam National Coal and Mineral Industries Holding Corporation Limited (Vinacomin). The debt ratio is an important index of capital structure, and it influences and decides the enterprise performance. Therefore, the determination of reasonable debt ratio level is beneficial to the stable operation of Vinacomin's enterprises. Based on the research conclusion about the effect on capital structure of debt ratio from domestic and foreign scholar, collecting data from 2014-2018 of Vinacomin's enterprises as a research sample, the article conducts research on the relationship between debt ratio and business performance of Vinacomin, as measured by return on total Assets. In addition, the study uses free cash flow, company size, growth opportunity, investment opportunities, operating costs to sales ratio as control variables.The study shows the debt ratio of Joint stock companies of Vietnam National Coal and Mineral Industries Holding Corporation Limited has a negative effect on the enterprise performance. Furthermore, the research results of the article are references for Vinacomin' enterprises in the course of production and business activities, determining a reasonable debt ratio, and improving the operational performance of enterprises.

• 한국시스템다이내믹스연구
• /
• 제7권1호
• /
• pp.91-118
• /
• 2006

The purpose of this study is to find what factors are directly related to the delay of public projects, usually going beyond the planned deadline and budget. From a series of System Dynamics simulation works applied to the Cheongju Cremation Project, the research finds that the negative externalities originated from the adjacent location of the LULU(locally unwanted land use) facilities have exerted significant influence on dynamic perceptions of key stakeholders, typically resulting in project delay. As shown repeated experiments, the proposed negotiation-based models would produce relatively higher planning performance level than the typical approaches hinged on the administrative-expediency tactics. Even though the former may require more human and material resources in the very beginning stage, as they have to deal with diverse grievances raised by major stake-holders, most of them would bound for strengthening reinforcing loops within the complex structure. These results also imply that negotiation or consensus-building approaches would enhance mutual agreement among stake-holders, upgrading the overall quality of project management.

• The Journal of Asian Finance, Economics and Business
• /
• 제7권6호
• /
• pp.85-93
• /
• 2020

The paper investigates the impact of the statement of cash flows of listed companies on lending decisions of commercial banks in the context of Vietnam. Survey data for the research were collected from 160 credit officers of Vietnamese commercial banks for short-term and long-term lending decisions, whether the cash flow statement includes complete information or has a lack of information. The cash flow statement, in which the information on the cash flow is completely contrary to the profit information on the income statement is examined. This paper employed T-tests to address the research issues in a market considered to be ineffective, like Vietnam. The research results show: (1) the information on the cash flow statement affects both the short-term and long-term lending decisions of credit officers, and (2) the lack of information on the cash flow statement in both cases of positive and negative profits affects the comfort and confidence of credit officers in making decisions. The research findings also indicate that cash flow statements are important for lending decisions of credit institutions in Vietnam. Therefore, this paper provides a new insight to managers on how to improve the quality of cash flow statement to meet the needs of lenders.

• Journal of Advanced Marine Engineering and Technology
• /
• 제22권1호
• /
• pp.52-66
• /
• 1998

An experimental study on the flow characteristics was performed for a two-dimensional turbulent wall attaching offset jet at different oblique angles to a surface. The flow characteristics were investigated by using a split film probe with the modified Stock's calibration method. The jet mean velocity, turbulent intensity, wall static pressure coefficient profiles, and time-averaged reattachment point were measured at the Reynolds number Re (based on the nozzle width, D) ranging from 17700 to 53200, the offset ratio H/D from 2.5 to 10, and the inclined angle .alpha. from 0.deg. C to 40.deg. C. The Correlations between the maximum pressure position, minimum pressure position, and reattachment point and offset ratios, and inclined angles are presented.

• 한국식품영양학회지
• /
• 제4권2호
• /
• pp.141-148
• /
• 1991

In order to Investigate the extraction mechanism of barley tea in cylindrical packed column, pilot plant scale packed column was designed and constructed. And extraction conditions for steady flow in the packed column were searched. The main results of this study are as follows ; 1. Circulation of the stock barley tea before the extraction running was indispensable In consideration of inequality, gas, particles existed in packed bed. Solid-liquid equilibrium was initially maintained after the circulation. 2. Flow direction of solvent must be up-flow for maintaining the constant bed height and flow rate during the extraction. Paessure drop in pucked bed was similar to decrease ratio of extract concentration. 3. The porosity of packed bed was in the range of 0.24∼0.36 according to the particle sloe. And it was decreased as the particle size became smaller.