The long-standing slogan of 7-Eleven in Japan for many years was chikakute benri, meaning ¡°close and convenient.¡± It neatly sums up the chain¡¯s value proposition: Sure, you pay a bit more to shop there, but the convenience more than makes up for it.

These days, though, it feels like a lot of time is being wasted at Seven & I Holdings, the parent company that¡¯s the target of a takeover proposal from Canada¡¯s Alimentation Couche-Tard.

Months of attempting to bring together a coalition of unlikely partners to keep the firm in Japanese hands through a management buyout ¡ª which involved the founding family, local banks, private equity and, most unusually, Itochu, the owner of rival chain FamilyMart ¡ª have come to nothing.