Global international travel demand is expected to drop 57 percent in 2020, dented by tighter border controls and quarantine measures imposed in an effort to stem the coronavirus outbreak, according to a British research firm.Demand for overseas tourism will not return to the level in 2019 until 2024, reflecting the economic effects of the pandemic and lingering negative sentiment toward international travel, including the impact on both leisure and business travel, Oxford Economics Ltd. said in a recent report.Many countries are beginning to reopen their borders. "However, there is immense …READ FULL ARTICLE