• 무역학회지
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• 제45권4호
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• pp.107-123
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• 2020

The purpose of this paper is to analyze the Granger Causality relations between Korean FDI and exports in Vietnam using time-series from 2005 to 2019. Using 15-industry semi-annual data of Korean FDI and exports toward Vietnam, the Granger Causality Tests were conducted. Var and VEC models were decided after unit-root and cointegration tests of variables. Findings and implications of the empirical tests are as follows. First, unexpectedly FDI did not Grange-cause exports only in one direction. In two industries, food & beverage and medical & chemical products, there were Granger causality relations in both directions. In eight industries including print, publishig, pulp & paper, exports did Grange-cause FDI. In the rest of five industries including automative & trailer industry, there were no Granger Causality relation in both directions. Second, we presume that the both direction-causality relations are desirable phenomenon for Korea. Because Korean FDI and exports are increasing at the same time. On the other hand, substitution relationship between Korea's exports and FDI occur in the industry that exports did Grange-cause FDI. Finally, more in-depth researches considering Vietnam's consumer demand and the oriented characteristics of FDI are needed. The results of this research will contribute to understand structural patterns of FDI and exports in Vietnam and to make investment and export decisions.

• Journal of the Korean Data and Information Science Society
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• 제28권2호
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• pp.361-369
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• 2017

본 논문은 국제원유가격에 대한 환율의 인과관계를 분석하였다. 두 변수의 인과관계에 대해서는 많은 선행연구들이 있지만 인과관계의 유무에 대해서는 결과들이 일치하지 않고 있다. 본 연구는 이러한 상반된 결과들이 경제상황에 따라 각기 다른 인과관계가 분석되었을 가능성에 착안해서 분위수별로 인과관계를 분석하며 이 점에서 지금까지 평균 인과관계를 분석한 선행연구들과 차별화된다. 자료는 Brent 원유의 국제가격과 미국의 주요국 환율의 가중평균 (major currencies dollar index; MCDI)의 1987년 5월부터 2013년 7월까지 기간의 월별자료를 이용하였다. 분석방법으로서 분위수 인과관계 개념에 대해 비모수 커널방법을 적용한 Jeong 등 (2012) 방법을 사용하였다. 분석결과, 전통적인 평균 인과관계에서는 달러 환율이 원인이고 Brent 원유가격이 결과인 인과관계가 존재하는 반면에, 비모수분위수검정에서는 중앙값인 0.5 분위수 근방의 분위수에서는 인과관계가 존재하고 대부분 분위수에서 인과관계는 존재하지 않는 것으로 나타나서 평균인과 검정결과를 해석할 때 주의가 필요한 것으로 나타났다.

• 수산해양기술연구
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• 제55권3호
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• pp.264-272
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• 2019

The aim of this study is to analyze the relationship between international oil price as a fuel cost in overseas fisheries and skipjack tuna price as a part of main products in overseas fisheries using monthly time series data from 2008 to 2017. The study also tried to analyze the change of fishing profits by fuel cost. For a time series analysis, this study conducted both the unit-root test for stability of data and the Johansen cointegration test for long-term equilibrium relations among variables. In addition, it used not only the Granger causality test to examine interactions among variables, but also the Vector Auto Regressive (VAR) model to estimate statistical impacts among variables used in the model. Results of this study are as follows. First, each data on variables was not found to be stationary from the ADF unit-root test and long-term equilibrium relations among variables were not found from a Johansen cointegration test. Second, the Granger causality test showed that the international oil prices would directly cause changes in skipjack tuna prices. Third, the VAR model indicated that the posterior t-2 period change of international oil price would have an statistically significant effect on changes of skipjack tuna prices. Finally, fishing profits from skipjack would be decreased by 0.06% if the fuel cost increases by 1%.

• 문화기술의 융합
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• 제9권3호
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• pp.281-286
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• 2023

본 연구는 서울, 서울 강남, 서울 강북을 대상으로 주택 매매가격과 전세가격의 인과관계를 분석하였다. 시간불변 그랜져 인과성 검정을 통해 분석한 결과, 서울과 강북 지역에서는 매매가격과 전세가격이 양방향 인과성이 있는 것으로 분석된 반면, 강남은 양방향으로 인과성이 없는 것으로 분석되었다. 반면, 시간가변 그랜저 인과성 검정을 통해 분석한 결과에서는 서울, 강남, 강북 지역 모두 1993년 이후 전기간 동안 주택 전세가격은 매매가격에 그랜저 인과관계가 있는 것으로 분석된 반면, 전세가격에 대한 매매가격의 그랜저 인과성이 발견된 빈도는 그 역에 비해 적었다. 특징적인 것은 강남 지역은 2010년 이후 전세가격이 매매가격에 대해 지속적으로 그랜저 인과하는 것으로 분석되었다는 것이다. 이와 같은 분석 결과는 매매시장과 전세시장이 양방향으로 강한 영향을 주고받는 구조에서 전세시장에 대한 유동성 공급 확대는 주택시장 전반에 걸쳐 변동성을 확대할 수 있음을 시사한다.

