Show 10 5 10 15 20 50 100 250 Sort by year (new to old) Actions Download search results Subscribe to news feed Your filters: cql: keyword exact "Informational frictions" Add to list Journal Article A1 open access The interplay between oil and food commodity prices : has it changed over time? Gert Peersman (UGent) , Sebastian K. Rüth and Wouter Van der Veken (UGent) (2021) JOURNAL OF INTERNATIONAL ECONOMICS. 133.