Air cargo ended 2022 on a weak streak that is expected to continue well into the first half of the year, with logistics companies hanging hopes for better demand on retail inventory clearance bottoming out by summer. Uncertainty is the watchword for 2023. Any progress in freight transport could be undone by a recession predicted by most economists or more unexpected geopolitical events. Overall shipment volumes were down 8% in December versus the same period the prior year. More importantly, because 2021 was such an unusually strong year for comparison purposes due to pandemic-led distortions, demand was 13% below the...