1% of all formulas in operational spreadsheets are in error.
Powell, Baker, & Lawson (2009)
Even obvious, elementary errors in very simple, clearly documented spreadsheets are... difficult to find.
Galletta, et al (1993)
60% of large companies feel 'Spreadsheet Hell' describes their reliance on spreadsheets.
Murphy (2007)
Most large spreadsheets have dozens or even hundreds of errors.
Panko & Ordway (2005)
It is irrational to expect large error-free spreadsheets.
Panko (2013)
Spreadsheets contain errors at an alarmingly high rate.
Abraham, et al (2005)
The software that end users are creating... is riddled with errors.
Burnett & Myers (2014)
Spreadsheets are extraordinarily and unacceptably prone to error.
Dunn (2010)
Every study that has looked for errors has found them... in considerable abundance.
Panko & Halverson (1996)
Spreadsheet errors... a great, often unrecognised, risk to corporate decision making & financial integrity.
Chadwick (2002)
The quality and reliability of spreadsheets is known to be poor.
Bishop & McDaid (2007)
Spreadsheets are more fault-prone than other software.
Kulesz & Ostberg (2013)
Spreadsheets are often hard, if not impossible, to understand.
Mireault & Gresham (2015)
The untested spreadsheet is as dangerous and untrustworthy as an untested program.
Price (2006)
Spreadsheets have a notoriously high number of faults.
Rust, et al (2006)
People tend to believe their spreadsheets are more accurate than they really are.
Caulkins, Morrison, & Weidemann (2006)
Errors in spreadsheets are as ubiquitous as spreadsheets themselves.
Colbenz (2005)
A significant proportion of spreadsheets have severe quality problems.
Ayalew (2007)
Spreadsheets are alarmingly error-prone to write.
Paine (2001)
Spreadsheets are notoriously error-prone.
Cunha, et al (2011)
Spreadsheet errors are still the rule rather than the exception.
Nixon & O'Hara (2010)
Spreadsheets... pose a greater threat to your business than almost anything you can imagine.
Howard (2005)
Research on spreadsheet errors is substantial, compelling, and unanimous.
Panko (2015)
Spreadsheet shortcomings can significantly hamper an organization's business operation.
Reschenhofer & Matthes (2015)
Despite being staggeringly error prone, spreadsheets are a highly flexible programming environment.
Abreu, et al (2015)
Your spreadsheets may be disasters in the making.
Caulkins, Morrison, & Weidemann (2006)
Spreadsheets are the most popular live programming environments, but they are also notoriously fault-prone.
Hermans & van der Storm (2015)
...few incidents of spreadsheet errors are made public and these are usually not revealed by choice.
Kruck & Sheetz (2001)
It is now widely accepted that errors in spreadsheets are both common and potentially dangerous.
Nixon & O'Hara (2010)
Most executives do not really check or verify the accuracy or validity of [their] spreadsheets...
Teo & Tan (1999)
Spreadsheet errors have resulted in huge financial losses.
Abraham & Erwig (2007)
Untested spreadsheets are riddled with errors.
Miller (2005)
Developing an error-free spreadsheet has been a problem since the beginning of end-user computing.
Mireault (2015)
Never assume a spreadsheet is right, even your own.
Raffensperger (2001)
Spreadsheets are easy to use and very hard to check.
Chen & Chan (2000)
Despite overwhelming and unanimous evidence... companies have continued to ignore spreadsheet error risks.
Panko (2014)
The results given by spreadsheets are often just wrong.
Sajaniemi (1998)
Errors in spreadsheets... result in incorrect decisions being made and significant losses incurred.
Beaman, et al (2005)
Spreadsheets are commonly used and commonly flawed.
Caulkins, Morrison, & Weidemann (2008)
Spreadsheet errors are pervasive, stubborn, ubiquitous and complex.
Irons (2003)
Spreadsheet development must embrace extensive testing in order to be taken seriously as a profession.
Bock (2016)
94% of the 88 spreadsheets audited in 7 studies have contained errors.
Panko (2008)
Spreadsheets are dangerous to their authors and others.
Durusau & Hunting (2015)
Programmers exhibit unwarranted confidence in the correctness of their spreadsheets.
Krishna, et al (2001)
Spreadsheets can be viewed as a highly flexible programming environment for end users.
Abreu, et al (2015)
Studies have shown that there is a high incidence of errors in spreadsheets.
Csernoch & Biro (2013)
Overconfidence is one of the most substantial causes of spreadsheet errors.
Sakal, et al (2015)
The issue is not whether there is an error but how many errors there are and how serious they are.
Panko (2007)
Every study, without exception, has found error rates much higher than organizations would wish to tolerate.
Panko (1999)
A lot of decisions are being made on the basis of some bad numbers.
Ross (1996)
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