• 산업공학
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• 제10권1호
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• pp.119-134
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• 1997

The management of blood inventory is very important within the medical care system. The efficient management of blood supplies and demands for transfusions is of great economic and social importance to both hospitals and patients. For any blood type, there is a complex interaction among the optimal inventory level, daily demand level, daily supply level, transfusion to crossmatch ratio, crossmatch release period, issuing policy and the age of arriving units that determine the shortage and outdate rate. In this paper, we develop an efficient decision rule for blood inventory management in a hospital blood bank which can support efficient hospital blood inventory management using simulation. The primary use of the efficient decision rule will be to establish minimum cost function which consists of inventory levels, period in inventory, outdate and shortage rate for whole blood and various component inventories for a hospital blood bank or a transfusion service. If the administrator compute the mean daily demand for each blood type, the mean daily supply for each blood type, the length of the crossmatch release period and the average transfusion to crossmatch ratio, then it is possible to apply the efficient decision rule to compute the optimal inventory level, inventory period, outdate and shortage rate. This rule can also be used as a decision support system that allows the blood bank administrator to do sensitivity analysis related to controllable blood inventory parameters.

• 통상정보연구
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• 제14권2호
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• pp.389-409
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• 2012

중개무역의 활성화와 기업의 해외현지법인의 증가로 인한 스위치선하증권의 사용이 빈번해지고 있으며 이와 더불어 이것의 불법적인 발행으로 인한 분쟁도 종종 발생하고 있다. 이러한 분쟁에 대해서는 몇 가지 중요한 판례가 있지만 이에 대한 연구는 전무하다. 따라서 본 연구에서는 스위치선하증권의 불법적 발행관행을 관련 판례를 통하여 조사하고 관련 당사자의 대책을 모색하고자 한다. 스위치선하증권에서는 원선하증권의 선적인, 수하인, 선적항. 하역항, 선적일 등이 변경 또는, 선적인에게 불리한 부기가 제거되거나 선하증권이 분할 또는 통합 발행된다. 여기서 운송인이 원선하증권을 회수하지 않은 상태에서 스위치선하증권을 발행하거나 선적일자, 선적항 또는 하역항을 허위로 기재하거나 불리한 부기가 삭제된 스위치선하증권을 발행하는 것은 불법적인 것으로 볼 수 있다. 스위치선하증권의 불법적 발행은 선적인과 은행 등 무역거래 당사자에게 위험 요인이 된다. 즉 선적인은 대금을 회수하지 못하였음에도 불구하고, 스위치선하증권에 의해서 화물이 제3자에게 인도되면 대금을 회수하지 못하여 손실이 발생한다. 화물의 담보권을 가지고 있는 신용장 개설은행 또는 매입은 행도 스위치선하증권의 불법적인 발행에 따라 그들의 담보권이 침해된다. 대부분의 경우 운송인은 중개무역상과 거래관계에 따라 어쩔 수 없이 원선하증권을 회수하지 않은 상태에서 스위치선하증권을 발행하고 있다. 하나의 화물에 대하여 두 세트 이상의 선하증권이 존재하는 것은 운송인에게 대단히 위험한 것이다.

• 무역상무연구
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• 제16권
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• pp.35-58
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• 2001

The letter of credit is quintessentially international. In the absence of international legal system, a private system based on banking practices has evolved, commanding the adherence of the international letter of credit community and providing the foundation of th reputation of this instrument. To maintain this international system, it is vital that international standard banking practice should not be subject to local interpretations that misconstrue or distort it. The UCP is a formulation of international standard banking practice. It is neither positive law nor a "contract term" in any traditional sense and its interpretation must be consonant with its character as a living repositary of international understanding in this field. As a result, the interpretation and application of specific articles of the UCP must be consistent with its evolving character and history and with the principles upon which sound letter of credit practice is predicated. This study, especially, focuses on article 13 of the UCP500 and 95UCC 5-108. Both articles introduce a standard of document examination to be used by banks to determine whether they comply facially with the terms of the credit. While, in the UCP, this standard is called international standard banking practices, in the UCC, this standard is called standard practices. I think that both standards are not same. Thus, first, this study look for categories of both standards and scope of application. the second subject is how can issuing bank act in the face of non-documentary condtion under this standard of document examination. Third is correlation between the principle of Strice Compliance and the standard.

