Today’s cities require deeper understanding of the thermal environment and PM10 as their management becomes more critical. Based on these circumstances, this study investigated the Granger causality between the thermal environment and PM10 of the 25 districts of Seoul, the most populous and urbanized city in Korea. The results of the Granger causality test on the thermal environment and PM10 were classified into 12 types. Except for type 12, the temperature and urban island heat intensity of the other 11 types operated as a Granger-cause to each other in both directions. Temperature operates as a Granger-cause of urban island heat intensity in type 12. The PM10 level and urban pollution island intensity operated as a Granger-cause to each other in all districts. For types 1 and 2, thermal environment operated as a Granger-cause to PM10 in one direction, and type 3–type 12 confirmed that thermal environment and PM10 operated as a Granger-cause in both directions. Findings reveal the intricate c

This study investigates the causal relationship between public and private external debt and economic growth in developing countries. Our model includes 18 selected Asian developing and transition economies from 1995 thru 2019. We employ the dynamic heterogeneous panel data methods, pooled mean group (PMG), robust cross-sectional augmented autoregressive distributed lag (CS-ARDL), and pairwise panel causality test. The results of PMG and CS-ARDL show the existence of causality between external debt and economic growth both in the short-run and long-run. The pairwise Granger causality test found the bidirectional causal relationship runs from total external debt, public external debt, and private external debt to economic growth and economic growth to external debt. The results showed first the existence of causality in the short-run and long-run between external debt and economic growth and the second, bi-directional causality that runs from external debt to economic growth and economic growth to external debt. Both the dynamic models and robust estimator found the same inferences about the impact of main variables on economic growth in Asian developing and transition economies. The findings of this study suggest to assure debt management, investment in productive sectors, increase domestic savings, decrease external dependency, and focus on international trade.

This study aims to analyze the causality of placeness cognition which includes the place satisfaction, place attachment, place function, and behavioral intention of those who visit Suseong amusement park. A questionnaire survey was administered to 255 individuals who visited in Suseong amusement park. To conduct the analysis, six hypotheses were formulated and tested. While two hypotheses were statistically rejected, four hypotheses were accepted. First, place satisfaction was found to have a positive effect on place function (β=.577, p<0.001). Second, place attachment had a positive effect on behavioral intention (β=.450, p<0.001). Third, place function had a positive effect on behavioral intention (β=.247, p<0.05). Fourth, place function was found to have a positive effect on place attachment (β=.637, p<0.001). Unlike most existing research which has indicated that place satisfaction has a direct effect on behavioral intention this study suggests a that double mediating effect through place function and place attachment between place satisfaction and behavioral intention. In addition to increasing satisfaction through the environment of the Suseong Amusement Park, it is also necessary to improve the function of the place to ensure repeated visits from visitors.

세계의 주요 자원중 하나인 원유는 산업의 가장 기초적인 부분을 담당하고 있으며 원유를 통하여 많은 액체화물이 생산되고 있다. 석유화학단지들은 인근의 항만을 통해 원유를 수입후 정제를 통해 석유정제품, 화학생산공업품 등을 생산한다. 본 연구에서는 우리나라의 주요 석유화학단지와 인근에 위치한 액체화물 항만 간의 관계를 확인하고자 울산항, 대산항, 여수광양항을 선정하였다. 항만물동량 시계열 데이 터를 이용한 분석을 실시하였으며 VAR 모형을 이용하였다. 이를 수행하기 위해 단위근 검정을 실시했으며 Granger 및 Toda-Yamamoto 인과 검정을 통하여 관계를 확인하였다.

The paper aims to test long-term and short-term causality from four exchange rates, the Korean won/$US, the Korean won/Euro, the Korean won/Japanese yen, and the Korean won/Chinese yuan, to the Korea Composite Stock Price Index in the presence of several macroeconomic variables using monthly data from January 1986 to June 2018. The results of Johansen cointegration tests show that there exists at least one cointegrating equation, which indicates that long-run causality from an exchange rate to the Korean stock market will exist. The results of vector error correction estimates show that: for long-term causality, the coefficient of the error correction term is significant with a negative sign, that is, long-term causality from exchange rates to the Korean stock market is observed. For short-term causality, the coefficient of the Japanese yen exchange rate is significant with a positive sign, that is, short-term causality from the Japanese yen exchange rate to the Korean stock market is observed. The coefficient of the financial crises i.e. 1997-1999 Asian financial crisis and 2007- 2008 global financial crisis on the endogenous variables in the model and the Korean economy is significant. The result indicates that the financial crises have considerably affected the Korean economy, especially a negative effect on money supply.

The purpose of this study is to explore the dynamic properties of causality and asymmetric price transmission in the distributional channel of the tomato market in Korea. Using the wholesale and retail price series of the tomato market, we obtain the following results. First, the price transmission mechanism reveals the causal relationship channeling from the wholesale price to the retail price. Second, we find an asymmetric price transmission from the analysis using the threshold partial adjustment model. The retail price responds strongly when the wholesale price increases. On the other hand, the retail price shows sluggish adjustment when the wholesale price decreases.

