• Journal of Service Research and Studies
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• v.12 no.1
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• pp.49-68
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• 2022

This study was conducted to design a financial system for the sustainable life of mankind. Human society faces a constant crisis and leads a life while overcoming it. The polarization is intensifying in the process of overcoming the economic crisis or crisis caused by the virus. In a society adopting the capitalist economic system, it is a common phenomenon that polarization intensifies with the passage of time, but since the intensification of polarization can destroy human society as a community, active countermeasures are required. The purpose of this study was to prevent the deepening of polarization by redesigning important financial-related systems from the perspective of human life and maintenance of human society. Through the history of mankind, monetary and financial systems related to sustainable society have been analyzed, and a financial system model that is ideal for the modern and future society and is sustainable in the long term has been derived. The conditions for a long-term sustainable financial system should be a model that can solve the problems of the current system, such as deepening polarization, and a model that is faithful to the characteristics of the modern economic society and the essence of sustainable life. And it can be sustainable only if it is based on the common principles of human society. It should be a model that guarantees core values such as growth and equality that human society demands. After analyzing the problems of the current economic system and analyzing the conditions required for the new system, the basic axioms that the new financial system should be based on were presented, and a desirable model was derived based on this. The structure of the derived model and the specific operation model were presented. In the future, follow-up studies are needed to concrete this model.

• Proceedings of the Korea Association of Information Systems Conference
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• 2000.11a
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• pp.25-35
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• 2000

A huge amount of financial information in large databases makes performance comparisons among organizations difficult or at least very time-consuming. This paper investigates whether neural networks in the form of self-organizing maps can be effectively employed to perform a competitive benchmarking in large databases. By using self-organizing maps, we expect to overcome problems associated with finding appropriate underlying distributions and functional forms of underlying data. The method also offers a way of visualizing the results. The database in this study consists of annual financial reports of 100 biggest Korean companies over the years 1998, 1999, and 2000.

• Management Science and Financial Engineering
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• v.3 no.1
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• pp.75-88
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• 1997

Tabu search (TS) has been successfully applied for solving many complex combinatorial optimization problems in the areas of operations research and production control. However, TS is for single-objective problems in its present form. In this article, a TS-based heuristic is developed to determine Pareto-efficient solutions to a multi-objective combinatorial optimization problem. The developed algorithm is then applied to the discrete optimal design problem in statistics to demonstrate its usefulness.

• International Journal of Fuzzy Logic and Intelligent Systems
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• v.13 no.1
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• pp.19-30
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• 2013

Recently, the constrained index tracking problem, in which the task of trading a set of stocks is performed so as to closely follow an index value under some constraints, has often been considered as an important application domain for control theory. Because this problem can be conveniently viewed and formulated as an optimal decision-making problem in a highly uncertain and stochastic environment, approaches based on stochastic optimal control methods are particularly pertinent. Since stochastic optimal control problems cannot be solved exactly except in very simple cases, approximations are required in most practical problems to obtain good suboptimal policies. In this paper, we present a procedure for finding a suboptimal solution to the constrained index tracking problem based on approximate dynamic programming. Illustrative simulation results show that this procedure works well when applied to a set of real financial market data.

• Korean System Dynamics Review
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• v.13 no.4
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• pp.5-31
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• 2012

This paper aims at investigating the dynamics between aging population and local finance. In recent years, the aging rate has been accelerating the pace. The trend implies that Korea is moving towards the aging society, presumably, with unprecedented speed in the world. Aging society's biggest problems are centered around the explosive growth of the financial needs. In particular, these problems are apt to appear more seriously in local governments, as most of them are confronted with high level of aging population and poor financial bases. Firstly, it analyzes how the population structure in the local government impacts local finance, income and expenditure. Based upon in-depth literature reviews, this study examines variables related to aging population and local fiance. Secondly, it focuses on a series of positive and negative feedback loops which would reveal the essence of the mutual interaction structure between aging population and local governments' fiscal behaviors.