• 한국시뮬레이션학회논문지
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• 제5권1호
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• pp.13-27
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• 1996

The management of blood inventory is very important within the medical care system. The efficient management of blood supplies and demands for transfusion is of great economic and social importance to both hospitals and patients. Fro any blood type, there is a complex interaction among the optimal inventory level, daily demand level , daily supply level, transfusion to crossmatch ratio, crossmatch release period, issuing policy and the age of arriving units that determine the shortage and outdate rate. In this paper, we develop an efficient decision rule for blood inventory management in a hospital blood bank which can support efficient hospital blood inventory management using simulation, The primary use of the efficient decision rule will be to establish minimum cost function which consists of inventory levels , period in inventory, outdate and shortage rate for whole blood and various component inventories for a hospital blood bank or a transfusion service, If the adminstrator compute the mean daily demand for each blood type, the mean daily supply for each blood type, the length of the crossmatch release period and the average transfusion to crossmatch ratio , then it is possible to apply the efficient decision rule to compute the optimal inventory level, inventory period , outdate and shortage rate. This rule can also be used as a decision support system that allows the blood bank adminstrator to do sensitivity analysis related to controlled blood inventory parameters.

• 한국중재학회지:중재연구
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• 제16권2호
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• pp.213-238
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• 2006

Deferred payment letter of credit is the L/C that makes the issuing bank to pay a beneficiary at maturity stipulated in the credit. In this deferred payment letter of credit transaction, is it possible that a confirming or nominating bank payor negotiate before maturity? and the confirming or nominating bank have legal protection when paid or negotiated before maturity? These problems are raised in argument. By the way, Korea, Switzerland, Germany, and Italy are positive on the above question, but France, United Kingdom, and Singapore are negative. Therefore, when using deferred payment letter of credit, it is required to keep in mind that the understanding of maturity stipulated in the credit is different among countries, legal principles of each nations, and researchers. And other problems are raised also as follows; the application of Fraud Rule and principle of independence and abstraction as nature of credit, when to pay credit amount to beneficiary, and refusal of payment due to poor quality. Finally, it is required to use deferred payment letter of credit, after full understanding of deferred payment letter of credit pointed out in this paper.

• 무역상무연구
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• 제39권
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• pp.143-175
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• 2008

The documentary letter of credit is the most preferred and frequently used method in International Payment System in Korea, as it has less possibility of occurring credit risks in export than any other payment system. That's because the exporter can get payment from the issuing bank(confirming bank) by delivering the goods and presenting documents following the required procedure under the letter of credit, as the payment is affirmed by the issuing bank(including the confirming bank in case of the confirmed letter of credit) regardless of the buyer's payment. However, the pattern of payment methods used in international trade of Korea is changing dramatically like the importance of the credit is decreasing continuously among the payment methods while the remittance is increasing. The increase of remittance has a positive aspect that International Payment System are changing into those of advanced countries, but the decrease of the credit also has a negative aspect that the exporter might have a greater credit risks. Therefore, we need a systematic device to deal with this. Exporters in Korea usually have used the export credit insurance to deal with the credit risks However, the export credit insurance also have a limitation as the policy finance due to the limitation based on the credit status of the business and the limitation of acceptance from the lack of financial resources of the government, etc. Korea, which is the 11th export power in the world, has a basic limitation to deal with the credit risks by depending on the export credit insurance only. So, in this thesis, I have studied on the international factoring, forfaiting, which are advanced export finances and widely used in advanced countries, as substitutes to deal with the credit risks. the international factoring is an trade financing in which a factor offers full services such as credit cover, offering prepayment, collection, account receivables, management, etc, instead of the exporter on the account receivables occurred by the exporter's delivering goods to the importer. This international factoring has a high possibility of using as a means to deal with the credit risks, because it offers prepayment without recourse. the forfaiting is another export financing in which a forfaiter purchases the draft, the promissory note and other negotiable instruments issued from the international trade, with fixed interest rate without recourse from the exporter or previous holder. By using this method, they can avoid foreign exchange risks, contingency risks as well as credit risks, as the conveyances like the promissory note, etc are issued with the note warranty so-called 'per aval' in business practice. These trade financing are good substitutes to deal with the credit risks in export, but they are not widely used in Korea. Though it can be explained with various reasons, the common reasons are the lack of understanding on the use of advanced export finance, the lack of experts to manage the advanced trade finance, the conservative way of thinking of domestic organizations related to trade financing, the lack of organizations supporting the trade financing, etc.

