• Korean Journal of Human Ecology
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• v.14 no.6
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• pp.915-924
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• 2005

In this study, two controversial Child Care Policies will be discussed based on the perspective of Economics: Accreditation of Child Care Centers and Liberation of Child Care Service Tuition. Liberation of Child Care Service Tuition is to provide parents and children with exact quality which they want at a differentiated price. Accreditation of Child Care Center is to enhance the quality of child care service by evaluating the quality of centers and grading centers into three classes. This study concludes that success or failure of the policies mostly depend on the investment capability of the government to increase the supply of child care centers. Employing these two policies requires the child care rate more than certain level and more financial investment from the government since the responsibility of providing child care services relies mostly on the government in Korea.

• Journal of the Korea Safety Management & Science
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• v.19 no.3
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• pp.81-87
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• 2017

Performance evaluation has been done using financial indices which are generally regarded as inappropriate for the organizations which are innovative and progressive. Thus, the Balanced Scorecard(BSC) was developed considering long term performance and invisible performance. This BSC has four perspectives of finance, customer, internal operation, and learning. Based on the BSC, a new BSC has been derived with a fifth view of environmental and social perspective, which is now called as a Sustainability BSC. In this study, we evaluated Green IT initiatives using the Sustainability BSC. The initiatives are categorized as RFID, telepresence, paperless office, logistics management etc. The initiatives were evaluated from the view of five perspectives, resulting in high cor relationships among finance, internal operation, and environmental and social perspectives. Namely, good initiatives from the view of environmental/social perspective are also evaluated as good from the view of finance and internal operation perspectives. In this study, we recommend organizations to introduce Green IT initiatives by showing how Green IT initiatives have contributed to the organizations.

• Journal of information and communication convergence engineering
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• v.20 no.4
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• pp.280-287
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• 2022

Recently, the number of mobile ransomware types has increased. Moreover, the number of cases of damage caused by mobile ransomware is increasing. Representative damage cases include encrypting files on the victim's smart device or making them unusable, causing financial losses to the victim. This study classifies ransomware apps by analyzing several representative ransomware apps to identify trends in the malicious behavior of ransomware. We present a technique for recovering from the damage, from a digital forensic perspective, using reverse engineering ransomware apps to analyze vulnerabilities in malicious functions applied with various cryptographic technologies. Our study found that ransomware applications are largely divided into three types: locker, crypto, and hybrid. In addition, we presented a method for recovering the damage caused by each type of ransomware app using an actual case. This study is expected to help minimize the damage caused by ransomware apps and respond to new ransomware apps.

• THE INTERNATIONAL COMMERCE & LAW REVIEW
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• v.33
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• pp.247-275
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• 2007

This paper is to propose the Direction for the institutional improvement of Financial Supply Chain Management(FSCM) Solution which are currently coming into operation under Global e-Trading Platform. The Financial Supply Chain compromise the entire trade processes and information that manage a trader's cash, Accounts payable and receivable, Risk, working capital, and so on in international trade transaction. From a buyer's perspective, this involves the full procurement-to-payment process. For the seller, it is the order-to-cash cycle. Bolero provides the party concerned a e-trade platform which conformed to these fundamental pre-requisites to underpin fully electronic trade. But this FSCM solution have failed to provide the efficient platform to effectively manage the process of Global e-Trade because it does not correspond with e-Trade environment. Therefore, present FSCM system need the institutional improvement as follows: AA) Strengthening the role of the correspondent Bank under e-Trade System, BB) Extending the function of e-Trade intermediary institution, CC) The introduction of Trade Insurance System, etc. So, by streamlining and automating these processes on an open and flexible platform, The party concerned can optimize their trade transaction and maintain better relations with their business partners

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2001.10a
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• pp.111-115
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• 2001

A good business performance measurement system is an effective tool io sustained growth in profits. Although interest in creating performance measurement models is widespread, a well-designed system is rare. To be successful in today's competitive environment, a performance measurement system should incorporate strategic success factors and contain financial and non-financial measuring index to carry out strategic management. In the 1990s, Kaplan & Norton introduced a concept called the Balanced Scorecard. The Balanced Scorecard supplements traditional financial measures with criteria that measured performance from three additional perspectives - those perspectives of customers, internal business processes, and learning and growth. This paper presents five measuring index criteria for each perspective. To calculate the relative priority for These measuring index, we investigate weights investigated by interviews with management consultant. Then, AHP method is employed for calculating priority weight. Our evaluation model may be referred to as the Balanced Analytic Hierarchical Performance Model(BAHPM) in the sense that the analytic hierarchical scheme, along with the AHP, is applied. The BAHPM is the first kind of analytical model to cover a wide variety of measures. In comparison with previous evaluation models, our model shows strengths in structural flexibility, ease of incorporating feedback, group evaluation capacity, participation promotion, sensitivity analysis, and computational simplicity. A prototype based on the BAHPM can be applied to various industry sectors.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.65 no.12
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• pp.2240-2250
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• 2016

