Korean Journal of Policy Studies

Graduate School of Public Administration, Seoul National University

Korean J. Policy Stud. 2016; 31(3):119-143

pISSN: 1225-5017, eISSN: 2765-2807

Article

The Substitution Effect of Teenagers’ Smart Phone Use on Traditional Media Use

In Young Hwang¹, J. Hun Park²

¹In Young Hwang is a Ph.D. candidate in the Graduate School of Public Administration at Seoul National University, Korea. E-mail: smarthiy@naver.com.

²J. Hun Park, is a professor in the Graduate School of Public Administration and adjunct researcher of the Korea Institute of Public Affairs at Seoul National University, Korea. E-mail: dearpark@snu.ac.kr.

^*Corresponding Author : E-mail: dearpark@snu.ac.kr.

Â© Copyright 2016 Graduate School of Public Administration, Seoul National University. This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Received: Oct 11, 2016; Revised: Oct 22, 2016; Revised: Nov 17, 2016; Accepted: Nov 20, 2016

Published Online: Dec 31, 2016

Abstract

This study explores whether teenagers’ traditional media use time has been affected by smartphone use time. Drawing on the Korean Media Panel Survey from 2011 to 2014, we specify two models—a two-stage least squares (2SLS) and a two-stage least squares with individual fixed effects (2SLS-FE)— and compare the estimates. The estimates from the 2SLS model show that teenagers’ smartphone use time has a substitution effect on book reading time, computer use time, and TV watching time, while the estimates from the 2SLSFE model show that teenagers’ smartphone use time has a substitution effect on teenagers’ book reading time and computer use time but no significant effect on their TV watching time.

Keywords: media substitution; smartphones; teenagers; instrumental variables; fixed effects