• Proceedings of the KIPE Conference
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• 2018.07a
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• pp.330-331
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• 2018

본 논문에서는 양극성 저압 직류배전망에서 전압강하 발생 시 에너지저장시스템(ESS)을 이용한 2상 인터리브드 IPOS(Input Parallel Output Series) DC-DC 컨버터 기반의 전압 밸런서를 제안한다. ESS와 직렬로 연결된 전압 밸런서는 입력은 병렬로, 출력은 직렬 구성되어 있으며, 이러한 구성은 한 개의 ESS를 통해 두 개의 배전망을 제어할 수 있다. 제안하는 전압 밸런서는 시뮬레이션을 통하여 타당성을 검증하였다.

• 한국데이터정보과학회:학술대회논문집
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• 2002.06a
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• pp.75-84
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• 2002

This paper compares long-run returns of privatization initial public offerings to those of domestic stock markets of respective countries using a sample of 196 privatization initial public offerings from 39 countries. The evidence indicates that the privatization initial public offerings (IPOs) significantly outperform their domestic stock markets. There are substantial differences in the long-run performance of privatization IPOs depending on the return estimation techniques, however. Evidence indicates that the inference based either on conventional t or on skewness-adjusted t statistics may yield misspecified test statistics. The quality of estimation tends to be improved by simply eliminating the outliers from the sample, especially for the buy-and-hold abnormal return technique.

• Asia-Pacific Journal of Business
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• v.12 no.2
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• pp.97-114
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• 2021

Purpose - The purpose of this study was to examine the effects of privatization of Chinese state-owned enterprises (SOEs) on their initial returns and long-term performance after initial public offering(IPO). Design/methodology/approach - This study used 1,599 Chinese IPO firms, some of which were SOEs. The multivariate regression analyses were implemented to analyze their effects. Findings - First, the privatization of SOEs does not have any statistically significant effect on the initial return of IPO firms. Second, the shareholdings of government prior to IPOs for both privatizing of SOEs and non-privatizing firms and for both exchanges of Shanghai and Shenzhen have a statistically significant positive effect on the initial return of IPO firms. Third, the privatization of SOEs has statistically significant negative effect on the long-term returns of IPO firms. Fourth, the state-shareholdings prior to IPOs have statistically significant negative effects on the long-term return of IPO firms. Fifth, the state-shareholdings of the privatizing SOEs prior to IPOs have statistically significant positive effects on the long-term return of IPO firms. Research implications or Originality - The results imply that the higher shareholdings and ownership of the Chinese government on SOEs reduce the information asymmetry for the investors of IPO shares or maybe due to inefficiency of SOEs prior to IPOs lead to lower offer prices or higher opening prices leading to severe underpricing and relatively lower stock market returns in the long-run both for the privatizing firms and for the higher state-shareholding firms, while both factors interactively improve their long-term stock market returns.

• The Journal of Asian Finance, Economics and Business
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• v.8 no.4
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• pp.317-328
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• 2021

This study aims to determine the factors that affect dividends initiation by initial public offering firms in Malaysia. The ownership structure is examined from a corporate governance theoretical perspective in order to evaluate the impacts of managerial, institutional, and family ownership on the dividend's initiation decision of IPO firms. This study employs a quantitative pooled cross-section of 372 Malaysian IPO companies active during the period of 2002-2013. The number of firms that went public each year varies, thus the pooled cross-section data takes place in this case rather than the panel data. The logistic model was employed to test the proposed hypotheses. The results revealed that the presence of institutional investors in the ownership structure make it more likely for IPO firms to initiate dividends. On the contrary, the presence of a family ownership structure in IPO companies as the controlling shareholder makes these companies less probable to initiate dividends. Managerial ownership was found to have no effect on the decision of initiating dividends by IPO firms. The findings of this study suggest that the existence of institutional and family ownerships are agency cost mitigators, as these ownership types could prompt IPOs firms to initiate dividends to overcome the agency conflicts.

• The Journal of Asian Finance, Economics and Business
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• v.9 no.5
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• pp.409-419
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• 2022

This paper examines the post-IPO price volatility in the first trading days after the IPO of SOEs that carry out equitization, on a sample of 76 IPOs on the Hanoi Stock Exchange (Vietnam) in the period 2013-2018. Oversubscription rate, firm size, issuance size, internal equity ownership, and listing delay are all factors that influence IPO price volatility in a primitive stock market. The results showed that the average initial market-adjusted return for the first three trading days was -11.95%; -9.58% and -7.29% and the level of price volatility is related to the rate of oversubscription and company size. Issuance price, issuance size, internal equity holdings, and listing delay do not seem to contribute significantly to post-IPO share prices. Individual investors based their valuation on information released during and after the IPO. In general, the number of IPOs that yield positive and negative returns in the first trading days is about the same, indicating that the two phenomena of undervaluation and overvaluation still occur in the process of valuing shares of Vietnamese SOEs for IPOs.

• Proceedings of the Materials Research Society of Korea Conference
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• 1998.08a
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• pp.38.1-38
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• 1998

• Proceedings of the Materials Research Society of Korea Conference
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• 1998.08a
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• pp.38.2-38
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• 1998

• 한국디지털정책학회:학술대회논문집
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• 2004.11a
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• pp.25-37
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• 2004

This paper compares long-run buy-and-hold returns of privatization initial public offerings to those of domestic stock markets of respective countries using a sample of 29 privatized telecom initial public offerings from 27 countries. The evidence indicates that the privatization IPOs significantly outperform their domestic stock markets if the returns are equally-weighted while they do not outperform the markets if value-weighted. In addition, this paper analyzes the cross-sectional determinants of long-run buy-and- hold returns of privatized telecom shares. The results indicate that the long-run performance of privatized telecom IPOs is moderately related to the proxies of policy uncertainty or systematic risk while the size of the firm and some market wide variables such as the accounting standard, origin of commercial law, and the corporate governance scheme significantly affect the stock performance of privatized telecom shares.

• The Korean Journal of Financial Management
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• v.13 no.1
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• pp.285-309
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• 1996

Using initial public offerings of 512 UK companies newly admitted to London Stock Exchange between 1985 and 1990, we explored the reason of underpricing of new issues. We particularly examined the underpricing of new issues in terms of signalling hypothesis. We found that there is a positive relationship between the value of the issuing firms and the fraction of equity retained by entrepreneurs. This finding is consistent with Leland and Pyle's model(1977) and the evidence of Downes and Heinkel(1982). We also found a positive association between the firm value and the degree of underpricing. In addition, our empirical evidence revealed that the underpricing of the UK IPOs is positively related to the fraction of equity retained by the original shareholders. Thus, our results support Grinblatt and Hwang's model(1989) which predicts a positive relationship between the value of firm and the degree of underpricing.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2004.04b
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• pp.121-124
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• 2004

The research on the porous silicon having low wafer stress during the oxidation process in IPOS(Isolation by Porous Oxidized Silicon) were carried out. Fine pores with less than 100A of diameter were found in the porous silicon which from p-type Si by electrochemical etching. In this study, it is possible to make the porous silicon with 59% of porosity.