Decisions often involve trade-offs between a more normative option and a less normative but more tempting one. The authors propose that the intrapersonal conflict that is evoked by choices involving incompatible goals can be resolved through scope-insensitive justifications. The authors describe...

The goal-gradient hypothesis denotes the classic finding from behaviorism that animals expend more effort as they approach a reward. Building on this hypothesis, the authors generate new propositions for the human psychology of rewards. They test these propositions using field experiments,...