Decision-making process is a crucial managerial function that is increasingly becoming complex due to technological and politico-socio-economical factors. Managers need to ensure that their companies continuously innovate and improve in order to achieve and maintain a sustainable competitive edge. Porter (1985) assumed that it is this competitive ability which is considered to be at the core of the success or failure of a firm. If managers want their companies to survive in a dynamic and uncertain environment, they need to make effective decisions concerning new business opportunities, products, customers, suppliers, markets and technical developments. According to Cyert et al. (1956), “Management is a series of decision-making processes” and “decision making is at the heart of executive activity in business”.
The word ‘decision’ has been defined as an “Answer to some problem or a choice between two or more alternatives” (Rowe et al., 1984). It is the ability to make a decision regarding choices within a pool of alternatives (Hammond, 1999). Rowe and Mason (1987) refer to decision making in terms of five key cognitive processes, i.e., stimuli, response, reflection, implementation and evaluation. A majority of the research on decision making ascribes to the belief that decision making is a process. Phillips (1997) described a five-stage process for decision making, i.e., identifying all alternatives, valuing the alternatives according to preferences and potential outcomes, assembling the information, choosing between preferences and outcomes, and selecting the most favorable alternative.
The studies on decision making and decision styles have evolved over the last century. In the 1960s, researchers started focusing specifically on the area of decision making and individuals’ decision styles. Driver and Streufert (1969) developed a model in line with the decision making style that examined one’s information processing and problem solving abilities. This development was based on a previous work conducted in the area of cognitive psychology (Rowe and Boulgarides, 1983).
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