Due to the war it was hard to get German goods shipped to Canada. Therefore, the German book store suffered from a decrease in profits as German books could not be purchased from Germany anymore.
In other industries, however, the shortage was overcome. In January 1915, the Berliner Journal stated that a German citizen of Berlin had learned how to brew beer that was as good as the beer previously imported from Germany. Therefore, the German population did not have to miss their imported beer anymore.
(“Einen Vortheil” Berliner Journal, 13 January 1915; “Die Buchhandlung” Berliner Journal, 02 June 1915)