Likewise, a tool for planners and policy makers is provided. The data source is the set of Input–Output tables gathered by the OECD, which, in its last edition, has collected a sufficiently representative number of countries with an equally suitable disaggrege level. Two models are elaborated, for the estimation of the Rasmussen backwards multiplier and of the imports multiplier, respectively. Some explanatory variables previously used in the literature are confirmed, while others are proposed as alternative ones.