Examining the role of the moderator of financial constraint (KZ Index) on the relationship between uncertainty and company investment (Case study: Companies listed to the Tehran Stock Exchange)

The purpose of this study, investigating the effect of financial constraint on the relationship between uncertainty and the amount of investment of companies listed to the Tehran Stock Exchange. The statistical sample includes 82 companies during the period from 2011 to 2020. Hypotheses testing was performed using linear regression and panel data along with the random method, using Eviews 9 software. The research results showed that the financial constraint moderate the inverse relationship between uncertainty and company investment.