This paper explores the link between quality, cost and concentration. Using concentration and cost data and product …, random effects estimation explores the impact of concentration and cost on quality. The results demonstrate that overall … market concentration and high fixed costs are both positively correlated with product quality across most industries …

market definition such as "acute in-patient care" averages out severe discrepancies that become visible when concentration is … only impact on the level of concentration, while the correlation remains high. Our results underline the need for more …