Review of Economics and Statistics (May 2000) and N. Gregory Mankiw, Macroeconomics, 4th edition (2000), p.
Gregory mankiw wrote both review of economics and statistics and macroeconomics, 4th edition. 
mnli hypothesis: Gregory mankiw wrote both review of economics and statistics and macroeconomics, 4th edition.  premise: Review of Economics and Statistics (May 2000) and N. Gregory Mankiw, Macroeconomics, 4th edition (2000), p.