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