By Alex Dobuzinskis May 6 (Reuters) - Emmeryville, a small city in the San Francisco Bay Area, has given initial approval to the nation's highest minimum wage by setting baseline pay at $16 an hour in 2019, with gradual increases leading up to that level. The 5-0 vote on Tuesday by the city council in Emmeryville, a community of about 10,000 residents, follows moves by several major U.S.