Macroeconomics, 6e About the Author Olivier Blanchard : A citizen of France, Olivier Blanchard has spent most of his professional life in Cambridge, Massachusetts. After obtaining his PhD in economics at the Massachusetts Institute of Technology in 1977, he taught at Harvard University, returning to MIT in 1982. He was chair of the economics department from 1998 to 2003. Blanchard earned his Bachelors degree at Paris Dauphine University, and his Ph.D. in Economics in 1977 at MIT.  David R Johnson: He is Professor of Economics at Wilfrid Laurier University. Professor Johnson's areas of specialty are macroeconomics, international finance and the economics of education. He has an ongoing appointment as C.D. Howe Institute Education Policy Scholar. He most recently was Fulbright Scholar at the University of California, Santa Barbara from January to June 2008. Professor Johnson received his undergraduate degree from the University of Toronto in 1978. He received his Masters degree from the University of Western Ontario and his PhD from Harvard University