Here are some factors that affect the decision-making:
More intelligent the decision-maker is, high will be his conservative attitude and they will make the decisions which are less prone to the risk.
The expectations of the people make them decide even if they have less information. But if the people have less expectations they will work on each and every detail and make decision accordingly.
The factors affecting decision-making capabilities are:
Influence of culture and society
One has to consider the social and cultural values for decide something. There are some social norms that the companies refer to while taking an important decision.
Personal habits of the individual who has to make the decision, affect their decision-making. Some have rigid attitude and stick to their decision even if the situation requires some change.