Learning-by-Doing and Productivity Growth Among High-Skilled Workers: Evidence from the Treatment of Heart Attacks
Learning-by-Doing and Productivity Growth Among High-Skilled Workers: Evidence from the Treatment of Heart Attacks
复制标题
高技能工人边干边学和生产力增长：心脏病治疗的证据
DOI：
10.2139/ssrn.3934761
复制
发表时间：
2021
期刊：
影响因子：
--
通讯作者：
J. Vikström
中科院分区：
文献类型：
--
作者：
Petter Lundborg;S. James;B. Lagerqvist;J. Vikström
边干边学是经济学中的一个基本概念，但在高技能环境中，由于工人的任务分配是非随机的，而且缺乏绩效衡量标准，因此，这是一个具有挑战性的概念。我们的论文克服了这些挑战的背景下，在瑞典的心脏病发作的治疗，我们利用准随机分配的医生的病人。我们记录了漫长的学习曲线，医生在前1000次治疗中不断学习，影响熟练程度和决策技能。这些学习效果转化为对患者健康的影响，但仅在前150次治疗中，相当于一年的经验。学习率较高的医生谁曾与更有经验的同事和谁获得了更多的经验，在治疗复杂的情况下。经验丰富的医生在决定治疗时对患者的特征更敏感，最近的心脏病发作治疗经验比更遥远的经验更有价值，这表明人力资本贬值。我们还表明，在职业生涯的前四年，生产率增长与工资增长保持同步，但此后则出现了下降。我们的研究结果提供了罕见的证据，证明在高技能任务中存在延长的学习曲线，并支持这样一种观点，即边做边学可以成为生产力增长的强大机制。
Learning-by-doing is a fundamental concept in economics but a challenging one to document in high-skilled settings due to non-random assignment of workers to tasks and lacking performance measures. Our paper overcomes these challenges in the context of heart attack treatments in Sweden, where we exploit quasirandom assignment of physicians to patients. We document long learning curves, where physicians keep learning over the first 1000 treatments performed, affecting both proficiency and decision-making skills. These learning effects translate into effects on patient health, but only over the first 150 treatments performed, corresponding to one year of experience. Learning rates are higher for physicians who have worked with more experienced colleagues and who have gained more experience in treating complicated cases. Experienced physicians are more responsive to patient characteristics when deciding on treatments and experience from more recent heart attack treatments is more valuable than experience from more distant ones, suggesting that human capital depreciates. We also show that productivity growth keeps pace with wage growth over the first four years of the career but flattens out thereafter. Our results provide rare evidence on the existence of prolonged learning curves in high-skilled tasks and support the notion that learning-by-doing can be a powerful mechanism for productivity growth.
与低素质的外科医生相比，高素质的心脏外科医生是否不太可能为高风险患者进行手术？
影响因子：
3.4
作者：
Glance,LaurentG;Dick,Andrew;Mukamel,DanaB;Li,Yue;Osler,TurnerM
通讯作者：
Osler,TurnerM