Spain got credit rating upgrades from all three major rating agencies last week, as Fitch and Moody’s joined S&P in acknowledging how well the country’s economy is doing compared to the rest of Europe. On Friday, Fitch raised Spain’s long-term rating from “A-” to “A” because of good growth prospects ahead. The agency said better productivity, wages that haven’t grown too fast, and lower energy prices have made Spain more competitive globally and strengthened private sector balance sheets.