China will account for $103 billion of those losses -- or 0.8 per cent of its GDP. The rest of developing Asia would lose 22 billion dollars or 0.2 per cent of its GDP.
"There are many uncertainties about Covid-19, including its economic impact," said ADB Chief Economist Yasuyuki Sawada on Friday.
"This requires the use of multiple scenarios to provide a clearer picture of potential losses. We hope this analysis can support governments as they prepare clear and decisive responses to mitigate the human and economic impacts of this outbreak."
The analysis, The Economic Impact of the Covid-19 Outbreak on Developing Asia, presents full details on the scenarios considered.
It also presents an estimated impact on individual developing Asian economies -- and on sectors within these economies -- including under a hypothetical worst-case scenario for a given economy in the event of a significant outbreak.
ADB said these should not be interpreted as predictions that an outbreak will occur but are meant to provide guidance for governments as they consider appropriate responses.
ADB's response to Covid-19 to date includes two million dollars announced on February 7 to enhance detection, prevention, and response in China and the Greater Mekong Subregion.
Another two million dollars announced February 26 to support response in all its developing members and a 18.6 million dollar private sector loan signed on February 25 to Wuhan-based pharmaceutical distributor Jointown Pharmaceutical Group to support the continued supply of essential medicines and personal protective equipment.
ADB said it stands ready to provide further support to its developing members in their efforts to respond to the adverse impact of Covid-19.
ADB will use appropriate means to address the identified needs including through existing and new financial assistance, emergency assistance lending, policy-based lending, private sector investment, and knowledge and technical assistance.
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