• Journal of Korean Society for Quality Management
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• v.51 no.4
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• pp.481-496
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• 2023

Purpose: The main theme of this study is to derive a profit curve by a cubic cost function for nonlinear CVP analysis. According to the analytical approach to derive a nonlinear profit function in this study, it is possible with only the existing cost structure to calculate the profit maximization and downtime point sales unlike the classical CVP analysis. Furthermore, the profit curve by the mathematical model of this study could serve as a tool to quantify the qualitative evaluation of each stage of the industry life cycle. Methods: This study followed the mathematical approach from the cubic cost function model of microeconomics, and using real data of the Bank of Korea Results: The nonlinear profit function suggested by this study is as follows; ${\pi}(x)=-a\left(x-\frac{f}{1-v}\right)^3+(1-v)x-k$ where $a=\frac{1}{3}v\left(\frac{(1-v)}{f}\right)^2,k=f-a\left(1-\frac{f}{1-v \right)^3$ Conclusion: The process and results of this study would be able to contribute not only in practice of nonlinear CVP analysis required in the management accounting or financial management, but also in cost theory of microeconomics. Also, since the life cycle of all industries in Korea was verified to the growth or mature stage, decision makers should pay careful attention to determining life cycle stages and consider the profit curve by the average variable cost ratio over multi periods.

• Journal of the Korea Society of Computer and Information
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• v.26 no.3
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• pp.155-165
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• 2021

The measures to extend local education autonomy are as follows: First, it is necessary to correct the confusion of the legal system of the local education autonomy system. For this, Article 12, Paragraph 2 and 4 of the 「Special Act on Local Autonomy and Decentralization, and Restructuring of Local Administrative Systems」 which state that "The State shall endeavor to consolidate systems for autonomy in education and local government" and "The implementation of autonomy in education and the autonomous police system shall be prescribed separately by Acts" should be deleted. Second, it is necessary to clarify unnecessary legal matters and regulatory measures for unification at the national level and to proactively consider the introduction of the legal trust system, in which education affairs are designated as local governments' own work and the state carries out specific affairs. The decentralization of local education finance is a key factor for the development of local education autonomy, and it requires the transfer of authority and resources to the region, and the enhancement of local autonomy and corresponding responsibility. First, the ratio of special grants must be adjusted further (from 3% to 2%) or the ratio of national policy projects must be lowered. Second, the provision that requires a consultation with a mayor/governor when making a budget covered by transfers from general accounts should be deleted. Third, it is necessary to remove the elements that limit the authority of city and provincial councils. Fourth, it is necessary to integrate the national education tax and the local education tax to create the education autonomy tax (tentative name) for only one independent purpose. Fifth, it is necessary to strengthen the distribution of the total amount of grants and abolish the settlement regulations for the measurement items of standard financial demand. Sixth is the expansion of the participation of stakeholders and experts in the grant distribution process. Seventh, it is necessary to establish a long-term employment system by designating the education finance field as a special field. Eight is the expansion of cooperative governance.

• Weed & Turfgrass Science
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• v.2 no.1
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• pp.95-99
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• 2013

To investigate the actual condition of production and management of sod, a questionnaire was ask to 57 farmers in major cultivated areas of turf sod in Korea in 2010 and 2011. The results of the turfgrass management situation analysis showed a mixed farming where the ratio of the principal work and the side work progress similarly, and for the landholding type depending on the management scale, the rental ratio was high for a scale over 0.5 ha. Sod production farmers has high-profile in new varieties of turfgrass, integrated management of the fertilization and soil or disease and insect pest however the future of the turfgrass industry does not seem optimistic due to the problems such as market stability or scarcity of worker. Obtaining of information on culture methods depended neighbor's experience (81.8%). Concerning the varieties preference analysis, the 32.1% of farmer answered that the reproductive rate was a key factor for the new variety. Sod production farmers want to receive financial support (28.1%), improvement of distribution structure of sod (26.6%), and spread of good variety turfgrass (23.4%).

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.8 no.1
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• pp.171-181
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• 2013

The relationship about corporations' dividend policy and foreigners' share have been studied on the various views. However, there have barely been the studies about the relationships between the two variables according to hot and cold markets in Korea. In this point, this study attempts to find the differences of the tendency of foreigners' investment with financial variables and the relationship between foreigners' share and corporations' dividend policy according to hot and cold markets. For the analysis, it selected the 318 manufacturing corporations, which paid dividends in 2008 (cold market) and 2010(hot market). The results are classified into two types. 1) There are the difference, and 2) There are no differences of the relationships among the variables according to the two markets. First of all, The relationships between 1) foreigners' share and dividend 2) between foreigners' share and market value (Tobin's Q) and corporations' debt (Debt Ratio) were statistically significant in the both (hot and cold) markets. As showing the differences according to hot and cold markets, cash flow and foreigners' share showed the statistically significant relationships in 2010 (hot market), not in 2008 (cold market). One of the remarkable results is that most of relationships among variables, except the relationship between foreigners' share and dividend, are more strong in hot market than in cold market.

