Abstract
This paper surveys results of a research program investigating human judgments of imprecise probabilities under sample-space ignorance (i.e., ignorance of what the possible outcomes are in a decision). The framework used for comparisons with human judgments is primarily due to Walley (1991, 1996). Five studies are reported which test four of Walley's prescriptions for judgment under sample-space ignorance, as well as assessing the impact of the number of observations and types of events on subjective lower and upper probability estimates. The paper concludes with a synopsis of future directions for empirical research on subjective imprecise probability judgments.
Original language | English |
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Pages (from-to) | 135-150 |
Number of pages | 16 |
Journal | Risk, Decision and Policy |
Volume | 5 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2000 |