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All Journal Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Civil Engineering Dimension
Karina Agustin
Petra Christian University
Civil Engineering, Building, Construction & Architecture Industrial & Manufacturing Engineering

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Impact of an Ageing Society on Healthcare Expenditure of National Health Insurance in Taiwan Karina Agustin; Shou-Yan Chou
Jurnal Teknik Industri Vol. 21 No. 2 (2019): December 2019
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (473.659 KB) | DOI: 10.9744/jti.21.2.49-56

Abstract

The increase in healthcare expenditure always becomes an issue considered by the National Health Insurance (NHI) program in Taiwan. Accordingly, analyzing the root cause is a significant first step in dealing with this issue. This study hypothesized that the greying population in Taiwan is the main reason that devours a vast health care expenditure. Samples of the population in Taiwan's National Health Insurance databases together with age-expenditure profile analysis and decomposing approach of the components of healthcare expenditure will analyze the impact of population ageing and estimate the contributions of population ageing shifting to NHI's expenditure in Taiwan.  The result could be considered for policymakers and the government to overcome this issue in Taiwan.
A Hybrid AHP-QRVE Model for Consistency Verification in Property Valuation Karina Agustin; Kenneth Elbert; Susan Widjojo; Fernando Fernando; Hanijanto Soewandi
Civil Engineering Dimension Vol. 28 No. 2 (2026): SEPTEMBER 2026
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/ced.28.2.291-300

Abstract

The conventional Quantitative Rating Value Estimation (QRVE) method for building valuation often introduces bias because it relies heavily on subjective Likert-scale ratings. This study aims to address the inherent weaknesses of Likert scales used in the QRVE method by mitigating the threshold ambiguity and appraiser cognitive inconsistencies. This study proposes a hybrid methodology by integrating the pairwise comparison matrix from the Analytic Hierarchy Process (AHP) into the QRVE framework. The mathematical foundation of AHP transforms absolute assessments into relative ones, with the Consistency Ratio (CR) serving as a verification metric through the induced matrix  (  represents the total number of evaluated properties (including the subject property). The analysis results show that the AHP-QRVE integration successfully detects valuation errors and inconsistencies between comparable objects when applying conventional Likert scales. Through numerical simulations, this method has provided more objective assessment outputs, even greater audit transparency for the Public Appraisal Services Office.
Co-Authors Fernando Fernando Hanijanto Soewandi Kenneth Elbert Shou-Yan Chou Susan Widjojo