Britain's Finance Minister Rachel Reeves defended her economic record ahead of an expected Labour leadership transition, while investors assessed whether the incoming government would retain fiscal discipline amid slowing growth, persistent inflation and rising geopolitical risks.

Reeves will use her third Mansion House speech to tell City chiefs that the next government must “maintain” fiscal credibility and stability.

Britain's Finance Minister Rachel Reeves defended her economic record ahead of an expected Labour leadership transition, while investors assessed whether the incoming government…