Market Watch:  “Restaurateur Cecilia Chiang retired in 1991 from her business but you can still find her cooking at home or enjoying meals at restaurants in her neighborhood.The 98-year-old is well-known for her Mandarin Restaurant in San Francisco, which she opened in 1961 and sold in 1991. She received the James Beard Foundation’s Lifetime Achievement Award in 2013, was featured in the book “200 Women: Who Will Change the Way You See the World” and was the subject of a PBS documentary called “Soul of a Banquet.”