• Korean Journal of Construction Engineering and Management
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• v.5 no.1 s.17
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• pp.88-98
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• 2004

In recent, Information Technology(IT) is the biggest issue on the social whole including the construction industry. IT is recognized as a key strategic means to reinforce competitive power and raise the effectiveness. However, CEOs of each firm have trouble with IT investment decision-making. Because there is neither any case to measure real value of IT nor any confidence to economic effect of information system. IT evaluation is so helpful for most construction firms to make a plan of IT investment. In addition, which will eventually facilitate to achieve their management goal and have the maximum of the firms' value. Therefore, the purpose of this research is to develop IT evaluation system for monitoring IT level continually. And this will be enable a construction company to increase IT investment and improve the level of IT in the construction industry.

• Information Systems Review
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• v.11 no.3
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• pp.169-189
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• 2009

Over the past three decades, the impact of information technology (IT) investments on firm performance has been the subject of active research. Despite increasing importance of research into the productivity of IT in developing countries, almost all findings on IT productivity have been based on data collected in developed countries. This study investigates the effects of IT investment on firms' financial performance in the insurance industry of Korea, which is OECD member and can be classified as a developed country in IT perspective, and in the electronics industry of China, which is a developing country, and compare them. The findings show that IT investment has a positive and significant impact on firm efficiency in both Korea and China, but a weakly positive impact on firm growth in only Korea. Moreover, the size of the impact on efficiency (ROA) in China is significantly larger than that in Korea.

• Journal of Convergence for Information Technology
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• v.11 no.5
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• pp.94-103
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• 2021

This study aims to propose technical trading rules for Bitcoin futures and empirically analyze investment performance. Investment strategies include standard trading rules such as VMA, TRB, FR, MACD, RSI, BB, using Bitcoin futures daily data from December 18, 2017 to March 31, 2021. The trend-following rules showed higher investment performance than the comparative strategy B&H. Compared to KOSPI200 index futures, Bitcoin futures investment performance was higher. In particular, the investment performance has increased significantly in Sortino Ratio, which reflects downside risk. This study can find academic significance in that it is the first attempt to systematically analyze the investment performance of standard technical trading rules of Bitcoin futures. In future research, it is necessary to improve investment performance through the use of deep learning models or machine learning models to predict the price of Bitcoin futures.

• Journal of Digital Convergence
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• v.14 no.1
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• pp.53-63
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• 2016

This study aims to discuss what is needed for meaningful development of social service, focusing on Community Service Investment Project(CSIP). The contents of CSIP were analyzed on applying the Analytic Framework by N. Gilbert and H. Specht and the values that were the basis of social choice. Based on the analysis of output and policy value of this Project, this study draws three social service policy issues. First, 'localization' is needed to be emphasized more in CSIP because there are few programs that take into account the regional peculiarities. Second, as the social services focused on the individuality of the citizen is more important, it is necessary to examine 'sustainability' of CSIP. Third, in relation to the community building, it is necessary to discuss the modification of the CSIP's goals. As process for improving community, it is needed to review for local residents not participating in decision-making process, income-based user selection and appropriateness of the term 'investment' in the project name.

• Korean Journal of Construction Engineering and Management
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• v.11 no.6
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• pp.54-64
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• 2010

A firm decides to go to the project based on its investment analysis. However, the cash flows generated from the real project can not be always coincident with what expected as it follows uncertain behavior and the asymmetric payoff caused by the managerial flexibilities involved in the real asset affects the project value. Amongst various managerial flexibilities entailed in most of the real assets, although investment delay has been known to enhance the project value thanks to its ability to provide new market information to management, the related research to select the time to invest have been just few. Therefore, this research aims to show the theoretical framework to decide when to invest reflecting the behaviors of increasing project value and loss recovery cost due to investment delay with option pricing, related financial economic, and variational theories.

• Journal of Korean Society of Transportation
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• v.23 no.2
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• pp.37-50
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• 2005

This study analyzes the effect of airport investment on GRDP(Gross Regional Domestic Product) using Regional Production Function with public investment on social infrastructure. Particularly it includes the spillover effect of airport investment on the economies of neighbor regions beyond border. We estimate regional production function with the independent variable of airport investment stock using panel data with regional cross-section and time-series data. In the analysis with aggregate data of all industries, it shows the positive relationship between airport investment and GRDP which implies the affirmative effect of airport investment on regional economy in the aspects of direct and indirect spill-over effects. On the contrary, the research results of each industry do not appear to be the same. With the different characteristics of each industry, the direct and indirect effect may not be the same and the SOC investment contributes to the restructuring of regional economy by altering the industrial organizations of any specific region and its neighbors.

