crowding out. Our findings suggest that rewards can improve innovation and creativity, and that there may be a tradeoff between …

incentives and wage gifts on creativity. We find that tournaments substantially increase creative output, with no evidence for … uncertain mapping between effort and output that inhibits reciprocity. This uncertainty is prevalent in creative and other …

of uncertainty on travel times and the implications this has forestimations of travel time values has received much less … attention in the literature. In thispaper we compare various modelling approaches to address uncertainty and demonstrate … thatignoring uncertainty issues may easily lead to distorted estimates of values of travel time. Thisis of special relevance in …

use an analytical framework in which wage differentials result from two types of uncertainty. Quantity uncertainty … originates from imperfect foresight in future product demand. I argue that workers who take over part of the quantity uncertainty … from the employer get higher payments. Quality uncertainty on the other hand originates from the fact that employers are ex …