Iranian Financial Engineering Association(IFEA) International Journal of Finance & Managerial Accounting 2588-4379 9 32 2024 01 01 Modeling the effect of instability in "financial, economic and sustainability" policies on the choice of investment strategies of companies in the Tehran Stock Exchange 39 52 21995 10.30495/ijfma.2022.59599.1600 EN Babak Mahmoudidarvishani Department of Financial Management, Qazvin Branch, Islamic Azad University, Qazvin, Iran Hossein Kazemi Department of Financial Management, Qazvin Branch,Islamic Azad University, Qazvin,Iran Farzin Rezaei Department of Financial Management, Qazvin Branch, Islamic Azad University, Qazvin, Iran, Journal Article 2021 03 13 The purpose of this study was to model the effect of instability in "financial, eco-nomic, and sustainability" policies on the choice of investment strategies of compa-nies in the Tehran Stock Exchange. The present study is descriptive-correlational research. Based on the nature of the data, it is quantitative research, and based on the objectives, it is applied research. Based on the method of systematic elimination, 130 companies out of 525 companies listed on the Tehran Stock Exchange were selected as the study population of the present study. The information required for the library research section was collected from Persian and English books, maga-zines, and specialized articles. The required data of the experimental part of the research were collected and stored in a database through the use of financial state-ments and explanatory notes, activity reports of the board of directors of sample companies, as well as existing databases such as Rahavard Novin, Securities and Exchange Organization (Codal), stock exchange websites and the Central Bank system. The results showed that corporate financial, economic and sustainability policies are an effective factor in choosing corporate investment strategies. http://www.ijfma.ir/article_21995_6c0ffea2dc26e3e5f85302514be3c697.pdf