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전경민,이재형,김현표 한국회계정보학회 2023 재무와회계정보저널 Vol.23 No.4
[Purpose] This study analyze the effect of the board diversity on financial reporting process. Specifically, We examine the relationship between the board diversity such as gender, nationality and background and revenue-expense recognition. [Methodology] We analyze the effect of the board diversity on financial reporting by using the ratio of female, foreigner and former government officer on the board. This study was conducted by using gender, nationality and background data in the annual reporting of Korea listed firms over the period from 2006 to 2020. [Findings] The main findings as follow. First, we find that the higher the board diversity, the more significantly matching of revenue and expense, which can be interpreted that firms with diverse board member report timely based on the revenue -expense matching principle. Second, firms with gender and nationality diversity report match the revenue to the expense. These findings are consistent with the results of prior research. [Implications] This study has the following contributions. First, this study is differentiate from prior research in terms of measuring the board diversity using three variables such as gender, nationality and background. Second, we expand the existing research on governance and board by presenting a new aspect of board diversity as a factor affecting the revenue-expense matching, and presents the timely results in a recently situation where various stockholders’ demands for board diversity of listed firms are increasing.
이사회 내 여성 비중이 비대칭적 원가행태에 미치는 영향
전경민 한국경영컨설팅학회 2022 경영컨설팅연구 Vol.22 No.2
This paper examines the impact of female director on the asymmetrical cost behavior. Using the 3,769 observations that are listed on the KOSPI(Korea Composition Stock Price Index) over the period from 2009 to 2018. This study find that there is a negative association between female director on the board and cost stickiness, and this relation is more pronounced in firms with higher agency costs. To check the robustness of the results, I use the Heckman two-stage model(1979) to control the potential endogeneity issues and the sample section bias and find similar results. The results of this study are consistant with prior research that reported female directors are more likely to make decision conservative and independently. It can be inferred that these characteristics of female director affect on the asymmetrical cost behavior. This study have some contributions to the extant literature. First, we extend to provide the empirical evidence the relation between female director and cost behavior by using the hand-collected data. Our results are in a timely manner and provide useful implications to market participants and policy makers who set up the quotas for women on boards. 선행연구들에 따르면 여성 임원은 남성 임원에 비해 더욱 강한 위험회피 성향 및 보수적인 태도를 갖는다. 이러한 선행연구의 관점에 근거하여, 본 연구는 위험 회피적이며 보수적인 성향을 갖는 여성 임원이 이사회에 존재하는 경우 판매관리비의 비대칭적 원가행태에 어떠한 영향을 미치는지를 분석하였다. 분석결과, 여성 임원과 판매관리비의 비대칭적 원가행태는 음(-)의 관계가 있는 것으로 나타났으며, 이러한 관계는 대리인 문제(agency problem)가 큰 기업에서 더욱 뚜렷하게 나타났다. 이는 이사회 내 여성 임원이 있는 경우 여성 임원의 신중함과 보수성향이 원가의 하방경직성을 감소시키는 것으로 해석할 수 있다. 행동재무학적 측면의 남녀 간 투자성향의 차이를 기업의 원가행태로 확장시켜, 이사회 내 여성과 비대칭적 원가행태의 관계를 살펴본 본 연구의 공헌점과 차별점은 다음과 같다. 첫째, 본 연구는 이사회 내 여성 임원의 자료를 직접 수집(hand-collection)하고 이에 대한 연구결과를 제시함으로써 이사회 구성에 관한 기존연구를 확장하였다는 점에서 그 의의를 찾을 수 있다. 둘째, 최근 기업의 여성 임원의 비율이 증가하고, 이들의 활동영역 또한 점차 확대되고 있는 추세에 여성 임원의 역할에 대한 실증적 증거를 제시하였다는 점에서 시의적절한 결과를 보여주고 있다. 마지막으로, 본 연구의 결과는 아직 남성 임원에 비해 낮은 여성 임원 비율을 고려할 때 다양한 분야에서 능력 있는 여성 인재의 활용과 여성 임원 할당제의 법제화를 위한 여러 이해 관계자 및 외부 투자자들에게도 유용한 시사점을 제시할 것으로 기대된다.
