• Title/Summary/Keyword: IPOs

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A Study on the EZW algorithm using IS symbol (IS 심볼을 이용한 EZW 알고리듬의 개선에 관한 연구)

  • 서영천;추형석;조상진;안종구;이태호
    • Proceedings of the Korea Institute of Convergence Signal Processing
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    • 2000.12a
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    • pp.61-64
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    • 2000
  • EZW 알고리듬을 수행하는 동안 네 가지의 심벌 (POS, NEG, IZ, ZT)을 사용하게 된다. 하지만 POS 또는 NEG 심벌을 가지는 계수들의 하위밴드의 계수들이 모두 ZT 심벌을 가질 경우 도미넌트 계수열을 만드는데 있어서 데이터의 낭비가 심하다. 이러한 단점을 보완하기 위해 여섯개의 심벌(POS, NEG, IPOS, INEG, IZ, ZT)을 이용한 알고리듬이 제안된 바 있다. 하지만 경우에 따라서 4개의 심벌을 이용한 본래의 알고리듬보다 왜곡이 심한 경우가 간혹 발생하게 된다. 본 논문에서는 네 개의 심볼(LS, IS, IZ, ZT)을 이용한 새로운 알고리듬을 제안한다.

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Design of an Input-Parallel Output-Parallel Multi-Module DC-DC Converter Using a Ring Communication Structure

  • Hu, Tao;Khan, Muhammad Mansoor;Xu, Kai;Zhou, Lixin;Rana, Ahmad
    • Journal of Power Electronics
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    • v.15 no.4
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    • pp.886-898
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    • 2015
  • The design feasibility of a micro unidirectional DC transmission system based on an input-parallel output-parallel (IPOP) converter is analyzed in this paper. The system consists of two subsystems: an input-parallel output-series (IPOS) subsystem to step up the DC link voltage, and an input-series output-parallel (ISOP) subsystem to step down the output voltage. The two systems are connected through a transmission line. The challenge of the delay caused by the communication in the control system is addressed by introducing a ring communication structure, and its influence on the control system is analyzed to ensure the feasibility and required performance of the converter system under practical circumstances. Simulation and experiment results are presented to verify the effectiveness of the proposed design.

IPO/M&A Exits by Venture Capital in India: Do Agency Risks Matter?

  • Joshi, Kshitija;Chandrashekar, Deepak
    • Asian Journal of Innovation and Policy
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    • v.7 no.3
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    • pp.534-563
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    • 2018
  • Venture Capital Firms (VCs) encounter severe information asymmetry risks at almost every stage in their investment lifecycle. This paper explores the agency risks arising from information asymmetry during the stage of exits by VCs from the funded companies in their portfolio and how that impacts the incidence of specific types of type of exits (IPOs/M&As). In this empirical study, by using the data on IPO and M&A exits from venture capital-funded companies, we show how the ability of prospective buyers to better resolve agency risks is directly correlated with the incidence of the above exit types. Using the technique of logistic regression, we demonstrate that factors such as syndication, specialization focus of the VC firm (in terms of stage and sector) and the level of its social capital (proxied by its age and experience) drive the success rate of exits. This is one of first studies in context of exits from VC funded companies in the Indian context.

Overreaction Hypothesis and Aftermarket Performance of the U.K. IPOS (과잉반응가설과 영국 최초공모주의 장기성과 분석)

  • Lee, Ki-Hwan
    • The Korean Journal of Financial Management
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    • v.12 no.1
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    • pp.187-210
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    • 1995
  • 본고(本槁)에서는 영국기업의 최초공모주를 이용하여 최초공모주(最初公募株) 시장(市場)에 나타나는 3가지 이례현상(異例現象) 즉 단기(短期)에 있어 최초공모주의 저가발행현상(低價發行現象), 장기(長期)에 있어 최초공모주의 저성과현상(低成果現象) 그리고 hot issue market 존재를 분석하고 있다. 이러한 분석은 주로 미국(美國) 발행시장(發行市場)을 대상으로 이루어져 왔는바, 시장의 효율성 측면에서 비슷한 수준을 유지하고 있는 영국(英國)의 증권시장(證券市場)에서도 이러한 현상이 나타나는지를 조사해보는 것은 의미가 있을 뿐만아니라 이러한 현상이 다른 시장에서도 통상 나타나는 현상인지를 밝히는데도 의의가 있다고 보여진다. 영국(英國)의 최초공모주(最初公募株) 시장(市場)에서의 3가지 이례현상(異例現象)을 분석하기 위해 우선 거래 첫날의 시장조정수익률(市場調整收益率)을 계산하여 신규공모주가 시장가격에 비해 할인(割引)되어 발행되는지를 조사한 결과 시장가격에 비해 12.88% 정도 할인발행되고 있음이 밝혀졌다. 단기의 저가발행현상(低價發行現象)과는 달리 신규공모주가 시장에 상장된지 3년이 경과한 후 추정된 장기투자수익률(長期投資收益率)은 12.05%의 부(負)의 누적초과수익률(累積超過收益率)을 시현하고 있는데 이는 과잉반응가설(過剩反應假說)에 의해 설명되고 있다. 끝으로 1987년의 최초공모주가 다른 연도에 비해 다섯배 정도로 저가발행되고 있음을 밝힘으로써 영국발행시장(英國發行市場)에도 hot issue market 현상이 나타남을 분석하고 있다.

