Viewsroom: How long should a leader lead?
b'China\\u2019s President Xi Jinping can now stay in power for life. Goldman Sachs CEO Lloyd Blankfein seems ready to retire after 12 years at the top. Yet five years may be the ideal length of service. Breakingviews columnists discuss the limitations to limitless rule. See acast.com/privacy for privacy and opt-out information.\\nLearn more about your ad choices. Visit megaphone.fm/adchoices'