• 통상정보연구
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• 제10권3호
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• pp.333-351
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• 2008

This study shows a comprehensive survey of literatures in international trades in services. It is true that most research works in international trade have been focusing on commodity trades but relatively not many works have been done on international services trade study. This paper discusses a research framework of international services in trades research and suggests some recommendations for future research. The study shows that most of the research works so far have been at initial stage of maturity and as a result not many strategic types of studies are not reported in this field. The main reason is that the research methodology for international trades in services is weak though the opportunity being large. Therefore, future research has to be made to enhance the research methodology study in the international trades in services.

• The Journal of Asian Finance, Economics and Business
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• 제6권2호
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• pp.83-93
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• 2019

This paper provides empirical evidences from the Baltic States on the relationship between technology and trades. In this study, regression and correlation analysis were employed an attempt to reveal the relationship between technology index and net-export coefficient, as well as the relationship between technology index and import coefficient. In this research, technology level was measured by technology index, while trades included of domestic and foreign trades; export and import. The data used for this study were collected from world input-output databases of Estonia, Latvia and Lithuania for the period 2000, 2005, 2010, and 2014. The findings remarked that the relationship between technology and domestic trade was positive and statistically significant. The result of the study implies that the higher was the technology index leads to the higher domestic transaction. Furthermore, relationship between technology and net-export was unpredictable. In year 2000, data from Estonia and Latvia showed that the relationship between variables was negative and in other years of the study, the relationship was positive. However, the relationship between variables was not statistically significant. Lastly, the relationship between technology and import was negative and statistically significant. It implies that the higher was technology index, will have a consequence the smaller was import.

• 자원ㆍ환경경제연구
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• 제22권4호
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• pp.785-815
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• 2013

본 논문은 중력모형을 이용해서 환경규제가 한국의 수출량, 총무역량 및 국제경쟁력에 어떤 영향을 미치는가를 규명해 보는 것이다. 고정효과 추정방법을 이용해서 전 산업, 비 환경오염산업, 16개 환경오염산업을 대상으로 추정하였으며, 자료는 한국과 교역량이 많은 120개 국가를 선정하여 2000년-2010년 사이의 산업패널자료와 환경성과지수(EPI)를 환경규제의 대리변수로 사용하였다. 분석 결과 한국과 교역상대국의 국내총생산량이 한국의 무역을 신장시키는데 큰 영향을 미친 변수라면, 교역상대국의 환경규제는 한국의 오염산업의 수출과 무역량을 감소시키고 국제경쟁력을 떨어뜨리는 무역장벽의 역할을 하는 것으로 나타났다. 그러나 분석기간 동안 비 오염산업에서는 이러한 환경규제효과가 극명하게 나타나지 않았다. 개별 산업에 대한 분석 결과 상당한 비중의 오염산업들이 교역상대국의 환경규제에 영향을 받는 것으로 나타났다. 이런 관점에서 동기간 사이에 한국의 무역에 있어서는 포터가설은 성립하지 않는 것으로 보인다.

• 디지털산업정보학회논문지
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• 제6권2호
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• pp.225-231
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• 2010

This paper proposes the strategy of ladder trades in a symbol pool and simulates a performance of it on the Multicharts' system trading tool. The ladder trading strategy is based on a multi-entry strategy which is efficient for several symbols. A symbol pool is composed of verified stocks comprising KOSPI200 and 17 symbols are selected for an examination which equity is over 10 billion. From July to December in 2009, optimum parameters are searched and the results are delta is 4% and ladder is 5. When those parameters are adopted, the profit is 1,000,000 won as a single trade and the number of trade is 188. The next study is to modify a ladder shape for increasing probability and to find the difference of optimum parameters according to trading months.

• 재무관리연구
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• 제25권4호
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• pp.117-144
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• 2008

This article examines the information transmission process between the KOSPI 200 futures market and its underlying stock market, using the 10-second quote and trade data. The VAR analysis reveals that quote revisions through limit orders in general lead trades through market orders. In addition, the VAR analysis shows that the futures market tends to lead the stock market in terms of quote revisions and trades, even though the other direction is also observable. Even when we focus on the events causing large movements in quote revisions and trades, those lead and lag relations between those markets and between quote revisions and order imbalances are confirmed.

• 한국안전학회지
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• 제16권2호
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• pp.85-90
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• 2001

In construction industries, the problem areas in safety are different to those of manufacturing. For instance, construction safety efforts must strongly emphasize fall prevention, whereas caught-in/ between incidents and electrical shocks are common in manufacturing. This paper reports an analysis of fall incidents that lead to fatalities in 1999 and in 2000. It also provides a safety plan for fall prevention by analyzing the origins of fall incidents by their trades and locations of concern. The findings of this study are expected to contribute toward reducing fall incidents in construction industry.