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The Relationship Between Corporate Governance and Underpricing: A Case Study in Ho Chi Minh Stock Exchange

  • TRAN, Khang Hoang;NGUYEN, Diep Thi Ngoc;KNAPKOVA, Adriana;ALIU, Florin
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.7
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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.

A Case Study of Valuation Considering the Characteristics of E-Commerce Distribution: Focusing on the Coupang IPO

  • Ilhang SHIN;Inkyung YOON;Hansol LEE
    • Journal of Distribution Science
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    • v.21 no.4
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    • pp.91-101
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    • 2023
  • Purpose: Research on the valuation of the e-commerce distribution companies is necessary because the traditional valuation methodology cannot be easily applied. Considering the valuation and initial public offering (IPO) of Coupang, Korea's leading e-commerce company, this study contributes to the literature by examining various valuation methods applicable to corporate valuation in the e-commerce industry and provides their implications. Research design, data and methodology: This case study investigates research, analyst reports, news articles, and magazines to review the valuation methods for companies in the e-commerce industry and analyzes the case of the Coupang IPO. Results: A valuation method that considers growth potential, which is important for companies in the e-commerce industry, is used for IPOs. This led to Coupang's successful IPO on the New York Stock Exchange despite its accumulated losses. However, the continued price decline since listing suggests that Coupang's valuation should have considered more factors. Conclusions: This study provides guidelines for the valuation of companies in the e-commerce industry, which eventually improves the overall industry. Moreover, this study provides directions for improving the valuation methods for e-commerce firms.

The Effect of Banking Relationships on IPO Underpricing : Evidence from Korea (은행과의 관계가 최초공모주 가격결정에 미치는 영향에 관한 연구)

  • Park, Kwang-Woo;Limb, Seong-Joon;Sung, Sang-Yong
    • The Korean Journal of Financial Management
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    • v.23 no.1
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    • pp.135-163
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    • 2006
  • Using a unique data set from a sample of 343 IPOs during the period from January 2001 to September 2003 in the KOSDAQ stock market, this paper investigates how a firm's pre-IPO relationship with a bank affects the firm's IPO underpricing phenomenon. Contrary to the findings by James and Wier (1990) using the U.S. data, we find no evidence that a pre-IPO banking relationship can help reduce IPO underpricing. On the other hand, we find that firms without pre-IPO banking and venture capitalist relationship have the smallest abnormal returns. Our results suggest that the KOSDAQ market participants positively perceive firms with pre-IPO banking and venture capitalist relationship as good quality firms and demand more issues when they go public. It also suggests that in the Korean IPO market, there has been over demand for issues of firms, which have had pre-IPO relationships with banks and venture capitalists.

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The Impact of the Certification Role of Venture Capitalists on IPOs in the KOSDAQ (벤처기업공개와 벤처캐피탈리스트의 역할 분석)

