• Title/Summary/Keyword: Causality Test

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Effect of Agricultural Exports and Imports on Economic Growth in Bangladesh: A Study on Agribusiness Supply Chain

  • HASAN, Mostofa Mahmud;HOSSAIN, BM Sajjad;SAYEM, Md. Abu;AFSAR, Mahnaz
    • Journal of Distribution Science
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    • v.20 no.11
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    • pp.79-88
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    • 2022
  • Purpose: The purpose of this study was to determine the effect of agricultural exports and imports on economic growth in Bangladesh and propose an upgraded and customized model of the supply chain for agribusiness growth in Bangladesh to achieve plain sailing and systematic operation and financial gains at home and abroad. Research design, data, and methodology: All data in the research have been collected from secondary sources. Gross domestic product was used as the dependent variable and exports and imports of agricultural products were used as independent variables. Pairwise Granger causality was utilized to see the impact of the variable responsible for the economic growth in Bangladesh and the causal relationship between the variables analyzed was measured using Johansen co-integration test. Results: From the empirical analysis, the researchers observed that agricultural commodity imports and exports have a unidirectional impact on economic growth in Bangladesh and a long-run causal link with economic growth in Bangladesh. The suggested supply chain model of agribusiness aids in achieving smooth operations, systematic management, and monetary gains both domestically and internationally. Conclusions: This paper contributes to the development of a more effective and profitable agribusiness supply chain in Bangladesh systematically through their theoretical and practical implications.

The Causal Relationship between ICT Growth and Employment in Korea (한국의 ICT산업의 발전과 고용 간의 인과관계에 관한 실증적 분석)

  • Kim, Sukyeong;Lee, Sang-Yong Tom
    • Information Systems Review
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    • v.16 no.2
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    • pp.77-95
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    • 2014
  • From the success of TDX and CDMA to today's social media boom, Korea's ICT has achieved an amazing growth for the last couple of decades. However, in spite of ICT's role as an engine of growth in Korea, there have been concerns that ICT growth would negatively affect national employment due to the labor substitution effect. While some scholars insist that ICT would positively affect employment because it will enlarge the size of industry itself, many people blame ICT as a main culprit of rising unemployment rates. In this study, we try to empirically find the true effect of ICT growth on employment in Korea. We use the data of ICT productions, ICT investments, and various industries employments from 1995 to 2011. The methodologies we adopted for this study is Granger causality tests and impulse response functions based on vector autoregression (VAR) model. We find that ICT has negative impact on service industries, while it has positive impact on manufacturing industries. Meanwhile, ICT has no statistically significant impact on ICT industry itself. Since the impacts of ICT on employment are mixed, we can argue that ICT should not be blamed for the main cause of low employment. We suggest a direction of future policies to utilize ICT for vitalizing employments in Korea.

The Effect of SNS Information Attributes on Usability and Diffusion Intention -Moderating Effect of Market Mavenism. (SNS정보속성이 유용성지각과 확산의도에 미치는 영향 -마켓메이븐경향(Market Mavenism)의 조절효과-)

  • Kim, Sang-Jo;Jung, Seon-Mi
    • Management & Information Systems Review
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    • v.36 no.1
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    • pp.95-114
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    • 2017
  • The purpose of this study is to search information attributes suitable for SNS and to identify the influence of individuals or groups who contribute to the creation and diffusion of information in the SNS. The researchers extracted the accuracy, two-sided information, novelty, diversity, and experiential factors that influence the acceptance and diffusion of information in the SNS, and identified the relationships among the variables, the usefulness of information and the degree of information diffusion intention. And researchers studied market maven who play the key role in creating and diffusing SNS information. A total of 600 questionnaires were collected and 549 questionnaires were used to test the research hypothesis. The results of the study are as follows. Consumers considered information, which had accuracy, two-sided, and experiential attributes, as useful. But novelty or diversity information were regarded as unuseful because of motive to avoid ambiguity. In the Market Maven Group who have the ability to acquire and edit SNS information, however, there were weak or negative causality between experience and accuracy and information usability factors. but positive causality between novelty and diversity factors of information and usability.

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Interdependence of the Asia-Pacific Emerging Equity Markets (아시아-태평양지역 국가들의 상호의존성)

  • Moon, Gyu-Hyun;Hong, Chung-Hyo
    • The Korean Journal of Financial Management
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    • v.20 no.2
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    • pp.151-180
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    • 2003
  • We examine the interdependence of the major Asia-Pacific stock markets including S&P 500, FTSE 100, Kualar Lumpur Composite, Straits Times, Hang Seng, NIKKEI 225 and KOSPI 200 from October 4, 1995 to March 31,2000. The analysis employs the vector-auto-regression, Granger causality, impulse response function and variance decomposition using daily returns on the national stock market indices. The findings in this paper indicate that the volatilities of all countries has grown after IMF crisis, while there is no significance in cointegration test of both total period and sub-periods. This result implies that investors are able to get abnormal returns by investment diversification according to the portfolio theory. We find that while the effect from NIKKEI 225 to others is relatively weak, the interdependence from S&P 500 to other countries is strong. Also we find that the strong effect from Straits Times to Hang Seng exists. This study suggests that there is slight feedback relation between KOSPI 200 and Kualar Lumpur Composite, Straits Times, Hang Seng stock market.

