Making Time for Agricultural and Life Science Research: Technical Change and Productivity Gains
分析了1975至2005年美国赠地大学农业与生命科学教师的研究生产率，发现单位时间产出在1980年后显著提升，但教师可支配研究时间大幅减少，导致人均论文产出未增长。
Abstract This work analyzes the research productivity of agricultural and life science faculty in U.S. Land Grant research universities from 1975 to 2005. Production function estimations that control for inputs and demographic characteristics reveal significant improvements after 1980 in faculty research productivity per unit time, especially in the non‐top ten universities. Because, however, time available to faculty for research has decreased substantially in the past three decades, overall journal article output per faculty did not increase after the 1980s. Our findings demonstrate large productivity increases but raise concerns about the optimal allocation of faculty time.