• 한국철도학회:학술대회논문집
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• 한국철도학회 2005년도 추계학술대회 논문집
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• pp.350-355
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• 2005

All the facility, the structure and the rolling stock have limited life so after starting use, we must decide disuse or use when it exeeds the lifetime. Currently the subway which exeeds the lifetime appeared in our country. Structural members of rolling stock structures were occurred corrosion after passage of time and It gives a many effect in the structure strength. In this study, it accomplished a structural analysis which use FEM for the No.2 subway line which operated currently, and it investigated the structural strength change which it follows with dimension change of structural members due to corrosion

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 1997년도 추계학술대회 논문집
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• pp.52-55
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• 1997

In this study, PLZT stock solutions were prepared by sol-gel processing to fabricate PLZT thin films. The stock solutions were spin-coated on ITO-glass and the film were annealed by rapid thermal annealing(RTA). The variation of tile crystallographic structure of the thin films and the phase transition with respect to it were observed using Raman spectra. Raman result showed that the band of spectra are broad as the amount of Zr substitution increased and specially, abrupt change occurs in the raman spectra upon crossing the tetragonal-rhombohedral phase boundry at 2/55/45 PLZT thin film. So, the fact that the crystallographic structure was transitted from tetragonal to rhombohedral structure was certified.

• The Journal of Asian Finance, Economics and Business
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• 제6권2호
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• pp.15-24
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• 2019

This study analyzes the effect of the capital structure of Korean manufacturing firms on default risk based on Moody's KMV option pricing model where the probability of default is obtained by measuring the distance to default as a covariant in logit model developed by Merton (1974). Based on the panel data of manufacturing firms, this study achieves its primary objective, using a fixed effect regression model and examines the effect of a firm's capital structure on default risk amongst publicly listed firms on Korea exchange during 2005-2016. Empirical results obtained suggest that the rise in short-term debt to assets leads to increase the risk of default whereas the increase in long-term debt to assets leads to decrease the default risk. The benefits of short-term debt financing over a short-term period fade out in the presence of information asymmetry. However, long-term debt financing overcomes the information asymmetry and enjoys the paybacks of tax advantage associated with long-term debt. Additionally, size, tangibility and interest coverage ratio are also the important determinants of default risk. Findings support the trade-off theory of capital structure and recommend the optimal use of long-term debt in a firm's capital structure.

• Journal of Korea Trade
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• 제23권7호
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• pp.147-155
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• 2019

Purpose - As the U.S.-China trade war has become considerably worse, the Chinese government is considering applying non-tariff barriers to trade, especially local contents rule. The main purpose of this research is to check whether it is suitable for Korean investors to invest in the current Chinese capital market. Design/methodology - In order to check the stability of the recent Chinese capital market, we investigated the behavior of foreign equity investment (including Korean equity investment) in the Chinese capital market after China announced the Shanghai-Hong Kong Stock Connect (SH-HK Connect). In this paper, we researched whether international portfolio investment would or would not contribute to an increase the volatility of an emerging market's stock market (Chinese capital market) when foreign investors make investment decisions based on the objective of short-term gains by rushing into countries whose markets are booming and fleeing from countries whose markets are falling. Findings - The empirical results indicate that foreign investors show strong, negative feedback trading behavior with regard to the stock index of the Shanghai Stock Exchange (SSE), and when the performance of foreign investors in the Chinese stock market was fairly good. Also, we found evidence that the behavior of foreign investors significantly decreased volatility in SSE stock returns. Consequently, the SH-HK Connect brought on a win-win effect for both the Chinese capital market and foreign investors. Originality/value - It appeared that the Chinese capital market was very suitable for Korean investors after the China's declaration of the SH-HK Connect. However, the win-win effect was brought on by the Chinese government's aggressive capital control but the capital controls could possibly cause financial turmoil in the Chinese capital market. Therefore, Chinese reform in industrial structure and the financial sector should keep pace with suitable capital control policies.

• 재무관리연구
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• 제20권2호
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• pp.41-72
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• 2003

본 연구는 첫째, 우리나라 상장기업들의 소유구조결정요인을 식별하기 위하여 이론적 모형을 설정하고, 상장기업들의 횡단면 자료와 시계열 자료를 결합한 패널자료를 이용하여 이론적 모형을 실증적으로 분석하며, 둘째, 주식시장의 개방이라는 환경 요인이 우리나라에서 소유구조의 결정요인에 영향을 주는가를 확인하고, 주식시장의 개방 전후를 구분하여 기업의 소유구조를 결정하는 요인이 어떻게 변화하였는지를 분석하였다. 분석 결과, 본 연구에서 제시된 모형이 상당한 의미를 가지나, 모형의 설명력은 비교적 낮아 제시된 결정요인들이 대주주1인 지분율의 변동을 $9\sim11%$ 정도 설명하고 있으며, 본 연구에서 제시된 타인자본의존도, 배당, 자산특이성, 수익성, 성장성, 위험, 기관투자가 지분율, 재벌여부 가변수 등의 결정요인들이 통계적으로 의미있는 변수가 되고 있으나 다만 규모 변수만이 표본기간에 따라 통계적 유의성과 회귀계수 부호에 일관성을 보이고 있지 못하다. 또한 본 연구에서 제시된 주식시장의 개방이라는 환경적인 요인이 소유구조를 설명하는 의미 있는 변수가 되고 있으며, 주식시장의 개방을 전후 한 시점으로 나누어 소유구조결정요인의 변화를 분석한 결과 주식시장 개방이라는 환경변수는 소유구조결정요인에 긍정적인 영향을 미치고 있다.

