CeRM recommendation for creating a new tool, the Open Welfare Funds: open funds based on real capitalisation of contributions, dedicated to both pension and health care provisions, and linked to collective insurance coverage against major health risks (first of all lack of self-sufficiency) Within welfare systems, health care is the expenditure that poses the most urgent problems for long term sustainability. Without policy interventions and structural reforms, its physiological tendency towards increases over Gdp will inevitably require access restrictions and cutting off of demand for services. This paper highlights the need to renew the current health care financing scheme. In the presence of ageing populations and rising incidences of health care expenditures over Gdp, this scheme cannot remain fully in charge of the working income of active people (pay-as-you-go), if we want to avoid depressive effects on employment, investments and productivity. Such effects, besides hampering economic growth, would have a negative impact on health care itself, with resources becoming more and more scarce with respect to needs. The financing scheme must become multipillar, with pay-as-you-go complemented by a private channel based on the real capitalisation of contributions. This channel would be capable of allocating savings, supporting productive investments and generating resources to be dedicated to health care. The best structuring and concrete functioning of the private pillar is less clear and under discussion. This position paper puts forward an operational proposal: the open capitalisation fund for welfare should offer both pension and health care provisions through real accumulation of contributions on individual accounts, and should be linked to collective insurance coverage against major risks and lack of self-sufficiency. This tool presents numerous positive characteristics, compared to the public pay-as-you-go monopillar as well as to a multipillar system in which the private component consists exclusively or mainly of insurance contracts. In fact, it is necessary to restrict the recourse to pure insurance coverage only to a limited group of treatments, because this kind of coverage is not equipped to deal with the dynamics of future expenses. As the difficulties American insurance companies are experiencing demonstrate, the pure insurance coverage ends up with the recurrence, in the private area, of the same defects as the pay-as-you-go in the public health care systems. Insurance pooling is not but a pay-as-you-go scheme applied over the group of insured members.