Income-based incentives in UK general practice.

Since 1990, income-based economic incentives have ostensibly become more important in the remuneration structure of UK general practitioners. For incentives to fulfil their role, however, GPs must possess discretion over income-generating activity and be assumed to be income maximisers. Evidence from one English health authority suggests that a very high proportion of GP income continues to be determined by patient characteristics and the scope for a discretionary response to income incentives is correspondingly small. Where discretion does exist, higher levels of GP incomes do not appear to militate against further discretionary income raising, except in the case where this income and budgetary discipline are in conflict.