She spent April 2004 at the Institute for International Economic Studies ( IIES ) of Stockholm University .
From January to March 2004 , she was a visiting assistant professor at the Department of Economics of New York University .
assistant professor spent April 2004 at the Institute for International Economic Studies ( IIES ) of Stockholm University .
From January to March 2004 , she was a visiting assistant professor at the Department of Economics of New York University .