networks, we used information on the doctors' place and time of study and their hospital work history. We found that GPs …

the context of heart attack treatments in Sweden, where we exploit quasirandom assignment of physicians to patients. We … document long learning curves, where physicians keep learning over the first 1000 treatments performed, affecting both … 150 treatments performed, corresponding to one year of experience. Learning rates are higher for physicians who have …

increase in hospital emergency department visits (a substitute to primary care), but no effects on hospitalizations. These …

We analyse - theoretically and empirically - the effect of hospital mergers on waiting times in healthcare markets … long panel of data on hospital mergers in the English NHS, where we find that the effects of a merger on waiting times … crucially rely on a legal status that can reasonably be linked to the degree of profit-orientation. Whereas hospital mergers …