Factor Variability Test in Stock Return Forecasting Using Dynamic Model Averaging (DMA)
Subject Areas : Financial engineeringhosein maghsoud 1 , hamedreza vakilifard 2 , Taghi Torabi 3
1 - Department of Financial Management, Science and Research Branch, Islamic Azad University, Tehran, Iran.
2 - Department of Financial Management, Science and ResearchBranch, Islamic Azad University, Tehran, Iran.
3 - Department of Economics,, Science and Research Branch, Islamic Azad University, Tehran, Iran.
Keywords: Stock Returns, forecasting, Time-Varying Parameter (TVP), Dynamic Model Averaging (DMA),
Abstract :
In this study, using dynamic averaging models and monthly data in the period 2001:4 until 2018:3, Tehran Stock Exchange returns be investigated. In this regard, macroeconomics variables and parallel markets indices have been used to forecast the stock returns. Initially, estimating various models such as Recursive models, time-varying parameter models (TVP), dynamic model selection (DMS) and dynamic model averaging (DMA) in Matlab software, It was observed that DMS model with α = β = 0.95 had higher forecast accuracy (based on MAFE, MSFE and Log (PL) metrics). Gold price (48-period), exchange rate (36-period) and inflation rate (30-period) had the highest effect on stock returns, respectively, and global oil prices and GDP had the lowest effect by 28 and 2, respectively. Finally, the results indicate that utilizing dynamic models by considering time variations in parameters and the variation of the model increases the efficiency of forecasting stock returns. Keywords: Forecasting, Stock Returns, time-varying Parameter (TVP), Dynamic Model Averaging (DMA).
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14) Asgari, Mohsen (2015). Investigating Fractional Brownian Motion andIts Role in Analysis of Stock Price Trend, MSc Thesis, Shahed University, Department of Applied Sciences(in Persian).
15) Azizi S.M.E.P.M., Neisy A. (2018). A New Approach in Geometric Brownian motion Model. In: Cao BY. (eds) Fuzzy Information and Engineering and Decision, Advances in Intelligent Systems and Computing,
vol 646.
16) Bongiorno E.G., Goia A., Vieu P. (2017). On the Geometric Brownian Motion assumption for financial time series. In: Aneiros G., G. Bongiorno E., Cao R., Vieu P. (eds) Functional Statistics and Related Fields.
Contributions to Statistics. Springer, Cham.
17) Braumann Carlos A, (2019). Introduction to Stochastic Differential Equations with Applications to Modelling in Biology and Finance (Chapter 8: Study of geometric Brownian motion (the stochastic Malthusian model orBlack–Scholes model( ), John Wiley & Sons Ltd
18) Boudreault Mathieu, Renaud Jean‐François (2019). Actuarial Finance: Derivatives, Quantitative Models and Risk Management, One (Chapter 14:Brownian motion), John Wiley & Sons, Inc.
19) Cleofe Giorgino Maria, Barnabè Federico, Martin Kunc (2019).Integrating qualitative system dynamics with accounting practices: The case of integrated reporting and resource mapping, System research and behavioral science, 1-22.
20) Dobrow Robert P., (2016). Introduction to Stochastic Processes with R (Chapter 8: Brownian motion), John Wiley & Sons, Inc.
21) Emami, Sophia (2014). Option Pricing and Switching Regime Model,Masters Thesis, University of Guilan, and Faculty of Mathematical Sciences (in Persian).
22) Forrester, J.W.,(1994). System dynamics, systems thinking, and soft, O.R. System Dynamic Review, 10, 245–256.
23) Kavetsky, Carlos,(2017). Calibrating a System Dynamic Model within an Integrative Framework to Test Foreign Policy Choices, Electronic Theses and Dissertations. 5578, 1-197
24) Khuchiyani Ramin, Hosseini Seyed Mohammad, Shojaee Fatemeh (2018). Comparison of Linear and Nonlinear Forecasting Models ofPharmaceutical Stocks Based on Stochastic Differential Equations,
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25) Krishna Reddy, Vaughan Clinton,(2016). Simulating Stock Prices Using Geometric Brownian motion: Evidence from Australian Companies, Australasian Accounting, Business and Finance Journal, 10(3), 23-47.
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29) Nisi, AbdulSadeh; Chamani Enbaji, Roya; Shojaee Manesh, Leily (2012). Three Basic Models in Financial Mathematics, Journal of AdvancedMathematical Modeling, 2 (1), 77-96(in Persian).
30) Omrani, Somayeh (2019). Price Forecasting using Stochastic Differential Equations and Time Series, MSc Thesis, Kharazmi University -Faculty of Economics Sciences, Tehran (in Persian).
31) Pedro P. Mota & Manuel L. Esquível, (2016). Model selection for stock prices data, Journal of Applied Statistics, 43:16, PP2977-2987.
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34) Rahimov, Kamran; Nemati, Omid (2015). Calibration of simulated models using Aimsun software, 1st International Conference on Human,Architecture, Civil and Urban Engineering, Tabriz (in Persian).
35) Shao, J. Chin. Ann. Math. Ser. B (2018). Ergodicity and First Passage Probability of Regime-Switching Geometric Brownian Motions, Chinese Annals of Mathematics, Series B, 39(4), 739–754
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An Approach from Physical Economics, Financial Management Strategy, 6( 21), pp. 104-73(in Persian).
40) Zhikun Ding, Wenyan Gong, Shenghan Li and Zezhou Wu(2018).
System Dynamics versus Agent-Based Modeling: A Review of Complexity Simulation, sustainability, 10, 2484; 1-13.
