The main purpose of this paper is to evaluate the innovative nursing home voucher scheme that was introduced by the Valencia Autonomous Region of Spain in the early 1990s to implement targets laid down by the national plan for the development of older people's services. The article begins with a review of the evolution of Spanish social services, and especially the nursing home sector, and then summarises the genesis, objectives and characteristics of the voucher scheme. The main part of the paper reports a performance analysis and economic evaluation of the programme. On the basis of detailed information over four years, it is concluded that nursing home vouchers have contributed to the increased supply of publicly-financed rooms, have promoted equality of access to the service, and have increased user choice. It is also shown, however, that while vouchers can lead to an increase in the quality of inputs, they increase utilisation and expenditure. In the absence of the monitoring or reporting data that would be required, it is not possible to determine whether the scheme has increased efficiency, in the sense of improving the quality of life of frail older people at reasonable and containable cost.