The city of Tokyo on Jan. 7 filed its bid for the 2020 Summer Olympics and Paralympics with the International Olympics Committee in Switzerland. Tokyo failed in its bid to host the 2016 Olympics, losing to Rio de Janeiro.

It is said that Tokyo lost the 2016 bid because its lobbying activities aimed at IOC members did not go well. If Tokyo expects to succeed this time, bidding committee members had better hone their lobbying skills and powers of persuasion.

Besides Tokyo, Istanbul and Madrid have announced their candidacy for the 2020 Summer Olympics and Paralympics. Until Sept. 7 when the IOC announces the host city in Buenos Aires, the three cities will carry out full-fledged promotional activities at three large IOC-related meetings — May, June and July — in Europe.