• Journal of Preventive Medicine and Public Health
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• 제21권1호
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• pp.195-206
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• 1988

Two major issues of the blood bank management are quality assurance and inventory control. Recently, in Korea blood donation has gained popularity increasingly to allow considerable improvement of the quality assurance with respect to blood collection, transportation, storage, component preparation skills and hematological tests. Nevertheless the inventory control, the other issue of blood bank management, has been neglected so far. For the supply of blood by donation barely meets the demand, the blood bank policy on the inventory control has been 'the more the better.' The shortage itself by no means unnecessitate inventory control. In fact, in spite of shortage, no small amount of blood is outdated. The efficient blood inventory control makes it possible to economize the blood usage in the practice of state-of-the-art medical care. For the efficient blood inventory control in Korean hospitals, this tudy is to develop formulae forecasting the standard blood inventory level and suggest a set of policies improving the blood inventory control. For this study informations of $A^+$ whole bloods and packed cells inventory control were collected from a University Hospital and the Central Blood Bank of the Korean Red Cross. Using this informations, 1,461 daily blood inventory records were formulated.48 varieties of blood inventory control environment were identified on the basis of selected combinations of 4 inventory control variables-crossmatch, transfusion, inhospital donation and age of bloods from external supply. In order to decide the optimal blood inventory level for each environment, simulation models were designed to calculate the measures of performance of each environment. After the decision of 48 optimal blood inventory levels, stepwise multiple regression analysis was started where the independent variables were 4 inventory control variables and the dependent variable was optimal inventory level of each environment. Finally the standard blood inventory level decision rule was developed using the backward elimination procedure to select the best regression equation. And the effective alternatives of the issuing policy and crossmatch release period were suggested according to the measures of performance under the condition of the standard blood inventory level. The results of this study' were as follows ; 1. The formulae to calculate the standard blood inventory level($S^*$)was $S^*=2.8617X(d)^{0.9342}$ where d is the mean daily crossmatch(demand) for a blood type. 2. The measures of performace - outdate rate, average period of storage, mean age of transfused bloods, and mean daily available inventory level - were improved after maintenance of the standard inventory level in comparison with the present system. 3. Issuing policy of First In-First Out(FIFO) decreased the outdate rate, while Last In-First Out(LIFO) decreased the mean age of transfused bloods. The decrease of the crossmatch release period reduced the outdate rate and the mean age of transfused bloods.

• 토지주택연구
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• 제3권4호
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• pp.333-341
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• 2012

