Journal of Economics, Finance and Administrative Science

URI permanente para esta comunidadhttps://hdl.handle.net/20.500.12640/4090

La Journal of Economics, Finance and Administrative Science (JEFAS), de la Universidad ESAN, es una publicación académica de acceso abierto que presenta investigaciones revisadas por pares en administración, economía y finanzas, con un enfoque en el contexto latinoamericano e iberoamericano. Fundada en 1992 como Cuadernos de Difusión, en 2009 cambió de nombre a su actual denominación como JEFAS. Ha evolucionado en colaboración con importantes editoriales, como Elsevier y actualmente Emerald Publishing. La revista publica investigaciones de alta calidad sin costo para los autores, con el respaldo de ESAN y su compromiso con la difusión del conocimiento científico y académico, y la práctica gerencial.

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Idioma: search.filters.itemlanguage.InglésTema: search.filters.subject.América Latina

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  • Miniatura
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    Benford's law for integrity tests of high-volume databases: a case study of internal audit in a state-owned enterprise
    (Universidad ESAN. ESAN Ediciones, 2022-07-08) Morales, Héctor Rubén; Porporato, Marcela; Epelbaum, Nicolas
    Purpose: The technical feasibility of using Benford's law to assist internal auditors in reviewing the integrity of high-volume data sets is analysed. This study explores whether Benford's distribution applies to the set of numbers represented by the quantity of records (size) that comprise the different tables that make up a state-owned enterprise's (SOE) enterprise resource planning (ERP) relational database. The use of Benford's law streamlines the search for possible abnormalities within the ERP system's data set, increasing the ability of the internal audit functions (IAFs) to detect anomalies within the database. In the SOEs of emerging economies, where groups compete for power and resources, internal auditors are better off employing analytical tests to discharge their duties without getting involved in power struggles. Design/methodology/approach: Records of eight databases of an SOE in Argentina are used to analyse the number of records of each table in periods of three to 12 years. The case develops step-by-step Benford's law application to test each ERP module records using Chi-squared (χ²) and mean absolute deviation (MAD) goodness-of-fit tests. Findings: Benford's law is an adequate tool for performing integrity tests of high-volume databases. A minimum of 350 tables within each database are required for the MAD test to be effective; this threshold is higher than the 67 reported by earlier researches. Robust results are obtained for the complete ERP system and for large modules; modules with less than 350 tables show low conformity with Benford's law. Research limitations/implications: This study is not about detecting fraud; it aims to help internal auditors red flag databases that will need further attention, making the most out of available limited resources in SOEs. The contribution is a simple, cheap and useful quantitative tool that can be employed by internal auditors in emerging economies to perform the first scan of the data contained in relational databases. Practical implications: This paper provides a tool to test whether large amounts of data behave as expected, and if not, they can be pinpointed for future investigation. It offers tests and explanations on the tool's application so that internal auditors of SOEs in emerging economies can use it, particularly those that face divergent expectations from antagonist powerful interest groups. Originality/value: This study demonstrates that even in the context of limited information technology tools available for internal auditors, there are simple and inexpensive tests to review the integrity of high-volume databases. It also extends the literature on high-volume database integrity tests and our knowledge of the IAF in Civil law countries, particularly emerging economies in Latin America.
  • Miniatura
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    Reassessing the feasibility of adopting dollarization in Latin America
    (Universidad ESAN. ESAN Ediciones, 2022-07-08) Padilla, León
    Purpose: This paper analyses the possibility of Latin America's (LA) major economies adopting dollarization, considering that in the last decade macroeconomic instability has once again challenged the ability of certain economies to properly manage their own currency. Design/methodology/approach: To determine the feasibility of adopting the US dollar as official currency, the author uses the framework of optimum currency area (OCA) theory, since, in fact, dollarization is an incomplete monetary union. The author uses a structural vector autoregressive (SVAR) model to identify what type of structural shock — country-specific, regional or global — prevails in LA economies. For this purpose, the US output is used to represent the global output and determine how the shocks of the US influence the output trajectory of each LA nation. The higher the influence of the US product, the lower the costs of adopting the US dollar. Findings: The results of the variance decomposition show that the influence of the US shocks in the gross domestic product (GDP) trajectory of LA countries has significantly decreased over the last two decades, even in the currently dollarized economies. The estimates for Venezuela and Argentina show that the importance of US shocks in the trajectory of their GDP is low. Therefore, the cost of adopting the US dollar as the official currency would be high. Originality/value: In view of hyperinflation and macroeconomic imbalances in certain LA nations, the dollarization debate has resurfaced in recent years. However, the literature that empirically evaluates the feasibility of adopting dollarization as a monetary system under current economic conditions is limited.