1) The document describes several models of decision making, including the rational/classical model, irrational models, and administrative, bounded rationality, social, behavioral, political, and intuitive models.
2) The rational/classical model assumes managers have complete information and make optimal decisions, while the irrational models recognize limitations like vague goals, limited searches, and satisficing versus maximizing solutions.
3) The administrative model assumes imperfect information leads to "good enough" decisions on available options, while the bounded rationality and behavioral models incorporate cognitive limitations and partial knowledge into the decision process.