Shaping choices -- Plausible paths -- Assembled preferences -- Goals of choice architecture -- Decisions by default -- How many options? -- Putting things in order -- Describing options -- Building choice engines -- Becoming better choice architects.

How is risk-taking affected by prior gains and losses? While normative theory implores decision makers to only consider incremental outcomes, real decision makers are influenced by prior outcomes. We first consider how prior outcomes are combined with the potential payoffs offered by current...