Sunghwa Park

Prof. Dr. Sunghwa Park

orcid

Research Focus & Metrics

Academic Career Length

9Years (2018-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 September 2021 in Risks
Verified
Journal Article
Open access
PDF file
SPSunghwa Park
Sunghwa Park
HKHyunsok Kim
Hyunsok Kim
JKJanghan Kwon
Janghan Kwon
TKTaeil Kim
Taeil Kim
In this paper, we use a logit model to predict the probability of default for Korean shipping companies. We explore numerous financial ratios to find predictors of a shipping firm’s failure and construct four default prediction models. The results suggest that a model with industry specific indicators outperforms other models in predictive ability. This finding indicates that utilizing information about unique financial characteristics of the shipping industry may enhance the performance of default prediction models. Given the importance of the shipping industry in the Korean economy, this study can benefit both policymakers and market participants.

17 December 2021 in Sustainability
Verified
Journal Article
Open access
PDF file
SPSunghwa Park
Sunghwa Park
JKJanghan Kwon
Janghan Kwon
TKTaeil Kim
Taeil Kim
Using time-series data from January 2006 to February 2021, this study analyzed the effect of macroeconomic shocks on the shipping and shipbuilding industries. The Granger causality test, recursive structural vector autoregressive models, impulse response analysis, historical decomposition, and local projections model were used to identify the dynamic relationships between the variables and their dynamic effects, based on the results of the theoretical model and previous research. First, the Granger causality test demonstrated that the macroeconomic variables have causal relations with the shipping and shipbuilding industries. Second, the recursive structural vector autoregressive estimation demonstrated that the direction of the shocks from macroeconomic variables is statistically significantly, consistent with the theoretical model. The same results were found in the recursive structural vector autoregressive model and local projection impulse response analysis. Finally, the historical decomposition identified the main causal variables affecting the shipping and shipbuilding industries by period. These findings can help policymakers, operators of shipping and shipbuilding companies, and investors evaluate and make policy-supporting decisions on industry conditions.

15 April 2025 in Transportation Research Interdisciplinary Perspectives
Verified
Journal Article
Open access
HKHanna Kim
Hanna Kim
SPSunghwa Park
Sunghwa Park

5 December 2023 in Sustainability
Verified
Journal Article
Open access
PDF file
TKTaeil Kim
Taeil Kim
SPSunghwa Park
Sunghwa Park
HKHANNA KIM
HANNA KIM
JKJanghan Kwon
Janghan Kwon
This study examined the intricate effects of the COVID-19 pandemic on international trade complexity. Focusing on major international trading entities such as Hong Kong, Korea, China, Japan, and the U.S., we evaluated how confirmed COVID-19 cases and government responses influenced trade patterns, particularly in exports and imports. We employed a seemingly unrelated regression (SUR) analysis with cyclic regression coefficients to scrutinize changes in trade relationships between 2020 and 2021. Korea serves as the central country for this analysis, and the findings extend to other nations. The results revealed the varied impact of COVID-19 on trade across countries. Exports from Korea to China were correlated with COVID-19 case numbers and government actions in both countries. Additionally, imports from China, Japan, the U.S. and Vietnam—excluding Hong Kong—were significantly influenced by confirmed COVID-19 cases in Korea, reflecting the demand dynamics. Government interventions also played a substantial role in shaping trade patterns. Previous studies have primarily focused on financial markets and supply chains, whereas our study analyzed the changes in trade with Korea’s five largest trading partners: China, the U.S., Japan, Vietnam, and Hong Kong. Notably, we utilized long-term data and changes in major trading partners in Asia over time.

3 November 2022 in Maritime Policy & Management
Verified
Journal Article
Closed access
SPSunghwa Park
Sunghwa Park
JKJanghan Kwon
Janghan Kwon
TKTaeil Kim
Taeil Kim
In this study, we propose an early warning system for the shipping industry in Korea using two approaches. The signal approach and the logit model are used to develop a comprehensive monitoring system. An early warning index based on the signal approach is constructed with 12 indicators. The index shows high accuracy in predicting crises. The logit model is then adopted to enhance the performance of the early warning system. The results of this study show that the complementary use of these two methods can establish an efficient market monitoring system.

1 February 2023 in Journal of Coastal Research
Verified
Journal Article
Closed access
PDF file
HKHanna Kim
Hanna Kim
SPSunghwa Park
Sunghwa Park
SCSooho Choi
Sooho Choi
TKTaeil Kim
Taeil Kim
Kim, H.; Park, S.; Choi, S., and Kim, T., 2023. Ship investment valuation using Real Option Analysis (ROA). In: Lee, J.L.; Lee, H.; Min, B.I.; Chang, J.-I.; Cho, G.T.; Yoon, J.-S., and Lee, J. (eds.), Multidisciplinary Approaches to Coastal and Marine Management. Journal of Coastal Research, Special Issue No. 116, pp. 423-427. Charlotte (North Carolina), ISSN 0749-0208. As ship investment entails an extensive amount of investment, it is critical to conduct the valuation of investment plans prior to undertaking the investment. In this study, comparison analysis was conducted to empirically analyze a traditional method of ship investment valuation, Net Present Value (NPV) and Real Option Analysis (ROA). This study intends to suggest improvement measures through a real option valuation methodology for ship investment that can factor into uncertainty. This analysis was conducted through the option to defer deferable for two years and the option to expand placing additional orders for 8 vessels depending on market conditions within 2 years after the initial order of 8 vessels. As a result of the comparative analysis, it can be confirmed that the real option would show higher value of ship investment than the traditional valuation and affect investment decision-making, since it considers uncertainty in the event of ship investment.