The PBO testified in a hearing before the Budget Committee of the Chamber of Deputies as part of the fact-finding inquiry on the EU Investment Plan (the Juncker Plan). Against a background in which many Member States have little room in their budgets to revive public investment, the central idea of the Juncker Plan is to employ those limited public resources, primarily through the establishment of a European Fund for Strategic Investments, to catalyse the use of private resources in investment projects currently considered too risky or insufficiently profitable for the private sector. The PBO outlined the key challenges of the strategy envisaged in the Juncker Plan: its effective capacity to mobilize private investment to the desired extent (a multiplier effect of 1:15); the decisive role of selecting the projects to finance, which must be truly additional to the investments that the market would undertake in any case; the need for the Plan to produce a higher level of investment than the total volume generated by programmes already financed by the European Union and from which the resources for the Juncker Plan will be drawn. Finally, the PBO discussed the incentives for the Member States to participate in financing the plan and the treatment of any contributions within the scope of the European fiscal rules.