• Journal of the military operations research society of Korea
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• v.37 no.1
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• pp.49-70
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• 2011

This paper re-evaluated the research on the accounting information's effectiveness in military construction contracts, questioning the former research results on the central army's construction contract that was under the Qualification Assessment System, especially concerning the relations between the accounting information and the bidding ratios as well as the relations between the bidding rates and the defect rates, which targeted between 1 to 10 billions civil engineering, construction, electricity, telecommunication, and environment work types. Unlike the previous results, the relationship between the accounting information and the bidding rates was shown to be considerably limited that the bidding ratio could not be identified through the accounting information, while it could discern the relations with the defect rates. Furthermore, the proven results did not support the hypothesis that the differences in bidding rates could affect the defect ratio. However, through the prediction model of bidding and defect ratios, we could identity the accounting variables that influenced the ratios. Additionally through the results regarding the non-financial indexes in the Pre-Qualification items, the weight on these indexes could be adjusted. In conclusion, the research results has given us new understanding of the problems in the Qualification Assessment System which accounts for the majority of the current military construction contracts and provide validity on the government's expanded implementation of the Lowest Price Award System.

• Journal of Korean Academy of Nursing
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• v.4 no.1
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• pp.64-80
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• 1974

The social understanding of the rehabilitation and welfare work for the handicapped children is nearly devoid in Korea. Especially the medical rehabilitation or nursing for them is left ign. ored as well as the literature preferential to this study is wanted. For the purpose of conducting the study of this thesis Sam Yook Children's Rehabilitation Center, Inc. and Crippled Children's Center, Yonsei University Medical center sampled out; covering three months from Aug. 1 to Oct. 30, 1973, the problems of children's rehabilitation, the characteristics of the children, the medical rehabilitation, nursing, education, and vocational rehabilitation were interviewed and widely grasped. This thesis aimed at developing the rehabilitation, the professional nursing and especially aimed at contributing to the improvement of welfare for the handicapped by analysing, observing the result of this study. The result is as follows: 1. Sam Yook Children's Rehabilitation Center, Inc. has, since its establishment, contributed to the advancement of the crippled children and its purpose consists in implementing services, medical rehabilitation, nursing, education and vocational training. Crippled Children's Center, Yonsei University Medical Center is, being based on Christianity, aiming at the medical treatment and education for the crippled children. 2. All of the children admitted in the children's rehabilitation centers are the crippled children. The ratio of boys io girls is three to two. Boys are more than girls. Orphan formed 55.2 per sent of them. About 60 per cent of them is receiving medical attention free of charge. But there is no orphan in Crippled Children's Center, Yonsei University Medical Center. 3. 15.7 per cent of them have received the previous medical attention before their admitting in the centers; in Sam Yook Children's Rehabilitation Center 8.6 percent, Crippled Children's Center, Yonsei University Medical Center 50 percent; there is remarkable difference between the two. 4. On the standpoint of period of being in the centers, the children who have been over three years in Sam Yook Children's Rehabilitation Center formed 48.7 per cent; in Crippled Children's Center, Yonsei University Medical Center 2.6 percent; there is also considerable difference between the two; they couldn't discharge from the centers owing to the economic conditions and being orphan. 5. Among the diagnosis of the crippled children, poliomyelitis formed highest 51.7 percent of them ; cerebral palsy formed 30 percent secondly in order. Environmental factors (67.8 percent formed about three times of congenital factors (23.7 percent). 6. The children who are capable of doing independently activity of daily living formed 87.9 percent; 73.2 percent can walk about 300 m by wearing brace and so on. The ratio of wearing brace or leg prosthesis formed 47.4 per cent: crutch 44.3 per cent. The medical rehabilitation service and education for the crippled, are comparatively well carried out. But it is desired to improve and cultivate the vocational training, vocational guidance and special nursing to the insufficiency of their implementation. In the tendency that the rehabilitation and welfare for the handicapped are today emphasized, International Handicapped Rehabilitation Association, declaring that 1970s are the decade of rehabilitation, urged to improve positively the policy of rehabilitation and welfare for the handicapped. But here in korea the handicapped, being the object of social prejudice, ignorance, disdain lives in obscurity. Therefore the government or the community should draw up countermeasure on social under-standing, financial support, and rehabilitation services for the handicapped as well as should endeavor to make them participate in social activities as the productive total- person though they are physically imperfect.

• KDI Journal of Economic Policy
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• v.33 no.3
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• pp.33-55
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• 2011

Market concentration in the Korean banking industry has markedly increased since the financial crisis of 1997-1998 because of M&As, P&As, and consolidation of banks. With this change, there has been a growing concern over market power in the Korean banking sector. We examine the effects of market concentration on bank efficiency and competition for the period of 1992-2006. Three different indicators of bank inefficiency are used in this study, including X-inefficiency that is derived from the directional technology distance function. The level of competition is measured by both the H-statistic of the Panzar-Rosse model and the level of the net interest margin and its standard deviation. Empirical results indicate that market concentration has not improved bank efficiency through scale economies or scope economies. Instead, recent mergers, acquisitions and consolidation of banks resulted in an increase in inefficiency measured by the three different indicators: X-inefficiency, labor inefficiency and asset inefficiency. While an increase in market share of individual banks improved bank efficiency, an increase in the overall market concentration ratio resulted in lower efficiency. Our study also finds that the Korean banking sector has been monopolistically competitive throughout the sample period except for the crisis period according to the H-statistic. Although an increase in market concentration ratio has not changed the overall level of bank competition, it has a positive significant effect on the level of the average interest margin.

