Marcelo Botelho da Costa Moraes

Utilização de redes neurais artificiais para avaliação socioeconômica: uma aplicação em cooperativas

Resumen pt: No presente trabalho, apresenta-se e discute-se a utilizacao de Redes Neurais Artificiais (RNA) para a mensuracao do desempenho socioeconomico aplicado e...

Stochastic Cash Flow Management Models: A Literature Review Since the 1980s

Defining cash balance is a classic problem in firms’ financial management. For this reason, the aim of this study is to carry out a literature review, presenting the main cash flow management models from the Baumol and Tobin models in 1950s, to Miller–Orr model in 1960s and their development since the 1980s, focused essentially in stochastic models, with publication in economic, financial, and operation research journals. Thus, this chapter provides a review on cash balance management models in order to obtain a more consistent model on a par with investment analysis, observing the characteristics associated with cash maintenance, as well as diversification of financial applications and resources and the lack of literature in stochastic models for this problem.

Cash Management Policies by Evolutionary Models: a Comparison Using the Miller-Orr Model

This work aims to apply genetic algorithms (GA) and particle swarm optimization (PSO) to managing cash balance, comparing performance results between computational models and the Miller-Orr model. Thus, the paper proposes the application of computational evolutionary models to minimize the total cost of cash balance maintenance, obtaining the parameters for a cash management policy, using assumptions presented in the literature, considering the cost of maintenance and opportunity for cost of cash. For such, we developed computational experiments from cash flows simulated to implement the algorithms. For a control purpose, an algorithm has been developed that uses the Miller-Orr model defining the lower bound parameter, which is not obtained by the original model. The results indicate that evolutionary algorithms present better results than the Miller-Orr model, with prevalence for PSO algorithm in results.

Sistemas de informação contábeis: uma abordagem orientada a objetos com agentes inteligentes

Accounting aims at the treatment of information related to economic events within organizations. In order to do so, the double entry method is used (debt and credit accounting), which only considers monetary variations. With the development of information technologies, accounting information systems are born. In the 1980’s, the REA model (economic Resources, economic Events and economic Agents) is created, which focuses on accounting information records, based on the association of economic resources, economic events and economic agents. The objective of this work is to demonstrate an object-oriented modeling with intelligent agents use, for information development and analysis focused on users. The proposed model is also analyzed according to accounting information quality, necessary for accounting information users, capable to comply with the needs of different user groups, with advantages in applications.

Determinants of corporate cash holdings in times of crisis: insights from Brazilian sugarcane industry private firms

The decision-making process regarding cash allocation, especially in times of recession, is somewhat challenging. Thus, the aim of this study is to evaluate the effects of the financial crisis in cash holdings of privately-held firms in the Brazilian sugarcane industry. For this purpose, a unique, hand-collected panel data of 31 firms for the period from 1998 to 2015 was used. The results show that the private firms of the industry maintain higher levels of cash than the average found by studies with Brazilian public companies. Furthermore, between the two dummy variables used, representing the subprime crisis and the most recent economic crisis in Brazil, only the second one was significant. Finally, in order to overcome the adverse conditions of the current Brazilian economic crisis, it was observed an increase in cash holdings, which, in turn, denotes the relevance of precautionary reasons in the understanding of cash management.