Fig. 4From: Health system efficiency in OECD countries: dynamic network DEA approachThe MI results at VRS. Note: Red indicates those countries that have achieved an overall decline in health performance over the reporting period (i.e. MI < 1, regress). Grey indicates countries where there has been no overall change in health performance. Black indicates countries with overall progress in healthcare performance (i.e. MI > 1, progress). Source: Prepared by authorsBack to article page