This paper explores how two main classical classification models work and generate predictions through a commercial solution of relational database management system (Microsoft SQL Server 2012). The aim of the paper is to accurately predict churn among a set of customers defined by various...

A common fraud by registered traders in the value-added tax system is under-reporting sales and over-reporting purchases. This paper models this problem by linking the level of misreporting to the risk-aversion of taxpayers and the level of transactions with final consumers. In addition, it...