Identification of Outliers in High Density Areas with the Use of a Quantile Regression Model

Baddeley, A., Rubak, E., Turner, R. (2015). Spatial Point Patterns: Methodology and Applications with R. CRC Press.10.1201/b19708Search in Google Scholar

Bivand, R.S., Pebesma, E., Gómez-Rubio, V. (2013). Applied Spatial Data Analysis with R. Springer New York. Retrieved from: http://link.springer.com/10.1007/978-1-4614-7618-410.1007/978-1-4614-7618-4Search in Google Scholar

Cerioli, A., Barabesi, L., Cerasa, A., Menegatti, M., Perrotta, D. (2019). Newcomb-Benford law and the detection of frauds in international trade. Proceedings of the National Academy of Sciences, 116 (1), 106–115. DOI: 10.1073/pnas.1806617115.10.1073/pnas.1806617115Search in Google Scholar

Cerioli, A., Perrotta, D. (2014). Robust clustering around regression lines with high density regions. Advances in Data Analysis and Classification, 8 (1), 5–26. DOI: 10.1007/s11634-013-0151-5.10.1007/s11634-013-0151-5Search in Google Scholar

Diggle, P.J. (2003). Statistical Analysis of Spatial Point Patterns (2 edition). Hodder Education Publishers.Search in Google Scholar

EC Europa (2019a). EU expenditure and revenue 2014–2020 [Text]. European Commission – European Commission. Retrieved from: https://ec.europa.eu/info/about-european-commission/eu-budget/documents-and-figures/documents-test_en.Search in Google Scholar

EC Europa (2019b, August 1). Customs declaration [Text]. Taxation and Customs Union – European Commission. Retrieved from: https://ec.europa.eu/taxation_customs/business/customs-procedures/general-overview/customs-declaration_en.Search in Google Scholar

EC Europa (2019c, August 1). Customs Risk Management Framework (CRMF) [Text]. Taxation and Customs Union – European Commission. Retrieved from: https://ec.europa.eu/taxation_customs/general-information-customs/customs-risk-management/measures-customs-risk-management-framework-crmf_en.Search in Google Scholar

EC Europa (2019d, August 1). EU Customs Union – unique in the world [Text]. Taxation and Customs Union – European Commission. Retrieved from: https://ec.europa.eu/taxation_customs/facts-figures/eu-customs-union-unique-world_en.Search in Google Scholar

EC Europa (2019e, August 1). The Combined Nomenclature [Text]. Taxation and Customs Union – European Commission. Retrieved from: https://ec.europa.eu/taxation_customs/business/calculation-customs-duties/what-is-common-customs-tariff/combined-nomenclature_en.Search in Google Scholar

European Parliament (2018, 10). European Parliament resolution – Fighting customs fraud and protecting EU own resources. Retrieved from: http://www.europarl.europa.eu/doceo/document/TA-8-2018-0384_EN.html.Search in Google Scholar

Khmaladze, E. (2013). Note on distribution free testing for discrete distributions. The Annals of Statistics, 41 (6), 2979–2993. DOI: 10.1214/13-AOS1176.10.1214/13-AOS1176Search in Google Scholar

Khmaladze, E.V., Koul, H.L. (2004). Martingale transforms goodness-of-fit tests in regression models. The Annals of Statistics, 32 (3), 995–1034. DOI: 10.1214/009053604000000274.10.1214/009053604000000274Search in Google Scholar

Khmaladze, E.V., Koul, H.L. (2009). Goodness-of-fit problem for errors in nonparametric regression: Distribution free approach. The Annals of Statistics, 37 (6A), 3165–3185. DOI: 10.1214/08-AOS680.10.1214/08-AOS680Search in Google Scholar

Oroszki, J. (2019). Fraud risk for the EU budget – what the ECA recommends. ECA Journal. Fraud and Corruption, 2, 26–33.Search in Google Scholar

Riani, M., Atkinson, A., Cerioli, A. (2012). Problems and Challenges in the Analysis of Complex Data: Static and Dynamic Approaches. In: Advanced Statistical Methods for the Analysis of Large Data-Sets (pp. 145–157). Springer, Berlin, Heidelberg. Retrieved from: https://link.springer.com/chapter/10.1007/978-3-642-21037-2_14.Search in Google Scholar

Ruiz, C.S. (2019). How criminals evade VAT and how we use new techniques to detect it. ECA Journal. Fraud and Corruption, 2, 37–44.Search in Google Scholar

Special report No. 01/2019: Fighting fraud in EU spending: Action needed (n.d.). Retrieved from: https://www.eca.europa.eu/en/Pages/DocItem.aspx?did=48858 (26.10.2019).Search in Google Scholar

Thomas, I. (2018, 01). Parliamentary questions- Fighting customs fraud and protecting EU own resources. Retrieved from: http://www.europarl.europa.eu/doceo/document/O-8-2018-000007_EN.html.Search in Google Scholar

Van der Paal, J., Nurk, A., De Vlieger, D., Janne, H., De Ramon, M., Heeren, P. (2019). Protection of EU financial interest on customs and VAT: Cooperation of national tax and customs authorities to prevent fraud (PE 636.470; Policy Department D for Budgetary Affairs, p. 112).Search in Google Scholar