Who Works for Piece Rates and Why
研究农业工人选择计件工资还是计时工资的决定因素，发现年龄等人口特征对非货币偏好的影响超过收入效应，壮年工人反而最不愿从事收入更高的计件工作。
Abstract The decision whether to work on a piece‐rate or time‐rate agricultural job depends on workers' preferences for earnings and nonpecuniary attributes of jobs. These preferences differ geographically and with workers' demographic characteristics, particularly age. Based on estimates that control for sample selectivity, nonpecuniary effects of age dominate earnings effect in most age groups. A substantial share of prime‐age workers do not choose to work in the more lucrative piece‐rate jobs. Indeed, all else the same, prime‐age workers are the least likely among all age groups to work piece rate.