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