Taipei, Nov. 12 (CNA) The four Kaohsiung mayoral candidates on Saturday outlined their policies for the municipality during a live televised presentation, with the incumbent Chen Chi-mai (陳其邁) of the Democratic Progressive Party (DPP) pledging to make Kaohsiung a "high-tech city," and the opposition Kuomintang (KMT) candidate Ko Chih-en (柯志恩) vowing to push policies to stem an "exodus of the working population."