KEY POINTS
  • Allegations of impropriety by ousted Nissan chairman Carlos Ghosn raise questions about board oversight at the automaker, experts say.
  • Ghosn was arrested on Nov. 19 amid allegations of under reporting compensation and remains in custody.
  • Boards of directors "have collective responsibility" and Nissan's "needs to do some soul-searching," said Jamie Allen, secretary general of the Asian Corporate Governance Association.
A general view of Nissan Crossing showroom in the Ginza district on November 21, 2018 in Tokyo, Japan.

Turmoil at Japan's Nissan Motor surrounding allegations of impropriety by ousted chairman Carlos Ghosn raises questions about the oversight role of the company's board of directors, corporate governance experts said this week.

Ghosn, long seen as a superstar of the global auto industry, was arrested last month after allegedly under reporting compensation and misusing assets.