Philosophers deny a proposal for actions can be deduced from arguments for or against the proposal because they may be incompatible. Nevertheless, people in general, and politicians especially, make decisions and present arguments they believe are convincing. We studied politicians who made decisions in complex situations. They spoke about possible actions, their consequences, the probabilities of these consequences and their evaluations, but rarely indicated why their arguments led to their choice. We hypothesized implicit argumentation rules involved and checked whether they (...) predicted those choices. We found seven implicit informal logic rules involved. We also found a random sample of people made the same choices based on the same arguments, suggesting basic warrants by which people argue about decisions. (shrink)

In this paper, close attention is paid to the argumentative patterns resulting from combining pragmatic argumentation in which a recommendation is made with arguments in which the majority is invoked. I focus on such argumentative patterns as employed by European parliamentary committees of inquiry conducting inquiries into the activity of the Equitable Life Assurance Society. By incorporating legal and political insights about the activity of these parliamentary committees of inquiry into a pragma-dialectical argumentative approach, an analysis will be given of (...) the selected argumentative pattern. This analysis will reveal which standpoints are supported by which arguments and how these arguments relate to each other to increase the acceptability of the recommendation made. In addition, the analysis will explain the arguer’s argumentative choices in the pattern employed. (shrink)