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