• 기술혁신연구
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• 제24권2호
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• pp.91-113
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• 2016

본 연구는 R&D 투자와 기술무역 변수들 간에 어떠한 인과관계가 있는지를 검토하고, 그 결과에 대한 정책적 함의를 제시함으로써 연구개발 활동의 촉진과 기술무역 활성화 방안을 모색하는데 그 목적이 있다. 이에 정부 R&D 투자, 민간 R&D 투자, 기술도입, 그리고 기술수출로 구성된 다변량 모형을 설정하고, 오차수정모형을 토대로 Granger-인과성 검정을 실시하였다. 분석결과 단기적으로는 총 5개의 인과관계가 성립하는 것으로 나타났고, 장기적으로는 정부 R&D 투자에서 기술수출로의 인과관계를 제외한 11개의 관계에서 인과성이 존재하는 것으로 확인되었다. 아울러 충격반응분석을 통해 시간의 흐름에 따라 각 변수들이 특정변수의 충격에 어떻게 반응하는지도 살펴보았다. 본 연구는 R&D 투자와 기술무역간의 인과관계를 실증적으로 분석함으로써 그 관계를 명확히 하고, 도출된 결과들을 토대로 연구개발 활동 및 기술무역진흥을 위한 시사점을 제시하고 있다는 점에서 그 의의가 있다.

• Ocean and Polar Research
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• 제40권1호
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• pp.49-58
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• 2018

This study aimed to analyze the causality of hairtail prices among import and domestic distribution channels using a Vector Error Correction Model(VECM). The results are as follows. First, since the ADF unit-root test suggests that each of the price variables, apart from retail price, has a unit root, the price variables should be 1st-differenced to secure the stability of the prices. Next, through the Johansen co-integration test, it was discovered that there are long-term relationships among the price variables. On the basis of the co-integration test, VECM analysis shows that the producer price has a long-run balance with the import and wholesale prices. In particular, when the prices deviate from the balance, the producer price dynamically adjusts to return to the long-term relationship among prices. It also indicates that the producer price has an impact on the import, wholesale, and retail prices in the short-term, and the import price has an influence on the producer and wholesale prices. In addition, the impulse response analysis demonstrates that the impulse of import and producer prices has a lasting impact on each of the prices.

• 재무관리논총
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• 제9권1호
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• pp.221-244
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• 2003

This study is aimed to investigate the effects of foreign exchange rates on stock market returns. For the United States, the United Kingdom, Germany, Japan and Korea, the cross-correlation precedence of foreign exchange rate on stock market is found in the case of Germany and Korea. But that of stock market is not observed in any case. We performed three kinds of causality and exogeneity test of Granger test, Sims test and Geweke-Meese-Dent test. The analyses on the full period show the time-lag causal, exogeneous relation of foreign exchange rates with Granger, Sims and GMD test for Korea. The United Kingdom presents the significance with Granger and Sims test while Germany reveals the time-lag relation with Granger and GMD test. When we divide the period into two parts with the Louvre Accord, the first part give the less degree of time-lag relation. But in the second period the three kinds of causality and exogeneity test propose consistent time-lag relation with foreign exchange rates on stock markets for the United Kingdom and Korea with the three test methods. And Granger's test prove German foreign exchange market have a time-lag relation on stock market.

• Journal of the Korean Data and Information Science Society
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• 제20권4호
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• pp.655-660
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• 2009

최근의 글로벌경제위기 상황에서 국내 금융외환시장이 높은 환율변동을 보이며 불안한 모습을 보이고 있다. 따라서 그 어느 때보다 금리, 환율 등 가격변수들의 움직임 및 이들 간의 관계에 대한 관심이 높다. 본 연구에서는 국내시장을 중심으로 환율, 금리의 추이 및 인과관계에 대하여 연구하였다. 글로벌경제위기 상황에서 원/달러환율, 콜금리의 움직임에서 나타나는 주요 특징을 알아보고, 교차상관분석 및 그랜저 인과관계검정 등을 이용하여 두 변수간의 상호연관관계에 대하여 선도/지연 관계를 중심으로 분석하였다.

• The Journal of Asian Finance, Economics and Business
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• 제7권1호
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• pp.37-46
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• 2020

The paper examines the dynamic relationship of domestic credit and stock market liquidity on the economic growth of the Philippines from 1995 to 2018 applying the autoregressive distributed lag (ARDL) bounds testing approach to cointegration, together with Granger causality test based on vector error correction model (VECM). The ARDL model indicated a long-run relationship of domestic credit and stock market liquidity on GDP growth. When the GDP per capita is the dependent variable there is weak cointegration. Also, the Johansen cointegration test confirmed the existence of long-run relationship of domestic credit and stock market liquidity both on GDP growth and GDP per capita. The VECM concludes a long-run causality running from domestic credit and stock market liquidity to GDP growth. At levels, domestic credit has significant short-run causal relationship with GDP growth. As for stock market liquidity at first lag, has significant short-run causal relationship with GDP growth. With regards to VECM for GDP per capita, domestic credit and stock market liquidity indicates no significant dynamic adjustment to a new equilibrium if a disturbance occurs in the whole system. At levels, the results indicated the presence of short-run causality from stock market liquidity and GDP per capita. The CUSUMSQ plot complements the findings of the CUSUM plot that the estimated models for GDP growth and GDP per capita were stable.

• 한국기후변화학회지
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• 제9권2호
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• pp.171-179
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• 2018

The causal relationship between El Nino-Southern Oscillation (ENSO) and winter climate variability in Korea is tested by analyzing Korea Meteorological Administration Automatic Synoptic Observing System datasets for the past 59 years. Consistent with previous studies, positive phase of ENSO (El Nino) tends to cause warmer temperature and heavier precipitation in Korea in early winter with three-week lead time. This causality is quantified by performing Granger causality test. It turns out that ENSO explains an additional 9.25% of the variance of early-winter temperature anomalies in Korea, beyond that already provided by temperature itself. Likewise, 22.18% additional information is gained to explain early-winter precipitation variance by considering ENSO. This result, which differs from simple lead-lag correlation analysis, suggests that ENSO needs to be considered in predicting early-winter surface climate variability in Korea.