Journal of Mathematics and Modeling in Finance

Editorial

Volume 5, Issue 1 , July 2025

https://doi.org/10.22054/jmmf.2025.19106

Abstract

Research Article

Surrender analysis of life insurance in Iran at two micro-corporate and macroeconomic levels

Mitra Ghanbarzadeh; Nasrin Hozarmoghadam

Volume 5, Issue 1 , July 2025, Pages 1-13

https://doi.org/10.22054/jmmf.2025.83623.1164

Abstract

To increase the share of life insurance from the written insurance premium of commercial insurance and also considering the necessity of keeping life insurance customers by insurance companies, it is necessary to investigate the causes of surrendering life insurance and provide solutions to prevent it. ... Read More

Research Article

Comparative analysis of stochastic models for simulating leveraged ETF price paths

Kartikay Goyle

Volume 5, Issue 1 , July 2025, Pages 15-46

https://doi.org/10.22054/jmmf.2025.83588.1162

Abstract

This paper compares stochastic models for simulating leveraged Exchange-Traded Funds (LETFs) price paths, focusing on their applications in risk management and option pricing. Using TQQQ (a 3x leveraged ETF tracking NASDAQ-100) as our case study, we evaluate Geometric Brownian Motion (GBM), Generalized ... Read More

Research Article

Option pricing under non-normal distribution in mixed of Gram-Charlier model and fractional models (A case study of Iran Stock Exchange‏)

Mohammad Reza Haddadi; Hossein Nasrollahi

Volume 5, Issue 1 , July 2025, Pages 47-62

https://doi.org/10.22054/jmmf.2025.83277.1154

Abstract

In order to reduce the risk of financial markets, various tools have emerged, and option contracts are the most common tools in this regard. The Black-Scholes model is used to price a wide range of options contracts. The basic assumption in this model is to follow the normal distribution of returns. ... Read More

Research Article

Comparing the performance of different deep learning architectures for time series forecasting

Reza Taleblou

Volume 5, Issue 1 , July 2025, Pages 63-87

https://doi.org/10.22054/jmmf.2025.83410.1157

Abstract

In this paper, we evaluate the performance of two machine learning architectures— Recurrent Neural Networks (RNN) and Transformer-based models—on four commodity-based company indices from the Tehran Stock Exchange. The Transformer-based models used in this study include AutoFormer, FEDformer, ... Read More

Research Article

Enhanced portfolio performance evaluation using adjusted dynamic conditional Jensen’s alpha: A time-sensitive risk approach

Hasan Bayati; Saeid Tajdini; Seung Wook Jung; Majid Lotfi Ghahroud

Volume 5, Issue 1 , July 2025, Pages 89-101

https://doi.org/10.22054/jmmf.2025.83668.1166

Abstract

This study presents an enhanced framework for portfolio performance evaluation by refining Jensens alpha to incorporate dynamic conditional beta. Traditional models rely on static beta assumptions, often overlooking the time-varying nature of portfolio risk and its influence on performance metrics. By ... Read More

Research Article

Measuring information asymmetry surrounding earnings announcements

Rexon Nainggolan; Hendri Sembiring; Clarijun Quimada Montebon

Volume 5, Issue 1 , July 2025, Pages 103-118

https://doi.org/10.22054/jmmf.2025.83341.1161

Abstract

The primary objective of this research is to measure the information asymmetry before, during, and after earnings announcements and how it relates to the drift in post-earnings announcements over an extended period. The study uses the bid-ask spread as an information asymmetry proxy and employs a market ... Read More

Research Article

Designing an epidemic health ‎insurance

Fatemeh Atatalab; Amir Teimour Payandeh Najafabadi; Mohammad Zokaei

Volume 5, Issue 1 , July 2025, Pages 121-135

https://doi.org/10.22054/jmmf.2025.83429.1159

Abstract

The outbreak of the pandemic has prompted the scientific community to build models that can reliably monitor and predict the evolution of pandemics. Payment of medical expenses is the most important benefit offered by pandemic insurance policies. This paper considers a one year healthcare insurance contract ... Read More

Research Article

Modifying premiums for life insurance products using specific mortality tables

Mahboubeh Aalaei; Khadijeh Ebrahimnezhad

Volume 5, Issue 1 , July 2025, Pages 137-153

https://doi.org/10.22054/jmmf.2025.83627.1165

Abstract

‎The aim of this study is to examine the impact of different adjustment multipliers (β) on mortality tables and their effect on premium calculation in the life insurance industry‎. ‎In this research‎, ‎standard mortality tables are compared with mortality tables adjusted by modification ... Read More

Research Article

On data-driven robust portfolio optimization with semi mean absolute deviation via support vector clustering

