Person: Granic, Dura-Georg
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Choices and preferences : Evidence from implicit choices and response times
We present a new experimental paradigm where choice-induced preference change is measured for alternatives which are never compared directly, but rather confronted with other alternatives in a way which keeps choices predictable without exogenously manipulating them. This implicit-choice design improves on the free-choice paradigm, avoiding the recently criticized selection bias. Rating and ranking spreads in two experiments show that preference-based choices feed back into and alter preferences even if choices are not directly among similarly evaluated alternatives. In agreement with recent brain-imaging evidence, response time measurements for direct choice pairs in our experiments indicate that reappraisal processes are already triggered during decision making, with larger post-choice spreads (sharper attitude change) being associated to quicker decisions.
Two field experiments on Approval Voting in Germany
We report on two field experiments on Approval Voting conducted during actual state and federal elections in Germany. Voters provided approval ballots both for named district candidates and for state parties. The data reveal significant discrepancies in the outcomes under the official method and Approval Voting. Further, our analysis suggests that currently used voting methods do a poor job of representing the electorate’s preferences. As a consequence, some recurring features of the political landscape in a given country might be, in part, an artifice of the employed voting method.