• 유통과학연구
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• 제14권11호
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• pp.83-90
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• 2016

Purpose - During the last two years, convenient stores (CS) are emerging as one of the most fast-growing retail trades in Korea. The goal of this work is to forecast and to analyze sales at CS using ARIMA-Intervention model (IM) and exponential smoothing method (ESM), together with sales at supermarkets in South Korea. Considering that two retail trades above are homogeneous and comparable in size and purchasing items on off-line distribution channel, individual behavior and characteristic can be detected and also relative superiority of future growth can be forecasted. In particular, the rapid growth of sales at CS is regarded as an everlasting external event, or step intervention, so that IM with season variation can be examined. At the same time, Winters ESM can be investigated as an alternative to seasonal ARIMA-IM, on the assumption that the underlying series shows exponentially decreasing weights over time. In case of sales at supermarkets, the marked intervention could not be found over the underlying periods, so that only Winters ESM is considered. Research Design, Data, and Methodology - The dataset of this research is obtained from Korean Statistical Information Service (1/2010~7/2016) and Survey of Service Trend of Korea Statistics Administration. This work is exploited time series analyses such as IM, ESM and model-fitting statistics by using TSPLOT, TSMODEL, EXSMOOTH, ARIMA and MODELFIT procedures in SPSS 23.0. Results - By applying seasonal ARIMA-Intervention model to sales at CS, the steep and persisting increase can be expected over the next one year. On the other hand, we expect the rate of sales growth of supermarkets to be lagging and tied up constantly in the next 2016 year. Conclusions - Based on 2017 one-year sales forecasts for CS and supermarkets, we can yield the useful information for the development of CS and also for all retail trades. Future study is needed to analyze sales of popular items individually such as tobacco, banana milk, soju and so on and to get segmented results. Furthermore, we can expand sales forecasts to other retail trades such as department stores, hypermarkets, non-store retailing, so that comprehensive diagnostics can be delivered in the future.

• 디지털산업정보학회논문지
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• 제6권1호
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• pp.151-157
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• 2010

This paper proposes the Pyramid strategy which is based on the straddle sell. The Pyamid strategy has multi-entry features with starting date and delta parameters. And It is hedged against a loss by mutual trades and dynamic ripples. This paper analyzes the profit and MDD(maximum draw down) of the Pyramid strategy on system trading. The portfolio tool is used for the experiment which is one of the Multicharts' package. The Multicharts is a good trading system of recent years. For the experiment, three call options and three put options are used at october in 2009. Two parameters are used which are the starting date from first October to twentieth October in 2009 and delta from eight percent to fifty percent. As a result, the profit of composite option is about 3 million won. If the strategy starts before the beginning of option month, investors feel uncomfortable because of a large MDD. If a delta belows 20%, it shows high profit and the ratio of profit and MDD builds up a low value. However a low delta makes frequent trades and results in a loss unless increasing entry levels which mean more amount of investment. This work provides a safer trade system than native option trades. It is important how much levels of multi-entry are acceptable. And an amount of investment with appropriate levels of multi-entry is a subject of a future study.

• 산업경영시스템학회지
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• 제34권4호
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• pp.106-113
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• 2011

Human resource theories of becoming entrepreneurs or self-employed rather than finding employment are compared as applied to fit the occupational data of technological entrepreneurs and technology jobs. The human capital theory posits that technological entrepreneurs are prepared to become a jack-of-all-trades with a variety of fields of education. Hobo theory of entrepreneurship assumes that entrepreneurs have strong taste against concentrating on a few activities, which tend to drive entrepreneurs away from employed jobs depressing their expected income. Another theory assumes that entrepreneurs have some unobserved productive qualities and abilities over employed people. Immigrant entrepreneurs could presumably be pressured out of employment under racial discrimination. Since technology jobs are mostly filled by those educated in the science and technology fields, and they presumably offer great reward to professional concentration, technological entrepreneurs may not benefit from becoming jacks-of-all-trades compared to finding employment in technological jobs income-wise. Asian immigrants in the 2000 US Census data are compared to white immigrants in technological jobs to test alternative human resource theories of entrepreneurship. Using English language ability as a proxy for the variety of education, I find in the white immigrant technological entrepreneurs support for the jack-of-all-trades theory, while in the Asian immigrant technological entrepreneurs hobo theory is supported. In the Asian technological workers only there appears the significant self-selection or comparative advantage component, while at the same time discriminatory components are significant.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2008년도 정기학술발표대회 논문집
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• pp.587-590
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• 2008

수주산업이라는 건설업의 특성상 일반 건설업체는 기본적으로 수주 물량을 스스로 계획할 수 없으며, 연간 수주물량의 변동폭이 커 장비나 인력을 상시 고용하는데 한계를 가진다. 따라서 전문 건설업체와의 수직적 분업 관계를 통해 위험을 분산시키고 생산의 효율성을 높이고자 하는 의도 하에, 일반적으로 하도급에 의한 생산구조를 형성하고 있다. 이러한 생산구조에 따라 외주관리가 프로젝트의 성공적인 완수에 미치는 영향이 큼에도 불구하고, 그간 대다수 건설업체들은 효율적인 조직협력 관계를 이루지 못하고 있다. 이에 본 연구에서는 일반 전문건설업체간 조직협력의 현 실태를 파악하고 보완사항을 발굴하여 개선방안을 모색하고자 한다. 본 논문은 예비적 차원의 선행연구로서 협력업체의 현황조사를 바탕으로 그 원인을 고찰해 보고자 한다. 분석 결과 건설 산업의 협력에 대한 현 실태는 외형적인 협력조직 구성에 머물고 있으며 생산협력에 대한 효율적인 조직 활용을 못하는 것으로 나타났다. 전문건설업체는 수주 물량 확보를 위한 발판으로 협력업체로 등록을 하고 있었으며 생산향상을 위한 실질적인 협력행위가 거의 없는 수준이었다. 이에 건설업체간 조직협력의 각 단계에서 건설 생산성향상과 경제적 가치의 창출을 위한 생산협력의 해결방안이 요구된다.