Motivating crowds using social facilitation and social transparency

We reported results from an experiment using an image labeling task, when workers were able to compare their own labels with the labels generated by another worker, they were motivated to generate more labels. In addition, when the workers shared their demographic information with their colleagues, the number of labels generated by them became even higher. This indicates that we can utilize the power of social facilitation and social transparency to motivate workers in crowdsourcing to reduce operation costs and even enhance outcome quality.