Wong Sworn In as Singapore’s Fourth Prime Minister as Lee Hsien Loong Bows Out

KUALA LUMPUR, Malaysia — Singapore’s deputy leader Lawrence Wong was sworn in Wednesday as the nation’s fourth prime minister in a carefully planned political succession designed to ensure continuity and stability in the Asian financial hub.

A U.S.-trained economist, Wong, 51, succeeds Lee Hsien Loong, 72, who stepped down after two decades at the helm. Lee’s departure marked the end of a family dynasty led by his father Lee Kuan Yew, Singapore’s first leader who built the colonial trading...