Econ Papers Daily / 期刊论文
产出质量、生产率与需求：来自中国钢铁行业的证据
Output Quality, Productivity, and Demand: Evidence from the Chinese Steel Industry
摘要
Unobserved objective output quality complicates the analysis of firm productivity and demand because higher‐quality products entail higher costs but offer greater consumption benefits. Using a panel of firms with output quality data, we decompose quantity‐based productivity into fundamental productivity and the costs of quality, and separate the demand residual into fundamental demand and quality benefits. Fundamental demand accounts for most revenue variation, whereas quality's revenue‐enhancing benefits are largely offset by its costs. During the 2008 global financial crisis, shifts in quality diverged from changes in fundamental productivity and demand, highlighting the role of quality in assessing firm and industry performance.
中文摘要
未观测到的客观产出质量使企业生产率与需求分析复杂化，因为更高质量的产品虽带来更高成本，却提供更大的消费效用。基于包含产出质量数据的企业面板数据，我们将基于数量的生产率分解为基础生产率与质量成本，并将需求残差分离为基础需求与质量收益。基础需求解释了大部分收入变动，而质量带来的收入提升效应在很大程度上被其成本所抵消。在2008年全球金融危机期间，质量变动与基础生产率及需求变化呈现分化态势，凸显了质量在评估企业与行业绩效中的关键作用。