Internal controls, decentralization, and performance

Internal control mechanisms are fundamental to organizational governance; particularly, to the agency relationship associated with decentralization of decision rights. Management accounting and organizational literatures provide conflicting predictions on the association between decentralization and internal controls, with some research arguing that internal controls be tightened to mitigate the risks associated with greater decentralization of decision rights while other work avers that tighter internal controls defeat the purposes of decentralization. In this chapter, we argue that managers choose these two organizational design variables jointly. Capitalizing on a unique database of control practices in the purchasing and payment process within the procurement function, this chapter examines the relationship between control tightness – a critical characteristic of internal controls – and decentralization. Using a simultaneous equation model, the study finds that decentralization and internal control design are endogenously determined. Tight control is negatively associated with the level of decentralization, while decentralization has a positive effect on the tightness of control. These results reconcile the apparently contradictory results relating these two variables. The chapter also finds that decentralization and tight control mechanisms operate both independently and synergistically to improve performance.