Managerial decision making involves responding to opportunities and threats by analyzing options and choosing courses of action. There are two types of decisions - programmed decisions which are routine, and non-programmed decisions which are unusual situations with no set rules. The classical model assumes all information is available, but the administrative model recognizes information is often incomplete. Effective decision making involves framing the problem, generating alternatives, evaluating alternatives, choosing an alternative, implementing it, and learning from feedback. Group decision making can reduce biases but risks groupthink; techniques like devil's advocacy and diversity can improve it. Organizational learning and creativity help decision making by challenging assumptions and encouraging new ideas.