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