Analysts estimate that the 2020 Tokyo Olympic and Paralympic Games will have a positive economic impact of some ¥20 trillion.
But for small and midsize companies, which make up 99.7 percent of businesses in Japan, an up to 20-month closure of parts of the nation's biggest convention center to make way for media and broadcasting facilities is set to cost them big.
Two main halls at Tokyo Big Sight in the Odaiba waterfront district will be closed off to trade shows between April 2019 and November 2020 and the remaining halls at the facility will be shut down for the games from April to October 2020 as well.
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