Secondly, the manager should consider calculating an expected value for every concluded branch, then each probable node and every decision node as a simple means of identifying expected values for each decision alternative. While the expected value is equal to the payoff, it is also the product of its probability and payoff.

Due to its results, the expected value rule is regarded as the most reliable way of judgment in managerial decision making because of its reliability in maximizing anticipated profit. However, the ability of a manager to reach actual decisions and maximize profit through this tool is based on his/her willingness to accept risk. The expected value rule is reliable because it enables managers to have different attitudes towards risk-taking in the process of making decisions. The different attitudes in turn enable managers to make risky decisions in ways that maximizes expected utility of the valuable or profitable outcomes....
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