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The Relationship Between International Capital Flows and Foreign Exchange Volatility (국제 자본이동과 환율 변동성에 관한 연구: 주요 통화대비 원화 환율을 중심으로)

  • Choi, Don-Seung
    • Korea Trade Review
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    • v.42 no.4
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    • pp.1-20
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    • 2017
  • This study is to investigate the dynamic relationship between international capital flows and won exchange rate to the major currency in Korea. As the results of Granger causality test, international capital flows Granger-cause currency rate volatility in the short term. However, over time, won exchange rate volatility Granger-cause international capital flows in Korea. According to the results by period divided based on 2008 financial crisis, international capital flows have the significant effects on won-dollar exchange rate volatility before 2008 crisis although currency rate volatility Granger-cause international capital flows after the crisis. As the results of impulse-response function of the basis of VAR, foreign exchange rate volatility has no connection with international capital flows before the crisis while it doesn't after. After the crisis, currency rate volatility has promoted international capital flows, while its influence diminishes as time passes. As these results, the uncertainty of foreign exchange market tend to influence the international capital flows rather than vice versa in Korea. Thus, it would be a more effective policy to control the uncertainty of market than the direct restrictions international capital flows.

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A Study on the Impact of Real Exchange Rate Volatility of RMB on China's Foreign Direct Investment to Japan

  • He, Yugang
    • East Asian Journal of Business Economics (EAJBE)
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    • v.6 no.3
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    • pp.24-36
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    • 2018
  • Purpose - From establishing China-Japan diplomatic relations in 1972, the relations between two states has improved a lot, from which makes the government and the people reap much benefit. Owing to this reason, this paper aims at exploiting the impact of exchange rate volatility of RMB on China's foreign direct investment to Japan. Research design and methodology - The quarterly time series data from 2003 to 2016 will be employed to conduct an empirical analysis under the vector error correction model. Meanwhile, a menu of estimated methods such the Johansen co-integration test and the Granger Causality test will be also used to explore the impact of exchange rate volatility of RMB on China's foreign direct investment to Japan. Results - The empirical analysis results exhibit that the real exchange rate has a positive effect on China's foreign direct investment to Japan in the long run. Conversely, the real exchange rate volatility of RMB, the trade openness and the real GDP have a negative effect on China's foreign direct investment to Japan in the long run. However, in the short run, the China's foreign direct investment to Japan, the real exchange rate, the trade openness and the real GDP in period have a negative effect on China's foreign direct investment to Japan in period. Oppositely, the real exchange rate volatility of RMB in period has a positive effect on China's foreign direct investment to Japan in period. Conclusions - From the empirical evidences in this paper provided, it can be concluded that an increase in the exchange rate volatility of RMB can result in a decrease in the China's foreign direct investment to Japan in the long run. However, an increase in the exchange rate volatility of RMB can lead to an increase in the China's foreign direct investment to Japan in the short run. Therefore, the China's government should have a best control of the real exchange rate volatility of RMB so as to improve China's foreign direct investment to Japan.

The Effects of Job Types of Physical Therapists on the Job Satisfaction and Organizational Commitment : To center the Pusan Area (물리치료사의 직무유형이 직무만족도와 조직몰입도에 미치는 영향 : 부산지역을 중심으로)

  • Kim, Seonggu;No, Jungwoon;Park, Mingyu;Ha, Yongmok;Kim, Chihyok;Bae, Wonsik
    • Journal of The Korean Society of Integrative Medicine
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    • v.2 no.4
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    • pp.41-48
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    • 2014
  • Purpose : The purpose of this survey was to investigate the effect on job satisfaction and organizational commitment according to the job types of Pusan area physical therapists figuring out structural causality between job satisfaction and organizational commitment. Method : This survey was conducted through structured questionnaire for the physical therapists working in Pusan area, and data from 217 therapists were utilized in the final analysis. Data collection was deployment questionnaire using Google Docs (online survey), The SPSS 21.0 program was used according to for research purposes independent t-test was used for individual and job characteristics, was used according to job types and job satisfaction and organizational commitment are logistic regression analysis, correlation analysis and chi-square test. Result : The results of this study were as follows. 1. Overall job satisfaction according to the job types was appeared musculoskeletal physical therapist more 4 times. 2. Job types according to the organizational commitment did not make direct effect. Conclusion : Number of musculoskeletal physical therapist than neurological physical therapist was fewer and there were many per day treatment of patients, but overall job satisfaction was appeared that is higher. This is thought that job types affects more than working environment.

