This article demonstrates that economic conditions affect job match quality by influencing the task shares of available jobs. Cognitive (reasoning/communication) and physical (sensory/coordination) task shares and education-based overqualification measures are generated from Canada’s Labour Force Survey, the Career Handbook, and the Occupational Information Network database. In unfavourable labour markets, cognitive task intensity decreases and physical task intensity rises. The task content of newly formed jobs is then shown to be an important empirical determinant of overqualification. A calibrated search model that accounts for these findings quantifies the costs of increased overqualification. Each percentage point increase in unemployment raises overqualification by 5.8 percentage points, partly due to changes in task shares. Economic output subsequently decreases by about 0.6%.

中文翻译：

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经济条件、任务份额和资格过高

本文表明，经济条件通过影响可用工作的任务份额来影响工作匹配质量。加拿大劳动力调查、职业手册和职业信息网络数据库生成了认知（推理/交流）和身体（感觉/协调）任务份额和基于教育的资格过高测量。在不利的劳动力市场中，认知任务强度降低，体力任务强度增加。新形成的工作的任务内容随后被证明是资格过度的一个重要的经验决定因素。考虑到这些发现的校准搜索模型量化了增加过度资格的成本。失业率每增加一个百分点，资格过剩就会增加 5.8 个百分点，部分原因是任务份额的变化。