• Journal of the Korean Home Economics Association
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• v.40 no.10
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• pp.17-31
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• 2002

The number of single family is increasing because of individualism, resistance toward patriarchal family system, forced independence of women, absence of proper spouse and divorce rate, and aging. This study is to find out welfare needs in order to make family welfare measures toward continuously increasing single family. Data analysis has been tried to accomplish the purpose of study by in-depth interview, and structural questions were asked according to characteristics and degree of communication. Difficulties that single testers go through are social prejudice, financial problems, emotional and psychological factor, reduction of social network, and health. Lack of publicity, limit of welfare beneficiary, lack of service are suggested as problems, and what needs to be changed are formation of self-reliance meeting, financial independence, preparation of health and one's declining years.

• The Journal of Information Systems
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• v.20 no.1
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• pp.107-126
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• 2011

Model-based decision support system (DSS) has acted as a crucial role in strengthening the business competitiveness by providing a way of modeling and solving real-world decision problems in a quantitative and scientific manner. It is even more important for trading OTC derivatives, which requires extensive financial-engineering expertise while actively reacting to the continuously changing financial market. This paper proposes a flexible model-based DSS architecture that can support user-friendly interface for executing and analyzing the models and can adapt to the changes of financial market seamlessly. For user-friendliness, we implement the user-interfaces (UIs) using Microsoft Excel, a very widely used spreadsheet program for its great generality and extensibility. Users can utilize the analysis results of DSS or reprocess them for their special needs through the UIs in the form of familiar spreadsheets easily. For adaptiveness to the markets, the proposed architecture is constructed based on the object-oriented concepts, which enables such changes as release of a new financial product can be updated into the system without any delay at the lowest cost. We investigate the practical benefits and limitations of the proposed architecture by a case study on the construction of Model-based Trading Support System (MTSS), performed by a commercial bank in Korea.

• Journal of Internet Computing and Services
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• v.13 no.3
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• pp.127-137
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• 2012

With the spread of the new technologies like a smart phone, a smart pad, N-Screen service for financial transaction quickly became commonplace through the Internet. Although it has been developed related technologies and policies since the N-Screen has been provided in Korea, infrastructure for financial services is still lacking. It also has many potential problems including phishing or malware attacks, privacy information exposure & breaches, etc. This work suggests the financial security framework in the side of information protection through threat vulnerability analysis. Further, we examine the possibility of effective application methods based on political technical design.

• Journal of Agricultural Extension & Community Development
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• v.13 no.2
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• pp.329-340
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• 2006

This study was carried out to analyze on the economic life and financial state of rural inhabitants in case study 4 villages by questionnaire interview. To analyze the economic life of rural inhabitants, the data were collected from 191households and the SPSSWIN / ver12.0 was used for analyzing them. The major findings of this study are as follows; 1) Most of them earned living expenditure themselves, over 15% inhabitants lived with their children supports. 2) Over 70% of them couldn't save at all, over 40% of them had debts except inhabitants in plain area. 3) The financial condition of rural inhabitants is very unstable, for the small and irregular agricultural income. Moreover, the ratio of national pensioner and payer are very low. 4) The present economic life compared with 10year ago and future prospect are pessimistic. And the elder household have much financial problems, they live in poor and inferior surroundings. According to the results of research, the policy on support and assistance for economic life of rural inhabitants must be enlarged and enforced, and the financial program and education for them must be carried out nationwide and systematically.

• Health Policy and Management
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• v.8 no.1
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• pp.135-154
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• 1998

In Korea, the institutional reform for the national medical insurance system is in process. Eventually, three kinds of the national medical insurance system, i.e., medical insurance program for the industrial workers, the govemment employees and the private school teachers, and the self-employeds, would be merged into an unifed system. In this study, I analyzed the annual trends of the finance in the medical insurance system in Korea, in which I found the financial instability especially in the medical insurance program for the self-employeds. The regression analysis was carried out to forecast the accumulated reserve at the end of this year for the medical insurance program for the self-employeds. I also analyzed the economic effect of the merge of the medical insurance program for the self-employeds by using the case of Japan and Korea. I found that the medical insurance for the self-employeds is expected to have financial deficit at the end of the year 1998 after the merge. In onclusion, it seems to be quite difficult to solve the financial instability in the medical insurance program for the self-employeds after it would be merged. That means that there would be a lot of problems on the way to the merge.