In a previous post on how mood affects your reaction to brands you know (see You Are Most Affected By Brands And Logos When You Are Sad And Scared), I talked about the research from Marieke de Vries of Radboud University Nijmegen, in the Netherlands. De Vries also did research on two types of decision making: a trusting -your- gut intuitive method vs. following a logical, deliberative decision-making process of weighing alternatives and thinking through pros and cons. De Vries was interested in whether one method of decision-making was better than another, and also whether your mood affected the outcome of the decision.
When to use deliberative decision-making — Research by Dijksterhuis shows that when you have simple decision to make you make better decisions when you use a logical deliberative method.
When to use intuitive decision-making — Research by Shiv shows that when you have a complicated decision to make, you make better decisions when you use an intuitive or “gut” method.