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Attributes of Social Networking Services : A Classification and Comparison
Jeong Woong Sohn(손정웅),Jin Ki Kim(김진기) 한국산업경영시스템학회 2018 한국산업경영시스템학회지 Vol.41 No.1
Since a social networking service (SNS) isconsidered as an effective means to communicate and interact with customers, compa-nies are trying to utilize SNS effectively. There is a lack of theory relating to the attributes of SNS. This study aims to investigate the attributes of SNS to classify SNS. Based on the social network theory, and previous studies on internet, blog, homepage, communication attributes, this study proposes the seven attributes to classify SNS: interaction, communication, entertainment, information, sharing, intimacy and connection. A pre-test, a pilot test and a main test are conducted. In the main test, 239 SNS users are participated. Through a factor analysis this study verifies the seven attributes of SNS. An analysis of variance with multiple comparisons of Scheffé method identifies that three attributes, interaction, communication and connection, are found to play significant roles to differentiate SNS. Looking at the overall mean values of the SNS by attribute, interaction, sharing, entertainment, intimacy and communication were relatively high in Facebook. Facebook showed higher values in attributes of interaction, sharing, entertainment, intimacy and communication. Twitter shows the relatively high scores for information and connection. Regarding interaction, Facebook shows higher scores than Twitter and Cyworld. For connection, Cyworld showed a significantly lower score than Twitter and Facebook. Cyworld was separated from the others in the light of communication. Cyworld is relatively weak in communication as it is limited to the message exchanges. The results will help in identifying major attributes for each SNS and classifying SNS.
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손정웅 ( Jeong-woong Sohn ) 한국항공경영학회 2021 한국항공경영학회지 Vol.19 No.6
2019년까지 우리나라뿐만 아니라 전세계 항공운송시장은 지속적으로 성장했다. 우리나라 항공여객 시장의 성장은 항공자유화, 저비용항공사 진입 등으로 공급확대와 가격하락으로 인한 것으로 분석된다. 저비용항공사들은 2010년 2.3%에서 2019년 29.5%로 지속적으로 시장을 가져오며 대형항공사와 외국 항공사의 점유율을 하락시키고 있다. 국제 노선별 시장 점유율은 일본, 중국 순이며, 지역으로는 아시아 지역이 가장 큰 점유율을 가지고 있다. 이중 국적 항공사는 전체 149개 노선 중 중복 취항 도시 8개 항공사가 8개의 도시에 중복(삿포로, 나리타, 간사이, 후쿠오카, 타이페이, 홍콩, 다낭, 하노이)으로 취항하고 있다. 8개의 노선 중 타이페이 노선을 제외한 나머지 노선은 항공자유화 지역이다. 2018년까지 8개의 항공사(대형항공사 2개, 저비용항공사 6개)가 유지되었으나 2019년 3개의 항공사가 진입하면서 11개의 국적 항공사가 취항 예정이며, 국제노선에서 중복 취항하는 항공사가 더 많아지고 경쟁구조는 더 심화될 것으로 보인다. 따라서 본 연구에서는 2019년까지 국제항공시장의 경쟁상황을 분석 및 평가하기 위해 허핀달-하쉬만, 시장 집중도 비율을 활용하여 분석하였다. 분석 결과는 다음과 같다: 1) 국가 간의 비교에서 우리나라는 중국 다음으로 경쟁 강도가 높은 국가로 분석되었고 2) 우리나라 국가 노선 단위에서는 일본, 베트남, 필리핀 국가의 노선, 공항 노선 단위에서는 일본(5개: 간사이, 나리타, 후쿠오카, 삿포로, 오키나와), 베트남 1개(다낭), 대만 1개(타이페이)가 경쟁이 심화된 노선으로 분석되었다. 성숙된 산업에서 폭넓은 경쟁은 새로운 차별화 기회와 경쟁력을 가져다줄 수 있다. 그러나 일부 집중된 경쟁으로 항공사들의 경쟁은 모두 하락하게 될 것이며, 결국 항공산업의 성장이 한계가 있을 수 있다. 향후 경쟁상황 속에서 항공사 간에 합병 된다면, 다른 형태의 경쟁상황으로 변화될 것이다. 본 연구는 국제항공시장의 경쟁 체계 개선방안, 노선 배분 수립 기준 등 항공정책의 기초자료로 활용될 수 있을 것이다. Global air transport market has continued to grow until 2019. The growth of air passenger market of the Republic of Korea is analyzed to be attributable to the expansion of supply and price reduction including open skies and low cost carriers entry. Low cost carriers continue to bring the market from 2.3% in 2010 to 29.5% in 2019, lowering the share of full service carriers and foreign airlines. The market share by international route is in the order of Japan and China, and Asia has the largest share in the region. Among them, eight of the 149 routes are operated in duplicate (Sapporo, Narita, Kansai, Fukuoka, Taipei, Hong Kong, Danang, and Hanoi). Of the eight routes, the rest of the routes except for the Taipei route are aviation liberalization region. Eight airlines existed until 2018 (including two Full service carriers and six low cost carriers) and three new airlines were established in 2019, totaling 11 national airlines to enter into service. In addition, airlines that operate same international flights are expected to increase, thereby intensifying the competition. Therefore, this study used HHI(Herfindal-Hershman Index) and CR(Concentration Ration) to analyze and evaluate the competition of the international air transport market until 2019. As the result of the analysis, the Republic of Korea recorded to have higher competition intensity following China among the inter-country comparison; and air routes with intense competition among national routes were Japan, Vietnam, and the Philippines, whereas airport routes with strong competition were analyzed to be Japan (5: Kansai, Narita, Fukuoka, Sapporo and Okinawa), Vietnam (1: Da Nang) and Taiwan (1: Taipei). In a mature industry, competition can bring new differentiation opportunities and competitiveness for each competitor. However, in some concentrated competition, all airlines’ competition will fall, and the growth of the aviation industry may be limited. If the merger between airlines, two large airlines of the Republic of Korea, takes place in the future, the competition will worsen in other form, and thus, this study is expected to be utilized for the basic data of the aviation policy including the improvement of competition of global air market and the establishment of standards of air route allocation.
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공항과 지역경제 발전 간의 연계효과 분석: 대구국제공항 사례를 중심으로
최남희 ( Choi Nam-hee ),전병윤 ( Jeon Byung-yun ),손정웅 ( Sohn Jeong-woong ),이만형 ( Lee Man-hyung ) 한국시스템다이내믹스학회 2020 한국시스템다이내믹스 연구 Vol.21 No.3
This study tries to develop and apply airport and urban and regional economic development linkage models by taking the example of Daegu International Airport where domestic and international passengers are rapidly increasing these days. This study also proposes strategies for strengthening the competitiveness of Daegu International Airport and its derivative regional economic development strategies. The study confirmed that numerous factors in the four-way sector such as airport capacity, airline operations, passenger and logistics demand, and regional factors (inbound and outbound) formed a close complementary relationship. In addition, the analysis of the causal map revealed that many factors led to fundamental and structural limitations of Daegu International Airport. According to the simulation, extreme capacity shortage and congestion that caused a limit to growth, and a sharp increase in passenger demand only could cause problems with airport safety and service levels. The simulation result also revealed that air demand could also be abruptly impacted by exogenous factors. This would result in endogenous limitations that cannot develop the local economy fundamentally. Capacity expansion at Daegu International Airport may contribute to easing temporary capacity limitations, but it seems difficult to overcome the limitations of ultimate capacity constraints in the short run.
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