He was one of the architects of the devaluation of the Belgian Frank in 1982 when he worked at the cabinet of Wilfried Martens in the government Martens V. As governor of the NBB, he prepared the entry of Belgium to the euro in 1999.
He was one of the designers of the depreciation of the Belgian Franc in 1982 when he worked at the office of Wilfried Martens in the government Martens V. As governor of the NBB, he prepared Belgium's entry into the euro in 1999.