A survey on the impact of a pharmacovigilance practice training course for future doctors of Korean medicine on their knowledge, attitudes, and perception

  • Kim, Mikyung;Han, Chang-ho
    • The Journal of Korean Medicine
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    • v.42 no.4
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    • pp.40-60
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    • 2021
  • Objectives: This study aimed to evaluate the impact of a training course on pharmacovigilance for future doctors of Korean medicine (DKM). Methods: In 2020, a pharmacovigilance training course was conducted for 57 senior students of a Korean medicine (KM) college, and its impact to the students were assessed in terms of the knowledge, attitudes, and perceptions of these students at three-time points: pre-training, post-training, and 4-6 months after the end of the training. Results: A total of 38 students completed the survey. The average score from the knowledge test increased significantly after training compared to prior to the training (5.47±2.140, 6.61±1.001, respectively, p<0.001) and was maintained until the final survey (6.61±1.220). The rate of correct answers to most of the knowledge test questions increased after the training but decreased in the final survey. In terms of attitudes, self-confidence in causality assessment (2.63±1.025, 4.58±0.826, p<0.001) and spontaneous reporting (2.08±1.050, 4.74±0.446, p<0.001) significantly increased after the training and then slightly decreased (3.92±1.171, 4.40±0.755). The perception level was high prior to the training, and this pattern was maintained throughout the study period. Students responded that pharmacovigilance education was necessary for DKM after training, and for the undergraduates of KM colleges. Conclusions: This study shows that this pharmacovigilance training course is effective for students majoring in KM but that retraining is required at least 6 months after the initial training. Further follow-up studies are needed to ensure that students actively participate in spontaneous reporting after graduation, and continuous education should be provided to graduates.

The Structural Relationship between Surfer's Experience, Lovemark, Flow and Customer Behavior Intention (서퍼의 체험과 러브마크, 몰입, 소비행동의도 간의 관계)

  • Ryu, Jean-Seung;Kim, Sangyoo;Kim, Soo-Hyun
    • Journal of the Korea Convergence Society
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    • v.13 no.5
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    • pp.129-136
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    • 2022
  • The purpose of this study was to investigate the structural relationship between surfer's experience, lovemark, flow and customer behavioral intention. The model's goodness-of-fit test was conducted to analyze the mediating effect of experience, lovemark, flow and consumer behavioral intention. The result is as follows. First, As a result of the conformity test of the research model, all the fit indexes met the criteria for goodness of fit to predict the causality of experience, lovemark, flow, and customer behavioral intention. Second, experience factors positively effected the lovemark. Experience factors had a positive effect on the flow. Flow had a positive effect on customer behavioral intention. Lovemarks had a positive effect on customer behavioral intention. Experience factors did not have a positive effect on customer behavioral intention.

Influencing Factors of Behavior of Reducing Exposure to Endocrine Disrupting Chemicals in Pregnant Women (임부의 내분비계 장애물질 노출저감화행동의 영향요인)

  • Um, Jiyoun;Jun, Eun-Young
    • Journal of Home Health Care Nursing
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    • v.30 no.2
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    • pp.202-215
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    • 2023
  • Purpose: This study attempted to determine the factors related to behaviors of reducing exposure to endocrine disrupting chemicals (BRE to EDCs) in pregnancy, based on the PRECEDE model. Methods: A cross-sectional survey was conducted with participants (N=239) who met the medical records and eligibility criteria from the Women's Hospital and Public Health Center. Data were collected using a specially-designed questionnaire based on the PRECEDE model and included BRE to EDCs predisposing factors, reinforcing factors, and enabling factors. The data were analyzed using the chi-square test, independent t-test, one way ANOVA, Pearson's correlation coefficients and a hierarchical multiple regression analysis. Results: In Model I it was found that participation in prenatal education influenced the BRE to EDCs significantly; and a regression showed that the determinant variables accounted for 3.4%. In Model II, the predisposing factors of perceived barriers of BRE to EDCs and environmental self-efficacy were added. It was shown that they significantly influenced BRE to EDCs in the order named, and a regression revealed that increases in the determinant variables accounted for 22.5%. In Model III, to which enabling factors were added, the information acquisition experience of BRE to EDCs interacted significantly with BRE to EDCs and a regression showed an increase in the determinant variables accounting for 25.3%. Conclusion: The results of this study, the content of endocrine disruptors must be included in the prenatal care education program for pregnant women, and it should be composed of contents that can reduce the perceived obstacle to BRE to EDCs, enhance the environmental self-efficacy, and provide the information in regard to reducing exposure to EDCs.