求翻译：瑞典皇家科学院宣布，将2011年诺贝尔经济学奖授予来自美国纽约大学的托马斯•萨金特和普林斯顿大学的克里斯托弗•西姆斯,以表彰“他们在宏观经济学中对成因及其影响的实证研究”。是什么意思？

Royal Swedish Academy of Sciences announced the 2011 Nobel Prize from the United States • Thomas Sargent New York University and Princeton University • Christopher Sims, in recognition "for their cause in macroeconomics and The impact of empirical research. "

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正在翻译，请等待...

Sweden's Royal Academy of Sciences announced that the 2011 Nobel economics prize from the United States kelisituofu·ximusi of Thomas j.Sargent at New York University and Princeton University, in recognition of "they are on the macro-economic reasons and empirical study on the effect of".

Royal Swedish Academy of Sciences announced the 2011 Nobel Prize from the United States • Thomas Sargent New York University and Princeton University • Christopher Sims, in recognition "for their cause in macroeconomics and The impact of empirical research. "