How a student took on eminent economists on debt issue - and won By Edward Krudy
NEW YORK (Reuters) - When Thomas Herndon, a student at the University of
Massachusetts Amherst's doctoral program in economics, spotted possible
errors made by two eminent Harvard economists in an influential research
paper, he called his girlfriend over for a second look.
As they poured over the spreadsheets Herndon had requested from Harvard's
Carmen Reinhart and Kenneth Rogoff, which formed the basis for a widely
quoted 2010 study, they spotted what they believed were glaring errors.....
In the world of economic luminaries, it doesn't get much bigger than
Reinhart and Rogoff, whose work has had enormous influence in one of the
biggest economic policy debates of the age.....
Their study, which found economic growth slows dramatically when a
government's debt exceeds 90 percent of a country's annual economic output,
has been cited by policymakers around the world as justification for
slashing spending......
Did
a Spreadsheet Error Cost You Your Job? By Dean Baker
Yahoo! Finance | The
Exchange – Wed,
Apr 17, 2013
Did an Excel error cost you your job? This is what people around the
world should be asking after researchers at the University of
Massachusetts uncovered a
serious
calculation mistake. The mistake was in an enormously
influential paper by Carmen Reinhart and Ken Rogoff, two prominent
economists, which purports to show that high levels of government
debt lead to slow economic growth.
This paper has been widely cited by political figures around
the world who have been pushing the case for cutting back
government spending and raising taxes. House Budget Committee
Chairman Paul Ryan famously cited Reinhart and Rogoff when he
laid out his budget earlier this year. So have many of the
politicians now pushing for cuts in Social Security and
Medicare.
Reinhart and Rogoff’s work has had an extraordinary impact
for an academic paper. This is why the calculation error is so
important. When the error is corrected, the relationship
between debt levels and economic growth is far less clear.....