MIFARE Classic is the most popular contactless smart card, which is primarily used in the management of access control and public transport payment systems. It has several security features such as the proprietary stream cipher Crypto 1, a challenge-response mutual authentication protocol, and a random number generator. Unfortunately, multiple studies have reported structural flaws in its security features. Furthermore, various attack methods that target genuine MIFARE Classic cards or readers have been proposed to crack the card. From a practical perspective, these attacks can be partitioned according to the attacker's ability. However, this measure is insufficient to determine the optimal attack flow due to the refined random number generator. Most card-only attack methods assume a predicted or fixed random number, whereas several commercial cards use unpredictable and unfixable random numbers. In this paper, we propose optimal MIFARE Classic attack procedures with regards to the type of random number generator, as well as an adversary's ability. In addition, we show actual attack results from our portable experimental setup, which is comprised of a commercially developed attack device, a smartphone, and our own application retrieving secret data and sector key.

• The Journal of Asian Finance, Economics and Business
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• v.8 no.2
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• pp.183-194
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• 2021

This study aimed to examine the effect of corporate characteristics, including the industrial sector and scale of operation, financial leverage, profitability, operating period, and social reputation, on socio-ecological responsibility based on Global Reporting Initiative (GRI) standards. The study was conducted in the Indonesian context. A total of 90 public companies listed on the Indonesia Stock Exchange were selected as samples, with an observation period of 10 years. A univariate regression analysis was applied to test the hypotheses. The results showed that the industrial sector, scale of operation, financial leverage, profitability, operating period, and social reputation of the corporate had a positive effect on socio-ecological responsibility. This study also obtained evidence that there were differences in the level of socio-ecological responsibility among the industrial sectors. The higher the relationship between the industrial sector and the possibility of the emergence of social and environmental issues, the higher the level of corporate socio-ecological responsibility. From a policy perspective, the implication of the results of this study was that it could be used as a consideration by the authorities or regulators in Indonesia, particularly the Financial Services Authority (OJK), in determining specific indicators of socio-ecological responsibility that must be carried out by corporates.

• International conference on construction engineering and project management
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• 2007.03a
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• pp.509-519
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• 2007

Private financing is playing an increasing role in public infrastructure construction projects worldwide. However, private investors/operators are exposed to the financial risk of low profitability due to the inaccurate estimation of facility demand, operation income, maintenance costs, etc. From the operator's perspective, a sound and thorough financial feasibility study is required to establish the appropriate capital structure of a project. Operators tend to reduce the equity amount to minimize the level of risk exposure, while creditors persist to raise it, in an attempt to secure a sufficient level of financial involvement from the operators. Therefore, it is important for creditors and operators to reach an agreement for a balanced capital structure that synthetically considers both profitability and repayment capacity. This paper presents an optimal capital structure model for successful private infrastructure investment. This model finds the optimized point where the profitability is balanced with the repayment capacity, with the use of the concept of utility function and multi-objective GA (Generic Algorithm)-based optimization. A case study is presented to show the validity of the model and its verification. The research conclusions provide a proper capital structure for privately-financed infrastructure projects through a proposed multi-objective model.

• The Journal of the Korea Contents Association
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• v.15 no.3
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• pp.499-507
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• 2015

This study aims to understand the phenomenon related to private schools and present the implication for policy about private school, network text analysis about newspaper editorials in conservative and progressive media was conducted. The main results are as follows. First, in newspaper editorials, there were many issues about private university and there was a distinction between private elementary secondary school and private university. Second, in newspaper editorials, 'encouraging perspective' such as financial assistance and new private school like self-governing private high school and 'controlling perspective' such as withdrawal of problem private schools were both appeared. As a result, this study presents that the perspective for private schools needs to be re-established by 'accountability' as the educational institution and 'school capacity building' away from the past frame.

• International Commerce and Information Review
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• v.15 no.3
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• pp.41-62
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• 2013

This paper, the accumulation of foreign exchange reserves in the financial systems of emerging markets mid-to long-term impact on how investigated. The accumulation of foreign exchange reserves in emerging markets is a highly effective means to prevent the recurrence of another financial crisis as well as to minimizing risks of financial crisis. By examining the economic effects of excessive accumulation of foreign exchange reserves on factors such as foreign liabilities, domestic consumption, domestic investment and economic growth from a mid-to long-term perspective, it reduced domestic consumption, but on the other hand, led to the expansion of the trade-related industries based on increase of exports. Although China implements a policy to substantially increase domestic investment, other emerging market countries have stagnant domestic investment activities due to excessive accumulation of foreign exchange reserves. Such fact signifies that excessive accumulation of foreign exchange reserves increases potential risks by depressing the mid-to long-term economic growth through the scale down of trade-related industries.