“…As a predictor variable, we use consumer prices of petroleum products, net of duties and taxes, which are taken from the European Commission's Weekly Oil Bulletin (WOB). We use data for automotive gas oil, heating gas oil and Euro Super 95 gasoline, which we average together as in Modugno (2011). We use the same transformations as in the case of inflation, that is, the annual (52 week) and weekly log differences (for y‐o‐y and m‐o‐m, respectively).…”