점유면적과 유형 분석을 통한 오피스 어메니티 공간 연구 - Google Office를 중심으로 -
전경민,이소영 한국퍼실리티매니지먼트학회 2018 한국퍼실리티매니지먼트학회지 Vol.13 No.1
Office layout and workplace characteristics are closely related to workplace culture. However, little is known about types of office amenities, interdependent relationship between of physical office environment and amenities and organizational culture. The purpose of this study is to investigate the types of office amenities and what area portion of office amenities provided in the workplace cases. The types of office amenities were classified according to BOMA standards and IFMA definitions and the types of office amenities was proposed. Among the total of 16 offices Fortune awarded, Google office cases were selected as workplace for adhocracy organizational culture. Amenities areas are commonly used for food and communication. The amenities areas are used for multi purposes and the edges and boundaries of some amenities are not clear. Approximately 40% of the total space were allocated for amenities in the case office environments.
CEO’s Overconfidence and Revenue-Expense Matching Levels
전경민,신영직,장정윤 한국회계정책학회 2019 회계와 정책연구 Vol.24 No.1
[Purpose]This paper investigates the relation between CEO’s overconfidence and revenue-expense matching. Specifically, we examine whether firms with overconfident CEOs have different structures between revenue-expense matching. [Methodology]The sample data are taken from Compustat, CRSP, and the Execucomp database for the period from 1992 to 2014. The period starts in 1992 because the data required to measure overconfidence are available in Compustat after 1992. Our final sample includes 30,486 firm-year observations after excluding firm-year observations without sufficient information to measure each independent variable. [Findings]We find that CEOs who are overconfident exhibit poor matching between revenue and expenses, and that firms with overconfident CEOs do so by deferring the recognition of expenses in a more delayed manner than those without overconfident CEOs. However, additional analysis reveals that firms with good corporate governance weaken the negative relationship between overconfident CEOs and revenue-expense matching. [Implications]We extend prior studies on the overconfident literature by showing that sound governance mechanisms help moderate managerial decisions of the overconfident top executive in recognizing revenue and expenses.
전경민,임재영,김성현,조현서,정대식,김종원,송영기,김경수 한국정보처리학회 2025 정보처리학회 논문지(KTSDE) Vol.14 No.4
최근 온라인 광고의 급성장으로 인해 광고비 분석과 예측은 기업의 마케팅 전략 수립에 있어 필수적인 요소로 자리 잡고 있다. 광고비는 기업이자사의 상품이나 서비스를 홍보하기 위해 지출하는 핵심적인 마케팅 비용 중 하나로, 광고 캠페인의 효율성을 극대화하고 각 광고주 간 입찰 경쟁에서우위를 점하기 위해 그 중요성이 더욱 부각되고 있다. 본 연구에서는 다양한 도메인에서 사용하는 키워드와 해당 키워드에 대한 광고비를 예측하는머신러닝 기반 회귀 모델을 제안한다. 이 연구에서 사용된 데이터는 크롤링 기술을 활용하여 수집된 키워드 데이터, 네이버 API(ApplicationProgramming Interface)를 통해 추출한 광고비 예측 데이터, 그리고 광고대행사 데이터를 포함한다. 이를 통해 각 키워드의 광고비를 효과적으로예측할 수 있는 모델을 개발하고자 하였다. 연구 과정에서 LightGBM(Light Gradient Boosting Machine)을 기반으로 한 머신러닝 회귀 모델을구축하였으며, MAE(Mean Absolute Error)를 성능 평가 지표로 사용하였다. 최종적으로 MAE 250 이하의 우수한 예측 성능을 달성하였다. 따라서마케터들이 본 연구에서 제시되는 데이터를 사용하여 광고주와 광고대행사 간의 효율적인 의사결정을 지원할 수 있을 것으로 기대된다. Due to the recent rapid growth of online advertising, analysis and prediction of advertising costs are becoming essential elementsin establishing a company's marketing strategy. Advertising costs are one of the core marketing costs that companies spend to promotetheir products or services, and their importance is becoming more prominent in order to maximize the efficiency of advertising campaignsand to gain an edge in the bidding competition between advertisers. This study proposes a machine learning-based regression modelthat predicts keywords used in various domains and advertising costs for those keywords. The data used in this study include keyworddata collected using crawling technology, advertising cost prediction data extracted through Naver API(Application Programming Interface),and advertising agency data. Through this, we tried to develop a model that can effectively predict the advertising cost of each keyword. In the research process, a regression model based on the LightGBM(Light Gradient Boosting Machine) was constructed, and the MAE(MeanAbsolute Error) was used as a performance evaluation index. Finally, an excellent prediction performance of less than 250 MAE wasachieved. Therefore, it is expected that marketers will be able to use the data presented in this study to support efficient decision-makingbetween advertisers and advertising agencies.