of difficulties that participants in microworld experiments would experience only too soon. Unlike the advocates of classical decision theory, however, researchers within the paradigm of dynamic decision making have not interpreted the failure of their participants as "errors" or "biases" according to some arbitrarily chosen norm. Instead, the performance and behavior of the participants in microworld experiments have been evaluated in close connection to the demands that each such microworld has raised. As a consequence, this approach has resulted in two things. First, a number of decision or complex solving behaviors have been examined and described in detail, some of which have been shown to be adaptive decision strategies, whereas others have been interpreted as maladaptive behaviors. Second, the participants' performances have revealed in detail a number of task characteristics with which people have severe problems.
The research reported in this chapter was supported by grants from the Swedish Council for Research in the Humanities and Social Sciences.
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