  • Hur, Nam-Soo;Yoon, Byung-Seop;Lee, Ki-Hwan
    • The Korean Journal of Financial Management
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    • v.19 no.1
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    • pp.153-181
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    • 2002
  • 본 논문은 1999년 1월부터 2000년 12월까지 코스닥증권시장에 등록한 벤처기업의 IPO를 대상으로 발행시장에서 벤처캐피탈리스트의 역할을 살펴보고 있다. 특히 미국의 발행시장에서는 벤처캐피탈리스트가 투자한 기업이 조기에 공개되는 현상이 나타나는 것으로 보고되고 있는 바, 우리나라에서도 이러한 현상이 존재하는지를 실증적으로 조사하고 있다. 코스닥증권시장에 등록한 벤처기업의 IPO를 대상으로 발행시장에서 벤처캐피탈리스트의 역할에 관한 우리의 연구 결과는 다음과 같다. 첫째, 벤처기업과 비벤처기업의 초기 초과수익률의 차이분석에서, 벤처기업은 $AR_1$에서 할인 발행의 정도가 적어 Megginson-Weiss(1991)의 결과와 유사한 것으로 나타났지만, $AR_2$에서 발행가격 결정시 고려하지 못하는 비계수적 환경요인 등 미래기대수익에 대한 일반투자자의 평가가 호의적으로 나타나 발행회사의 입장에서는 할인발행의 정도가 큰 것으로 나타났다. 이는 이기환 임병균 최해술(1998), 장상수 길재욱(2000) 등의 연구와 유사한 결과를 보이고 있다. 둘째, 벤처캐피탈리스트의 명성에 따라 초기 초과수익률에 차이가 있었다. 즉, KTB지원기업의 초기 초과수익률이 낮았다. 셋째, 벤처캐피탈리스트의 보유지분을 변동에 대한 차이는 IPO전 평균보유지분율은 비KTB가 높았으나 공개 후 평균보유지분율은 KTB가 높았다. 이때 보유지분을 변동이 적은 KTB 지원기업의 초기 초과수익률이 낮았다. 특히 업력과 총자산의 규모가 할인발행을 줄이는 역할을 하는 것으로 나타났다. 업력은 Muscarella-Vetsuypens(1989)의 연구와 일치하고 있다. 넷째, 2개 이상의 벤처캐피탈리스트로부터 공동으로 투자받은 벤처기업의 초기 초과수익률이 하나의 벤처캐피탈로부터 단독으로 투자받은 벤처기업의 초기 초과수익률보다 낮았다. 그러나 통계적 유의성은 없었다. 다섯째, IPO까지 소요기간의 차이가 있는지에 대한 분석에서 비KTB지원기업이 보다 빨리 공개되고 있어 조기업적과시현상(grandstanding)을 보였다. 이는 Gompers(1996)의 연구와 일치한다. 여섯째, 등록주선인의 시장점유율에 차이가 있는지를 분석한 결과, KTB가 투자한 벤처기업 등록주선인의 평균시장점유율이 낮았다. 그러나 통계적 유의성은 없었다.

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Long-Run Performance from Korean Equity Carve-Outs : Additional Evidence (분리공모를 통한 구조조정의 성과 : 추가분석)

  • Kim, Seok-Chin;Byun, Hyun-Soo
    • The Korean Journal of Financial Management
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    • v.20 no.1
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    • pp.331-339
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    • 2003
  • We investigate long-run relationships between industry relatedness, operating performance, and stock performance after equity carve-outs(ECO). For homo-industry ECOs, 12-month CAR of subsidiary firms is 26.52% and significantly positive at the 5% level and BHAR is 22.19%. For hetero-industry ECOs, subsidiary 12-month CAR and BHAR are 35.14% and 39.64%, respectively, which are significant at the 1% level. On the other hand, long-run performance of parent firms is insignificant for any sub-sample. Excess operating performance of subsidiaries is significantly positive at the first year and insignificant thereafter. The lower the offering ratio is and the better the operating performance is, the better the subsidiary stock performance is. Unlike IPOs and SEOs, shareholders of subsidiaries benefit from ECOs and parent stocks do not underperform. Hetero-industry ECOs improving corporate focus are more effective restructurings than homo-industry ECOs.

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The Association between Underwriter Lockup and KOSDAQ IPO Initial Returns (매각제한제도와 KOSDAQ 공모주 상장초기 수익률의 관계)

  • Lee, Jong-Ryong
    • The Journal of Small Business Innovation
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    • v.19 no.4
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    • pp.41-52
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    • 2016
  • This paper examines the effect of unique underwriter lockup on the initial returns of an initial public offering (IPO) in the Korean Securities Dealers Automated Quotation (KOSDAQ). Underwriter lockup induces underwriters to underprice IPOs and stabilize aftermarket prices. The inducement is explored with respects to the mixtures of distributions of the initial returns consistent with underpricing and stabilization. Whether the inducement is meaningful when other factors are controlled is also explored. These explorations provide evidence that underwriter lockup leads to more positive average initial returns in the three aftermarket months.

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