Nissan Motor shares slumped 6% in Tokyo trade Friday, a day after the Japanese automaker said it would cut 9,000 jobs and a fifth of its manufacturing capacity as it struggles with sales in China and the United States.

“In this new climate and until we have more details on the restructuring plans, it is difficult to gauge whether Nissan will be able to reduce fixed costs as quickly as last time,” Goldman Sachs Japan Co. analyst Kota Yuzawa wrote in a note. The cost ...

Nissan's chief executive acknowledged the company didn’t respond quickly or flexibly enough to global changes, including market tastes and soaring material costs.