• The Journal of Asian Finance, Economics and Business
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• 제8권7호
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• pp.375-381
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• 2021

Underpricing signifies that IPO share prices do not reflect the fundamental value of the listed company. Corporate governance plays an essential role in IPOs where the board of directors, the independent board of directors, and the board of supervisors are significant elements of accurate share pricing. The study investigates the underpricing phenomena and short-term performance of the IPO companies during the listing process in the Ho Chi Minh Stock Exchange (HOSE). The work outcomes illustrate the role of the corporate organizational structure in the period of the IPO process that may attract potential investors. The hypothesis testing is conducted with a multiple regression model including 100 observations from enterprises doing IPO listed on HOSE. The study results generate signals for the investors and regulators that the board of directors holds a strong negative influence on the underpricing process. Secondly, the level of the independent board of directors and stock exchange in itself has no significant impact on the underpricing process. Underpricing is one of the many anomalies of the stock exchanges that provide wrong signals for the market participants. Identifying stock prices that reflect their intrinsic value is an ongoing debate among scholars, investors, and other market participants.

• The Journal of Asian Finance, Economics and Business
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• 제9권9호
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• pp.49-59
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• 2022

Based on assessing the impact of factors on the business efficiency of construction enterprises, the research team proposes policy implications to improve the business performance of listed construction enterprises in Vietnam in the coming time. The study used secondary data collected from the audited financial statements of 25 enterprises listed on Vietnam's stock market in the period 2015-2021 to estimate the factors affecting the business performance of construction enterprises. After collecting, the data will be encrypted and checked. The article uses a quantitative research method by using a linear regression model on Eviews 10 to analyze the data and analyze the impact of factors on the business performance of construction enterprises listed on Vietnam's stock market. The research result shows that firm size and growth rate positively affect business performance while capital structure, receivable management, fixed asset investment, and economic growth have a positive impact on the business performance of construction companies listed on the Vietnamese stock market. Based on this result, the paper also makes recommendations to the Vietnamese construction companies to enhance their business performance.

• 재무관리논총
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• 제2권2호
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• pp.133-169
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• 1995

• 재무관리연구
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• 제21권1호
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• pp.149-181
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• 2004

본 연구는 주식 수익률의 생성과정에 비선형적 특성이 존재하는지를 검정하기 위해서 1980년 1월부터 2002년 5월까지 종합주가지수 일별 수익률과 주별 수익률을 이용하여 실증분석을 실시하였다. 실증분석의 내용은 크게 비선형 종속성에 대한 검정과 비선형 확률적 특성검정 그리고 비선형 결정론적인 카오스검정으로 구분할 수 있다. 비선형적 특성에 대한 분석의 결과는 주식 수익률은 leptokurtic한 비정규분포를 따르며, 수익률의 생성과정이 IID하지 않고 비선형 종속성이 존재하는 것으로 나타났다. 그리고 ARCH류의 비선형 확률모형으로는 주식 수익률의 비선형적 구조를 완전히 설명하지는 못하는 것으로 판단된다. 이는 주식 수익률의 생성과정을 설명하기 위해서 ARCH류의 모형과는 다른 형태의 비선형모형의 도입에 대해 고려할 필요가 있음을 시사하는 것이다. 종합주가지수 수익률에 대한 카오스검정의 결과를 정리하면, 우선 장기기억을 가지는 지속성이 강한 시계열로 편의된 랜덤워크를 따르며, 프랙탈분포하는 것으로 나타났다. 그리고 프랙탈 차원의 근사값인 상관차원(D)이 3과 4사이에 안정적으로 수렴하며, 최대 리아푸노프지수($L_1$)가 양(+)의 값을 가지므로 카오스적 끌개와 초기조건에 민감한 의존성이 존재하는 것으로 나타났다. 이러한 결과들은 카오스시스템의 특성과 부합하는 것으로 주식 수익률의 생성과정이 비선형 결정론적인 카오스과정을 따르는 것으로 판단할 수 있다.

• The Journal of Asian Finance, Economics and Business
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• 제7권9호
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• pp.329-340
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• 2020

This study investigates the effect of capital structure on the financial performance of pharmaceutical enterprises which are listing on Vietnam's stock market. The study builds the regression using ROE as dependent variable and four independent variables, including self-financing, financial leverage, long-term asset and debt to assets ratios. In addition, we use other variables as controlling ones, such as firm size, fixed asset rate and growth. We collect data for the period from 2015 to 2019 of all 30 pharmaceutical enterprises which are currently listing on Vietnam's stock market. The least square regression (OLS) is used to test the effect of capital structure to the firms' financial performance. The analysis results show that the financial leverage ratio (LR), long-term asset ratio (LAR) and debt-to-assets ratio (DR) have positive relationship with firm performance, meanwhile the self-financing (E/C) affects negatively to the return on equity (ROE). Upon the findings we suggest that the Vietnamese government should focus on stabilizing macro environment to create favorable environment for enterprises. And the pharmaceutical enterprises should build more reasonable capital structure with higher debt proportion than equity, diversifying loan mobilization channels such as issuing long-term bonds. Additionally, the firms should expand the scale appropriately to maintain development and ability to pay debts.