• Journal of Digital Convergence
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• v.15 no.6
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• pp.1-8
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• 2017

This study examined the factors influencing foreign direct investment(FDI) in OECD countries where Korea is a target country. The differences in the cultural distances of host and home countries and the difference in the perceptions of corruption have been used to identify the factors affecting foreign direct investment. As a result of the study, it was found that there are differences in foreign direct investment according to cultural dimension and corruption perceptions index. Foreign direct investment may increase or decrease depending on the cultural tendency and the higher the perceptions of corruption, the more active the investment. The smaller the power distance between host country and home country in the factors affecting foreign direct investment, the larger the number of investments and the larger the size of individualism versus collectivism. Foreign direct investment increased when the investing country's corruption perceptions index was high. The results of this study confirm that cultural and corruption perceptions can affect trade transactions. Therefore, it is necessary to consider the cultural tendency and the cultural distance in the trade transaction by confirming that the degree of culture and corruption perceptions can affect the trade transaction. And that it can influence trade and economic growth by appropriately managing social variables such as public corruption.

• Korean Journal of Construction Engineering and Management
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• v.19 no.2
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• pp.83-95
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• 2018

The aim of this paper is to develop a performance evaluation model for PPP (Public-Private Partnership) projects that appropriately reflects the important traits that are unique to PPP projects. To this end, 1) it defines a set of distinct perspectives involved in the PPP projects and their associated success factors that might differ amongst the perspectives; 2) it identifies the key performance indicators and suggests the performance evaluation criteria for each indicator; and 3) it builds a performance evaluation model by matching the success factors from each perspective with performance measure criteria as well as applies the model to the two selected BTO road projects in Korea. The process of model construction and its application confirms significant differences between the main stakeholder perspectives typically involved in PPP projects, which highlights the need for an evaluation model tailored for PPP projects by taking into account the distinct perspectives. The results from the PPP evaluation model developed in the study is compared against the results from the existing ex-post evaluation model for construction projects in general. The former shows a closer match with the results from the user satisfaction survey conducted. This new evaluation framework and the performance indicators entailed in it permits a balanced evaluation of PPP projects as it takes into account different perspectives involved in PPP projects as well as an understanding of the factors affecting the success of PPP projects. While the construction of the model is based on transport projects, it is applicable to different types of PPP projects through variation with the weight allocation amongst different success factors and/or additions or other adjustments to the performance evaluation criteria as required.

• Plant Journal
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• v.8 no.3
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• pp.42-48
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• 2012

Under traditional analysis of the capital budgeting, NPV, it is assumed that management cannot react to deviation from the expected scenario of cash flow at the time of evaluation. In practice, however, it is less likely that the expected scenario will come true when new information arrives and uncertainty is resolved. Uncertainty and risk can be influenced through 'managerial flexibility', which becomes a central instrument for value creation. Real option framework including option to defer, option for staged investment, option to alter, option to abandon, option to switch, etc. takes this managerial flexibility into account. Therefore, it is more appropriate to use real option method to evaluate the project than the traditional DCF(discounted cash flow) tool if the firm has high volatility of the expected returns.

• Journal of Information Technology and Architecture
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• v.11 no.1
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• pp.1-10
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• 2014

From 2004 to 2013, the annual investment for the ICT sector in Korea amounted to about 3.2 trillion won. Depending on whether the government policy allowed for budget increases and/or decreases, this impacted the investment in the ICT sector. In particular, the fixed costs of operation and maintenance lead to a reduced chance for a new potential demands in IT programs. Even though a situation may exist that there are insufficient funds available, there is a need for building a sustainable long-term IT investment management system. The purpose of this study is to conduct basic research for the arrangement of preparation to meet IT needs required in the public sector. For this, this paper introduces the concept of IT Investment Management based on prudent forecasting. After both foreign and domestic relevant cases are reviewed, implications will be derived from the aforementioned cases. Through this process, the direction of IT Investment Management based on forecasting for the IT projects decision making will be suggested. These research results could be used for helping to develop better policies and a more efficient management of the public sector IT budget.