Policymakers/researchers have developed a lot of theories and empirics to study issues related to investment policy. The current study investigcates in detail the managerial role in a firm's investment decision. This study is evident that the relationship is more profound for the firms that are large and financially unconstrained and have a strong balance sheet position. For economic constraints, the effect for SO firms is more pertinent than non-state-owned (NSO) firms, and the negative effect of competition and recession is decreased by high ability managers. For mitigating the effect of endogeneity and getting robust results, a propensity score matching approach is to be used.