Quality and Competition: An Empirical Analysis across Industries
用有序Probit模型分析制造业数据，发现市场集中度与产品质量正相关，集中度越高，产品越可能高质量。
This paper empirically explores the link between quality and concentration in a cross-section of manufactured goods. Using concentration data and product quality indicators, an ordered probit estimation explores the impact of concentration on quality that is defined as an index of quality characteristics. The results demonstrate that market concentration and quality are positively correlated across different industries. When industry concentration increases, the likelihood of the product being higher quality increases and the likelihood of observing a lower quality decreases