Shiina Ito has had fewer Chinese customers at her Tokyo jewelry shop since Beijing issued a travel warning in the wake of a diplomatic spat, but she said she was not concerned.

A souring of Beijing-Tokyo relations this month, following remarks by Prime Minister Sanae Takaichi about Taiwan, has fueled concerns about the impact on the ritzy boutiques, noodle joints and hotels where holidaymakers spend their cash.

But businesses in Tokyo largely shrugged off any anxiety.