A minimum wage of $12.55 an hour in Oakland, Calif., may be the culprit for a Wal-Mart store's closure. Wal-Mart announced Jan. 15 it will close 269 stores globally, including 154 locations in the United States-affecting about 10,000 associates across the nation... snip Oakland Mayor Libby Schaaf, a Democrat, has been leading statewide efforts to raise the minimum wage to $15. "This higher city minimum wage eliminated the jobs of the very workers advocates wanted to help," said James Sherk, a research fellow in labor economics at The Heritage Foundation... snip The Wall Street Journal reported on Wednesday that most...