메시징서비스의 소비자잉여 추정Estimating Consumer Surplus From Using Messaging Services
- Other Titles
- Estimating Consumer Surplus From Using Messaging Services
- Authors
- 김성준; 윤충한
- Issue Date
- Mar-2024
- Publisher
- 정보통신정책학회
- Keywords
- 메시징서비스; 카카오톡; 시간집약적 서비스; 패널모형; 소비자잉여; messaging service; KakaoTalk; time intensive service; panel model; consumer surplus
- Citation
- 정보통신정책연구, v.31, no.1, pp 101 - 117
- Pages
- 17
- Indexed
- KCI
- Journal Title
- 정보통신정책연구
- Volume
- 31
- Number
- 1
- Start Page
- 101
- End Page
- 117
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/118927
- DOI
- 10.37793/ITPR.31.1.5
- ISSN
- 1229-5981
- Abstract
- 우리가 하루에도 시시때때로 요긴하게 이용하는 카카오톡과 같은 메시징서비스는무료 서비스이기 때문에 경제적 가치가 얼마인지, 이용자에게 소비자잉여가 얼마인지를 추정하기 어렵다. 메시징서비스의 이용으로부터 금전적 비용은 없고 시간비용만 발생하므로 가격이 명확한 일반적인 재화와 서비스에 대한 소비자잉여 추정 방법론을 가격이 없는 서비스에 그대로 적용하기는 어렵다. 이 연구에서는 Goolsbee & Klenow (2006) 연구의 한계비용이 0인 시간집약적 서비스에 대한 사회적 잉여를추정하는 방법론을 그대로 따라 메시징서비스의 소비자잉여를 추정하였다. 무료이며 시간집약적 서비스인 메시징서비스가 창출하는 소비자잉여를 메시징서비스를이용하는 여가시간의 기회비용인 임금으로 추정한 점이 방법론의 핵심이다.
2018-2022년 미디어패널조사 의 미디어 다이어리 에 기록된 메시징서비스 이용데이터와 인구특성 자료들을 수집하여 분석하였다. 패널모형 추정결과 소득이 있는메시징서비스 이용자의 소비자잉여는 1인당 한 달에 약 45,000원인 것으로 나타났다. 전체 카카오톡 이용자 중 소득이 있는 이용자의 소비자잉여를 추정하면 연간최대 12조원에 이르는 것으로 나타났다.
The economic value of messaging services like KakaoTalk, which we frequently utilize in our daily lives, is challenging to estimate due to the nature of these services being free. Since messaging services incur no monetary cost but only involve a time cost, applying traditional consumer surplus estimation methodologies used for goods and services with clear prices is difficult. Goolsbee & Klenow (2006) estimated the social welfare of internet services by collecting information on the actual time consumers spent on service utilization, instead of relying on surveys of willingness to pay for internet services. They considered the opportunity cost of leisure time spent by individual consumers as their wage and estimated the consumer surplus generated by a specific service by valuing the opportunity cost of the time used during leisure hours. Previous studies from abroad have estimated consumer surplus in time-intensive services such as the internet, Google, YouTube, social media, and automotive navigation, where marginal costs, aside from fixed costs, are very low but considerable time is expended. Similarly, preceding research in Korea has estimated consumer surplus in activities like radio listening, TV viewing, and VOD consumption. In this study, we adopted the methodology of Goolsbee & Klenow (2006) to estimate the social surplus generated by time-intensive services with zero marginal costs, applying it to messaging services. The key aspect of the methodology lies in estimating the consumer surplus created by messaging services, which are both free and time-intensive, by using the opportunity cost of leisure time, measured in wages. We collected and analyzed data Media Diary in the Media Panel Survey from 2018 to 2022, including messaging service usage data and demographic information. The estimated consumer surplus of messaging services per user per month was found to be 45,000 Korean Won. Extrapolating this estimate to the entire user base of KakaoTalk suggests that messaging services generate a consumer surplus of up to 12 trillion Korean Won annually.
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