Powell, Baker & Lawson (2009)1% of all formulas in operational spreadsheets are in error.
Chen & Chan (2000)Spreadsheets are easy to use and very hard to check.
Cunha, et al (2011)Spreadsheets are notoriously error-prone.
Caulkins, Morrison, & Weidemann (2006)Your spreadsheets may be disasters in the making.
Csernoch & Biro (2013)Studies have shown that there is a high incidence of errors in spreadsheets.
Rust, et al (2006)Spreadsheets have a notoriously high number of faults.
Krishna, et al (2001)Programmers exhibit unwarranted confidence in the correctness of their spreadsheets.
Colbenz (2005)Errors in spreadsheets are as ubiquitous as spreadsheets themselves.
Irons (2003)Spreadsheet errors are pervasive, stubborn, ubiquitous and complex.
Ayalew (2007)A significant proportion of spreadsheets have severe quality problems.
Price (2006)The untested spreadsheet is as dangerous and untrustworthy as an untested program.
Burnett & Myers (2014)The software that end users are creating... is riddled with errors.
Panko & Halverson (1996)Every study that has looked for errors has found them... in considerable abundance.
Miller (2005)Untested spreadsheets are riddled with errors.
Bishop & McDaid (2007)The quality and reliability of spreadsheets is known to be poor.
Kruck & Sheetz (2001)...few incidents of spreadsheet errors are made public and these are usually not revealed by choice.
Kulesz & Ostberg (2013)Spreadsheets are more fault-prone than other software.
Caulkins, Morrison, & Weidemann (2006)People tend to believe their spreadsheets are more accurate than they really are.
Caulkins, Morrison & Weidemann (2008)Spreadsheets are commonly used and commonly flawed.
Abraham, et al (2005)Spreadsheets contain errors at an alarmingly high rate.
Paine (2001)Spreadsheets are alarmingly error-prone to write.
Raffensperger (2001)Never assume a spreadsheet is right, even your own.
Beaman, et al (2005)Errors in spreadsheets... result in incorrect decisions being made and significant losses incurred.
Panko (2007)The issue is not whether there is an error but how many errors there are and how serious they are.
Panko (2013)It is irrational to expect large error-free spreadsheets.
Panko (2008)94% of the 88 spreadsheets audited in 7 studies have contained errors.
Howard (2005)Spreadsheets... pose a greater threat to your business than almost anything you can imagine.
Panko (1999)Every study, without exception, has found error rates much higher than organizations would wish to tolerate.
Chadwick (2002)Spreadsheet errors... a great, often unrecognised, risk to corporate decision making & financial integrity.
Panko & Ordway (2005)Most large spreadsheets have dozens or even hundreds of errors.
Murphy (2007)60% of large companies feel 'Spreadsheet Hell' describes their reliance on spreadsheets.
Dunn (2010)Spreadsheets are extraordinarily and unacceptably prone to error.
Ross (1996)A lot of decisions are being made on the basis of some bad numbers.
Abraham & Erwig (2007)Spreadsheet errors have resulted in huge financial losses.
Nixon & O'Hara (2010)It is now widely accepted that errors in spreadsheets are both common and potentially dangerous.
Teo & Tan (1999)Most executives do not really check or verify the accuracy or validity of [their] spreadsheets...
Nixon & O'Hara (2010)Spreadsheet errors are still the rule rather than the exception.
Sajaniemi (1998)The results given by spreadsheets are often just wrong.
Galletta, et al (1993)Even obvious, elementary errors in very simple, clearly documented spreadsheets are... difficult to find.
Spreadsheets are notoriously error-prone: research shows that 95% contain errors.
If your spreadsheets have not been verified, then you cannot trust that they produce reliable, accuracy, and robust results.
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