Colombo noticeably became the most economical gateway to the Indian subcontinent, in terms of cost as well as time. The Colombo Port Expansion Project (CPEP) started commencement with the purpose of accommodating mega ships, under the long-term strategies of making Colombo the hub of South Asia. In this context, the purpose of this study is to investigate the causal relationship between Indian ports’ originated container traffic, and total transshipments of the port of Colombo, and also to identify the nature of the causality between the two variables, evaluating Granger causality test results. It finds unidirectional causality from total transshipments of Colombo to Indian ports’ originated transshipments in the port of Colombo. It suggested that ongoing port expansion projects, opening up for new markets and attracting new shipping lines in the port of Colombo, have generated significant impact on Indian ports’ container traffic, via the port of Colombo. Findings would be valuable for future forecasting of container traffic in Colombo port and the policy-making process in the port as well.

Algal blooming in 4 major rivers introduces substantial impacts to water front activity. Concentrations of algae are increasing at major points along the Geum River. Ecosystem food webs can be affected by algal blooming because blue-green algae release toxic materials. Even though there have been many studies on blue-green algae, its causality to environmental factors has not been completely determined yet. This study analyzed the exclusive correlation between various hydrometeorological, water quality, and hydrologic variables and the cell number of cyanobacteria to understand causality of blue-green algae in the Geum River. A prewhitening process was introduced to remove the autocorrelation structure and periodicity, which is useful to evaluate the effective relationship between two time series.

본 연구는 청소년 선수들이 지각한 동기 분위기와 재미, 운동 몰입의 인과모형을 검증하는데 그 목적이 있다. 총 738명의 남자 청소년 축구, 농구, 야구 선수들을 대상으로 동기분위기지각, 스포츠 재미, 운동몰입(commitment)검사지로 자료를 수집하였다. 신뢰도와 타당도 검증, 기술통계 및 다변량분석, 이원변량분석과 상관분석을 실시하고, 이론적으로 가설화된 인과모형은 구조방정식 모델로 검증하였다. 나타난 결과 첫째, 청소년 선수들은 경쟁분위기 보다 숙련분위기 지각이 더 높았고, 농구와 야구선수들이 축구선수들보다 숙련분위기 지각이, 야구와 축구 선수들이 농구선수들보다 경쟁분위기 지각이 더 높았다. 둘째, 스포츠 재미는 모든 요인에서 학교급별, 종목 간 차이를 보였고 단지 유능성 지각만 학교급별 차이가 나타나지 않았다. 셋째, 행위몰입은 종목 간 차이가, 인지몰입은 상호작용 효과가 나타났다. 넷째, 숙련 분위기 지각은 운동 재미와 몰입에 정적 상관을, 경쟁분위기지각은 부적 혹은 유의한 상관이 나타나지 않았다. 다섯째, 가설화된 인과모형은 양호한 적합도를 보였다. 숙련분위기 지각은 재미에 정적 영향을, 몰입에는 간접영향을 미쳤으나, 경쟁분위기 지각은 재미에 영향을 미치지 못하고, 몰입에는 부적영향을 미쳤다. 재미는 몰입에 높은 정적영향을 미쳤다. 마지막으로 다집단 분석결과 인과모형은 학교급별(중/고), 종목별(축구/농구/야구) 모든 집단에서 적합하게 나타났다. 이 결과를 토대로 선행연구와 비교하여 이론적, 실증적 논의를 전개하였다.

본 연구의 목적은 축구 선수 및 하키 선수들을 대상으로 시합전 승부에 대한 예측, 승부에 대한 인과소재 예측을 하게 한 후 시합후 시합결과에 따라서 승부 예측과 인과소재 예측의 변화가 있는지 그리고 시합결과에 대한 놀라움이 어떻게 나타나는지 살펴보는 것이다. 실험 1의 연구참여자는 S대 축구선수(14명)와 Z대 축구선수(20명)이며 실험 2의 연구참여자는 S대 하키선수(12명)와 I대 하키선수(14명)이다. 실험 과제는 사전예측 과제, 사후예측 과제 및 시합 결과에 대한 놀라움 평정이다. 사전예측 과제는 시합전 승부 예측과 인과소재 예측으로 구성되어 있으며 사후예측 과제는 결과를 모른다고 가정하고 시합후 사전과제를 회상하고 시합결과에 대한 놀라움을 평정하는 것이다. 연구결과 실험 1에서는 승리팀 예측확신과 운예측이 증가하였고, 실험 2에서는 운 예측이 증가하고 체력 예측이 감소하였다. 그러나 놀람의 차이는 나타나지 않았다. 본 연구를 통해서 인과 해석의 문화적 차이, 사후과잉확신 편향 연구의 실험 설계, 자기-봉사적 편향을 살펴 볼 수 있을 것이다.