Schwierz, Christoph; Augurzky, Boris; Focke, Axel; … - 2008
In times of peak demand hospitals may fail to deliver the high standard of treatment quality that they are able to … opposed to days without excess demand. We find that when this variation is ignored in the regression framework, the effect of … demand on outcomes is biased upwards. The reason is that when demand is high more patients with a higher unobservable frailty …
