On 1 December 2009, Standard & Poor's upgraded Bulgaria's investment outlook from "negative" to "stable," which made Bulgaria the only country in the European Union to receive positive upgrade that year.
2009年12月1日， 标准普尔将保加利亚的投资前景从“负面”提高到“稳定”，使得保加利亚成为欧盟唯一获得当年正面升级的国家。