본 연구는 토지비축사업이 재원조성에서 LH 채권에 의존적인 현행 구조로는 사업의 지속성을 갖기 힘들기 때문에 근본적 개선방안이 필요하다는 인식에서 출발하였다. 토지은행사업의 특성상 사업초기에는 비축물량의 확보가 우선시되므로 자금투입만 집중적으로 이루어지고 회수는 장기에 걸쳐 일어난다는 점을 고려하고, 또한 토지은행 운영주체인 LH의 재무여건이 악화되어 토지은행 사업초기의 필요자금을 충분히 조달할 여력이 안된다는 점을 고려할 때, 현행 LH 적립금과 채권발행에만 의존하는 재원조달구조는 지속성에 한계가 있다. 따라서 사업초기와 정착단계에서의 특성을 감안하여 재원조달수단은 차별적으로 고려되어야 할 것이다. 사업초기에는 정부재정을 통한 지원이 불가피한데, 토지은행을 LH에 설치한 취지를 살려 직접적인 지원보다는 한시적 보증 등 간접적인 지원이 바람직할 것이다. 간접적인 재정지원방식으로는 별도의 토지은행채권을 도입하는 방안을 제시하였다. 이를 위해서는 공공토지비축법 개정을 통해 '토지은행채권 발행' 조항을 신설하되, 사업초기에는 자체적인 채권상환능력이나 담보력을 갖고 있지 못하므로 '한시적인 정부보증' 조항을 동시에 신설할 필요가 있다. 이에 부가하여, 토지은행 구분계리방식의 변경도 필요하다. LH 고유계정과는 독립적으로 토지은행계정에서 별도의 채권을 발행할 경우 토지은행계정은 LH 고유계정과 명확히 구분될 필요가 있으며, 공기업 준정부기관 회계사무규칙을 개정하여 토지은행계정을 국가재정법상의 기금에 준하여 통합재무제표 작성대상에서 제외토록 함으로써 회계처리지침 변경의 근거를 명확히 해둘 필요가 있다.

• 무역상무연구
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• 제70권
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• pp.1-20
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• 2016

This study is to find the accurate interpretations for the UCP600 by integrating, ISBP745, Official Opinions of ICC Banking Commission and some Case Laws suggesting the reasonable implication for the upcoming UCP. Major results analyzed by this study are as follows. First, The preclusion rule, UCP600 Article 16(c), is closely connected with the doctrine of documentary cure, so the banks requirement of Single Notice must state all the discrepancies of the documents presented. Exceptionally if the cured documents by the presenter are happened to be inconsistent the initial notice the bank can require the presenter to re-tender within the expiry date or the last day for presentation. Secondly, The Issuing Bank can utilize the right of seeking a waiver of documentary discrepancies from the applicant with the time limit of 5 banking days. If the bank wants to require an applicant to report discrepancies promptly, he may include a provision in the reimbursement engagement limiting the time limit within which the applicant must give notice of facial discrepancies. Thirdly, if a credit contains a non-documentary condition, banks will deem such condition as not states and will disregard it. According to the principle of private autonony if a credit contains a non-documentary condition to be consistent with by the parties concerned in a credit the non-documentary condition can be treated, as an effective condition itself. Fourthly, according to the Korean Supreme Court's decision, negotiation includes the method of crediting the credit amount and then transfers such funds into a special account and controls the account. Finally, UCP600 Article 33 states a bank has no obligation to accept a presentation outside of its banking hours. However, there is no rule in UCP600 in regard to a presentation after the close of business. Hopefully the upcoming UCP has to stipulates a sort of definite article to determine such ambiguous.

• 무역상무연구
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• 제44권
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• pp.85-107
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• 2009

L/C allows the exporter to have a bank's payment undertaking against shipping documents required by L/C. This means that the exporter can take export proceeds from a L/C issuing bank regardless of importer's payments and therefore the L/C better mitigate importer's credit risk compared to remittance and collections. Recently the use of L/C has been on down trend in line with increasing use of T/T, causing a big change of payment system. This tells that the payment method change in Korea is positive as the change also happens same in developed countries. This however gives more buyer's credit risk to exporters and therefore a systematic solution to this negative effect is required. In Korea, export credit insurance has been widely used to cover the buyer's credit risk. But the export credit insurance is limited because of lack of government's financial support and strict evaluation of buyer and exporter. Now Korea is ranked 10the largest trading country and therefore the exporters shall find another source for credit risk protection elsewhere. And as such this paper suggest International Factoring as a tool for the credit risk protection. The International Factoring gives advantages to the exporter in terms of credit protection and advances by purchasing account receivables on a without recourse basis.