Tesla is to cut more than a tenth of its workforce worldwide, equivalent to an estimated 14,000 employees, the Electrek tech publication reported on Monday, citing an internal email from Tesla boss Elon Musk. As part of efforts to cut costs and increase productivity, “we have done a thorough review of the organization and made the difficult decision to reduce our headcount by more than 10% globally,” Musk writes, according to the email cited by Electrek. Tesla’s staff complement stood at more than 140,000 at the end of last year, according to its annual report. Tesla surprised analysts by repo…