“…Various papers investigated whether there is a so‐called “J‐curve,” with devaluations leading to a short‐run deterioration of the TB but a long‐run improvement (see Bahmani‐Oskooee, ; Rahman, Mustafa, & Burckel, ; Himarios, ; Rose & Yellen, ; Briguglio, ; Noland, ; Rose, ; Berument & Dincer, ), with mixed results. Most studies use bilateral aggregate data (see, e.g., Boyd, Caporale, & Smith, ; Lal & Lowinger, ; Onafuwora, ; McDaniel & Agama, ; Fullerton & Sprinkle, ; Narayan, ; Bahmani‐Oskooee & Hegerty, ; Dash, ; Costamagna, ), again providing mixed evidence. However, as pointed out by Rose and Yellen (), there might be an “aggregation bias” affecting those results.…”