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Gadetska, S, Dubnitskiy, V, Lukin, V and Khodyrev, A (2019)

Application of Benfordís law (first-digit law, anomalous numbers law) in financial audit

Ivan Kozhedub Kharkiv National Air Force University (Knafu) Scientific Publications.

ISSN/ISBN: Not available at this time. DOI: 10.30748/soi.2019.157.03

Note - this is a foreign language paper: RUS



Abstract: A separate group among documentary control instruments are calculation analytical methods, among them Benfordís law analysis of financial reports has recently acquired wide application. This law postulates that distribution of digits in numbers may be not random, but meeting a certain regularity. This regularity is just what is used in audit practice. Benfordís law is an empirical principle. It application enables inspection of financial reports for eventual forgery. It does not ensure unambiguous conclusion as regards actual violation of rules, but indicates eventual possibility of such violations. This work dwells on peculiarities of Benfordís law application in audit practice. It includes statistical checking of the model for appearance of sequences meeting Benfordís law; comparison between pairs of histograms generated by data of different model observations; statistical checking of Benfordís law correspondence to the data of actual financial documents. In order to check correspondence of obtained data to Benfordís law classical criterion and information measure of deviation were used. It was shown the models existing as per today are based on logarithmic transformation of random numbers evenly distributed along section actually cause appearance of sequences meeting Benfordís law. It6 was shown that sample size, beginning from 100 observations, does not affect modeling result. In the course of numerical modeling some cases happened when distribution of first digits in pairs of histograms did not meet Benfordís law, despite the fact that models of their obtaining were substantially different. For statistical checking of Benfordís law correspondence to data of actual financial documents data were used from balance sheet items of one of the largest Ukrainian companies for three time periods. In the course of data preparation to ensure correct comparisons a method of their preparation was developed with due consideration of the peculiarities of existing accounting regulations. Results of the analysis showed that in only one out of three actual balance sheets first digit distribution met Benfordís law. Nevertheless, a conclusion was made that suitability of Benfordís law application to financial audit may be determined only after subsequent research under ea special program.


Bibtex:
@article{, author = {S. Gadetska and V. Dubnitskiy and V. Lukin and A. Khodyrev}, title = {Application of Benfordís law (first-digit law, anomalous numbers law) in financial audit}, journal = {Ivan Kozhedub Kharkiv National Air Force University (Knafu) Scientific Publications}, year = {2019}, url = {http://www.hups.mil.gov.ua/periodic-app/article/19323/eng}, doi = {10.30748/soi.2019.157.03}, }


Reference Type: Journal Article

Subject Area(s): Accounting