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KMID : 0613620210410040072
Health Social Welfare Review
2021 Volume.41 No. 4 p.72 ~ p.87
The Effects of Internet Use on Life Satisfaction in Middle-aged and Older Adults: Analysis Using Propensity Score Matching and Difference-in-Difference Model
Um Sa-Rang

Shin Hye-Ri
Kim Young-Sun
Abstract
The purpose of this study was to analyze the effects of Internet use on middle-aged and elderly people's life satisfaction. To this end, the 3rd (2008) Korea Welfare Panel and 11th (2016) Korea Welfare Panel data were used, and all of the data were answered in 2008 and 2016 and the internet was not used in 2008.
Propensity score matching (1:2) was conducted for 3,262 middle-aged and older adults (as of 2008), and a total of 492 individuals (164 Internet users and 328 non-Internet users) were selected as final subjects for analysis. Afterwards, the effect on internet usage was precisely measured based on the double difference model.
As a result, the effect of using internet as an independent variable (interaction term) had a statistically significant effect on quality of life after controlling for the effect of unobserved time invariant in the panel random effect model. In other words, the use of the Internet has a significant effect on life satisfaction. The results of this study confirmed that the use of information technology such as the Internet contributes to the improvement of life satisfaction. In order to improve the quality of life for the elderly, policy interventions should be strengthened for the use of information technology by the elderly, such as the expansion of information education for the elderly.
KEYWORD
Middle-aged and Older Adult, Internet Use, Life Satisfaction, Propensity Score Matching (PSM), Difference-in-Difference (DID)
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