Journal Description

The Indonesian Actuarial Journal (IAJ) is published by the Society of Actuaries of Indonesia (Persatuan Aktuaris Indonesia). It is a journal dedicated to the development of actuarial science. It covers both theoretical and applied mathematical methods.


The boundaries of actuarial mathematics are defined by the area of application rather than the uniformity of methods and techniques. Therefore, a paper of interest to the Indonesian Actuarial Journal (IAJ) may have its theoretical basis in actuarial science, probability theory, statistics, operations research, numerical analysis, data science, mathematical economics, or any other area of applied mathematics. The main criterion is that the paper should have specific relevance to actuarial applications.


The Indonesian Actuarial Journal (IAJ) is published two times a year, in July and December.

Current Issue

Vol. 1 No. 1 (2025): Indonesian Actuarial Journal

Published: 5 August 2025

Articles

Analysis of the Health Social Security Administration (BPJS Kesehatan) Claim Amount using Random Forest Regression

Indah Gumala Andirasdini (1), Desta Saputra (2), Muklas Rivai (3), Septia Eka Marsha Putra (4)
(1) Actuarial Science Department, Science Faculty, Institut Teknologi Sumatera, Indonesia ,
(2) Actuarial Science Department, Science Faculty, Institut Teknologi Sumatera, Indonesia ,
(3) Actuarial Science Department, Science Faculty, Institut Teknologi Sumatera, Indonesia ,
(4) Physics Engineering Department, Industrial Technology Faculty, Institut Teknologi Sumatera, Indonesia
1-8
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189

Advancing Sharia Insurance Product for Natural Disaster Risks: A Collective Risk Model Approach

Trecy Elisabet Tioralina Saragih (1), Alfonsius Lintang (2), Chintya Luminar Sinaga (3)
(1) Department of Mathematics, Universitas Brawijaya, Malang, Indonesia ,
(2) Department of Mathematics, Universitas Brawijaya, Malang, Indonesia ,
(3) Department of Mathematics, Universitas Brawijaya, Malang, Indonesia
9-19
PDF
160

Application Of Annual Ratchet Method And Black-Scholes Model In The Calculation Of Single Net Premium Of Unit-Linked Endowment Life Insurance

Husnul Fausiah Magistrawati (1), Ainun Mawaddah Abdal (2)
(1) Hasanuddin University, Makassar, Indonesia ,
(2) Hasanuddin University, Makassar, Indonesia
20-32
PDF
151

Valuation of Pension Funds with Attained Age Normal and Projected Unit Credit Methods: Case Study of PT Taspen (Persero) Samarinda Branch

Annisa Nur Auliya (1), Indrawan (2), Muhammad Azka (3)
(1) Program Studi Ilmu Aktuaria, Institut Teknologi Kalimantan ,
(2) Program Studi Ilmu Aktuaria, Institut Teknologi Kalimantan ,
(3) Program Studi Ilmu Aktuaria, Institut Teknologi Kalimantan
33-45
PDF
201

Development of Economic Capital Using Value-at-Risk (VaR) for Catastrophe (Re)Insurance

Danar Handoyo, S.Si., AAAIJ., AAAK., CRMP. (1), Rahmalia Falah Anwar, S. Aktr. (2), Dr. Ruben Damanik, M.T., M.Si. (3), Rico Fernando Nainggolan, S. Mat. (4)
(1) PT Reasuransi MAIPARK Indonesia ,
(2) PT Reasuransi MAIPARK Indonesia ,
(3) PT Reasuransi MAIPARK Indonesia ,
(4) PT. Reasuransi MAIPARK Indonesia
46-59
PDF
127

Forecasting Rupiah-to-US Dollar Exchange Rate 2020 - 2025 Using a Fuzzy Time Series Markov Chain Model

Tiur Masayu Rahmadani (1), Rosa Maeni Mutianti (2), Camelia Miftahur Rizki Kiem Hwa (3), Iftha Nikmatul Khasanah (4), Winner Yeo (5), Kgs. M. Rifat Alfarisi (6), Yohana Joevanca Kurniawan (7), Adriano Fadlan Juwono (8), Mey Lista Tauryawati (9)
(1) Business Mathematics Department, Universitas Prasetiya Mulya, Indonesia ,
(2) Business Mathematics Department, Universitas Prasetiya Mulya, Indonesia ,
(3) Business Mathematics Department, Universitas Prasetiya Mulya, Indonesia ,
(4) Business Mathematics Department, Universitas Prasetiya Mulya, Indonesia ,
(5) Business Mathematics Department, Universitas Prasetiya Mulya, Indonesia ,
(6) Business Mathematics Department, Universitas Prasetiya Mulya, Indonesia ,
(7) Business Mathematics Department, Universitas Prasetiya Mulya, Indonesia ,
(8) Business Mathematics Department, Universitas Prasetiya Mulya, Indonesia ,
(9) Business Mathematics Department, Universitas Prasetiya Mulya, Indonesia
60-72
PDF
124

Use of Actuarial Models for Determining Premiums and Reserves

Dr. Drs. Soehardjoepri, M.Si. (1), Rahmania Azwarini, S.Stat., M.Stat. (2)
(1) Department of Actuarial Science, Institut Teknologi Sepuluh Nopember, Indonesia ,
(2) Department of Actuarial Science, Institut Teknologi Sepuluh Nopember, Indonesia
73-83
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147

Modelling The Probability of Insurance Company’s Bankruptcy Using Integro-Differential Equation and Its Simulation

Ghafira Nur Maulida (1), Agung Prabowo (2), Supriyanto (3), Mustafa Mamat (4), Sukono (5)
(1) Mathematics Program Study, Department of Mathematics, Universitas Jenderal Soedirman, Indonesia ,
(2) Statistics Program Study, Department of Mathematics, Universitas Jenderal Soedirman, Indonesia ,
(3) Statistics Program Study, Department of Mathematics, Universitas Jenderal Soedirman, Indonesia ,
(4) Universiti Kolej Bestari, Permaisuri, Terengganu, Malaysia ,
(5) Department of Mathematics, Faculty of Mathematic and Natural Sciences, Universitas Padjadjaran, Indonesia
84-94
PDF
152
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