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The Numerical Reliability of Econometric Software

B. D. McCullough1; Hrishikesh D. Vinod2

1 Federal Communications Commission · 2 Fordham University

Journal of Economic Literature 1999

Numerous examples show that some econometric software packages contain serious flaws, and that users cannot safely assume that their software is accurate. A brief survey of the fundamentals of computer arithmetic discusses the sources of numerical error and emphasizes that computer arithmetic is not at all like pencil-and-paper arithmetic. Both users and developers of econometrics software should first pay attention to accuracy, and only later consider user-friendliness. Details are provided for assessing the accuracy of basic estimation routines, statistical distributions, and random number generators. More accuracy benchmarks are needed, especially for specialized econometric procedures.

DOI
10.1257/jel.37.2.633
Volume
37 (2)
Pages
633-665
Language
en
Export
BibTeX
Sources
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