• Journal of Korea Society of Industrial Information Systems
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• v.17 no.2
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• pp.81-94
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• 2012

On December 11, 2001, China joined the WTO and became one of the member countries and the Chinese financial markets had to be open in 5 years. So, the Chinese government transformed national commercial banks into joint-stock banks. The purpose of this paper is to investigate the validity of this decision by the Chinese government. In order to measure the efficiency of banks, the directional distance function (DDF) methodology is used, which analyzes whether a bad output exists in the outputs. In the empirical analysis, the number of staffs, the fixed assets, and the equity capital are used as inputs, while the loans and the non-performing loans ratio are used as a good output and a bad output, respectively. The non-performing loans ratio is included in output since it could affect the efficiency of banks. If it isn't considered in the analysis, a distortion might occur in analyzing the efficiency of banks. The results show that the efficiency of the major commercial banks was improved, and that the efficiency of joint-stocks banks was higher for 2002-2003 while the efficiency of national commercial banks was higher for 2004-2006. It was due mainly to the foreign exchanges reserve funds injected into national commercial banks by the Chinese Ministry of Finance, and as a result bad assets were eliminated.

• Journal of agricultural medicine and community health
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• v.9 no.1
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• pp.46-55
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• 1984

The socio-psychiatric study and personality analysis by Minnesota Multiphasic Personality Inventory on attempted suicides with drug intoxication in Seonsan-Gun and Cheongdo-Gun of Kyoungsang buk-Do was attempted to identify overall picture of attempted suicides and to detect some characteristics of personality. The total of 93 suicide attempted cases which were brought to the local clinics for the past 3 years from February, 1981 to February,1984 were sampled among them. The socio-psychiatric study and MMPI were performed with 45 attempters possible to be interviewed. The personalities of a group which answered "Still have the desire occasionally" or "Don't know about the present attitude toward suicide was compared with those of the other group who answered "Will not do it agagin". The results were as follows; 1) The sex ratio of the total attempters (93 cases) were 138.5. The highest rate by age group was found in the 3rd decade to be 27 cases. On the other hand, the sex ratio of interviewed cases were 136.8 and the highest rate was found in the age group of 50-59. 2) For the common characteristics of majority other than sex, 55.7% of cases were graduated primary school, and 62.2% were engaged in agriculture. 3) Except the fact that more of the attempted suicides happened during summer, there were no seasonal variation among other seasons. 4) The places selected for the attempted suicides were the houses in majority of cases (98%). Most of cases (53.3%) were found immediately after the attempt and 24.4% within one hour. For the poison taken, 86.7 took a sort of herbicides or insecticides, 55.6% were admitted to local clinics for only one day and 20% for two days. 5) The most common precipitating factors of the attempted suicides were family trouble and financial poverty. 6) The psychodynamic motives of the attempters were impulsive hostility(35.6%), abandonment(33.3%), guilt feeling (11.1%), manipulation and attention seeking (8.9%) and others. 7) In regard to their present attitude toward suicide, 29 cases (64.4%) expressed that they would never do such an act again, 37.8% of cases expressed that they really wanted to die at the time when they attempted. 8) The Psychopathic deviate, Paranoia, Depression, Schizophrenia scores were significantly higher in the attempters group who answered "Don't know" or "Possibly" for the question of "Will you attempt suicide again?" Than the group who answered" will not do it again".

• KDI Journal of Economic Policy
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• v.37 no.sup
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• pp.87-121
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• 2015

To attract more FDI inflows, the Korean government has designated several special economic zones (SEZs), offering various advantages and support to the FDI. There is, however, a shared acknowledgement that those efforts have gained little reward. In this regard, this paper empirically analyzes company-level performances of labor productivity, operating profit ratio, propensity to invest and innovate, etc. and then conducts regression analysis and PSM analysis to see whether these performances are meaningfully different between foreign-invested firm and domestic firm and between foreign-invested firms. The main findings of this paper are as follows. First, in the aspects of labor productivity and operating profit ratio, no empirical evidence was found to support the hypothesis that foreign-invested firm outperforms domestic firm in efficiency and profitability, Second, in the aspects of propensity to invest, foreign-invested firms in foreign investment zones outperformed domestic firms. Third, in the aspect of R&D investment, overall, foreign-invested firms showed a stronger propensity to invest than domestic firms, but there is no empirical evidence that high propensity to invest was driven by the policy on special economic zones. In the aspect of investment in educational training, empirical evidences were found that the role of foreign-invested firms outside the special zones turned out to be the strongest and that among firms inside special zones, it was those in the free economic zone that outperformed domestic firms. Lastly, foreign-invested firms showed a stronger propensity to employ than domestic firms, but there is no empirical evidence that high propensity to employ was driven by the policy on special economic zones.