Original: The Royal Swedish Academy of Sciences (2006), "Edmund Phelps’s Contributions to Macroeconomics" (see References) During this period, along with the research on the Phillips curve, Phelps also collaborated with other economists on research regarding economic growth, the effects of monetary and fiscal policy and optimal population growth.
Simplified: The Royal Swedish Academy of Sciences (2006), "Edmund Phelps’s Contributions to Macroeconomics" (see References) During this time Phelps worked with other economists on research of economic growth, the effects of monetary and fiscal policy and best population growth.