Eftekhar Kosarinia; Maziar Salahi; Tahereh Khodamoradi

Volume 5, Issue 1 , July 2025, Pages 155-165

https://doi.org/10.22054/jmmf.2025.84881.1170

Abstract

In [14] the authors have studied robust semi-mean absolute deviation portfolio optimization model when assets expected returns involve uncertainty. They applied a data driven approach via support vector clustering to construct the uncertainty set using support vector clustering. In this paper, we show ... Read More

Research Article

A generation theorem for the perturbation of exponentially equicontinuous C₀-semigroups on locally convex spaces

Jawad Ettayb

Volume 5, Issue 1 , July 2025, Pages 167-173

https://doi.org/10.22054/jmmf.2025.85197.1173

Abstract

In this paper, we study the well-posedness of the evolution equation of the form u'(t) = Au(t) + Cu(t), t ≥ 0 where A is the infinitesimal generator of an exponentially equicontinuous C₀-semigroup and C is a (possibly unbounded) linear operator in a sequentially complete locally convex Hausdorff ... Read More

Research Article

Mitigating data imbalance for enhanced third-party insurance claim prediction using machine ‎learning

Maryam Esna-Ashari; Hamideh Badi; Majid Chahkandi; ‎Hamid Saadatfar

Volume 5, Issue 1 , July 2025, Pages 175-187

https://doi.org/10.22054/jmmf.2025.84807.1169

Abstract

Accurate prediction of third-party insurance claims is critical for pricing policies and managing risk. However, the highly imbalanced nature of insurance data—where non-claim cases vastly outnumber claim cases—poses significant challenges to standard predictive models. This study explores ... Read More

Research Article

A mathematical model for deriving the optimal trajectory of life insurance demand

Ghadir Mahdavi

Volume 5, Issue 1 , July 2025, Pages 189-204

https://doi.org/10.22054/jmmf.2025.85123.1172

Abstract

This study explores the optimal trajectory of life insurance demand, a crucial financial tool for managing mortality risk and ensuring economic security for family. Various factors, including mortality risk, wealth growth, interest rates, and policyholder preferences, influence insurance decisions. To ... Read More

The first order nonlinear autoregressive model ‎ ‎with Ornstein Uhlenbeck processes driven by white ‎noise

Volume 1, Issue 1 , March 2021, , Pages 1-7

https://doi.org/10.22054/jmmf.2020.53300.1005

Abstract

This paper presents a nonlinear autoregressive model with ‎Ornstein ‎Uhlenbeck processes innovation driven with white noise. ‎‎‎‎Notations ‎and ‎preliminaries ‎are ‎presented ‎about ‎the ‎Ornstein ‎Uhlenbeck ‎processes ‎that ‎have ‎important ... Read More

Robust net present value with infinite lifetime

Volume 1, Issue 1 , March 2021, , Pages 9-26

https://doi.org/10.22054/jmmf.2020.53929.1006

Abstract

In this study, Robust Net Present Value (RNPV) has been developed for evaluation of projects with infinite life. In this method, the changes of uncertain net incomes in a financial cash flow are postulated in a convex, continuous, and closed region. It has been indicated that RNPV, in the infinite life ... Read More

Unusual behavior: reversed leverage effect bias

Volume 1, Issue 1 , March 2021, , Pages 53-61

https://doi.org/10.22054/jmmf.2020.54928.1016

Abstract

According to the literature on risk, bad news induces higher volatility than good news. Although parametric procedures used for conditional variance modeling are associated with model risk, this may affect the volatility and conditional value at risk estimation process either due to estimation or misspecification ... Read More

Impacts of no short selling and noise reduction on portfolio allocation

Volume 1, Issue 1 , March 2021, , Pages 63-82

https://doi.org/10.22054/jmmf.2020.55023.1015

Abstract

Since noise present in financial series, often as a result of existence of fraudulent transactions, arbitrage and other factors, causes noise in financial data therefore false estimation of the parameters and hence distorts portfolio allocation strategy, in this paper wavelet transform is used for noise ... Read More

Mathematical modeling of stock price behavior and option valuation

Volume 1, Issue 1 , March 2021, , Pages 113-129

https://doi.org/10.22054/jmmf.2020.56846.1022

Abstract

This study emphasizes on the mathematical modeling procedure of stock price behavior and option valuation in order to highlight the role and importance of advanced mathematics and subsequently computer software in financial analysis. To this end, following price process modeling and explaining the procedure ... Read More

Number of Issues	9
Article View	66,711
PDF Download	48,954
View Per Article	617.69
PDF Download Per Article	453.28
Number of Submissions	195
Rejected Submissions	52
Reject Rate	27
Accepted Submissions	109
Acceptance Rate	56
Time to Accept (Days)	80
Number of Indexing Databases	17
Number of Reviewers	152

Volume 5 (2025)

Volume 4 (2024)

Volume 3 (2023)

Volume 2 (2022)

Volume 1 (2021)

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Indexing and Abstracting