Herfindahl-Hirschman Index health insurance market Netherlands 2013-2019, by province

This statistic shows the Herfindahl-Hirschman Index (HHI) on the health insurance market in the Netherlands from 2013 to 2019, by province. In 2019, the province of Zuid-Holland reached an HHI of 1,716. The Herfindahl-Hirschman Index (HHI) measures the market concentration and derives from micro-economics. According to the source, a high number means a higher concentration, less players on the market and a higher market share. The source also assumes that lower concentration means more competition between insurance companies and more choice for consumers. At a value of 2,000 or higher, the market is deemed concentrated. In 2019, the province of Zuid-Holland scored a value of 1,716, meaning the health insurance market was not concentrated in this province. Opposed to this is the province of Friesland, which scored a value of 5,527, effectively indicating there is high concentration there.