Abstract:
Purpose: This research explores the simultaneous relationship between major 
financial decisions of financing, dividend and investment decisions. 
Design, methodology/approach: The sample data for this study includes 198 non
financial companies listed on the Colombo Stock Exchange over five years period 
after excluding the financial sector companies listed from 2018 to 2022.This study 
employs the Generalized Method of Moments (GMM) to estimate the regression 
models on the panel data. 
Findings: The results show that simultaneity in financial decisions only occurs in 
financing and investment. Investment and dividend payment are not simultaneously 
decided, whereas only dividend is affecting financing but not the other way around. 
Practical implication: It supports firms find the greatest balance between investing 
in growth, financing those investments, and paying shareholders with dividends, 
which can improve long-term profitability. By seeing these decisions together, 
companies can bring into line their policies to meet shareholder expectations, 
balancing between investment and dividends. 
Originality value: The uniqueness lies in integrating these key financial decisions 
together rather than analyzing them in isolation. This approach could offer deeper 
understandings into how firms make trade-offs and regulate their policies across 
diverse financial areas.