found that the single lottery scheme increased motivation and performance relative to a non-probabilistic piece-rate scheme …

Although motivation and productivity have been thoroughly researched, the knowledge of how humanitarian organizations …’ employees in Yemen perceive motivation roles in enhancing their productivity is lacking. Such knowledge is critical because … enhancing productivity via investigating how motivation (intrinsic and extrinsic) could influence employees' productivity in …

that over time, either firms learn about worker productivity but productivity remains fixed or workers' productivities … importance. We derive a dynamic model of learning and productivity that nests both models and allows them to coexist. We estimate … correlates of productivity, as opposed to the empirical evidence on employer learning which uses one fixed measure. Second, we …