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Paraconsistent and fuzzy logic applied to company profitability analysis

Author

Listed:
  • Rodrigo P. Dill

    (Federal University of South Frontier (UFFS))

  • Newton Da Costa Jr.

    (Federal University of Santa Catarina (UFSC))

  • André A. P. Santos

    (Federal University of Santa Catarina (UFSC))

Abstract

This study proposes an application of two models based on non-classical logic, the paraconsistent logic and the fuzzy logic, in company profitability analysis. We conduct interviews with market specialists in order to identify the main explanatory variables related to company profitability and apply the paraconsistent model in order to classify the data and to attribute a degree of favorable evidence and of contrary evidence to each profitability ratio. In the fuzzy model, the collected data is analyzed and classified using inference rules and membership functions, thus assigning a qualitative variable to each profitability index. The empirical implementation indicates that both models can be used as tools for assistance and validation of opinions of specialists in the analysis of a company's profitability.

Suggested Citation

  • Rodrigo P. Dill & Newton Da Costa Jr. & André A. P. Santos, 2013. "Paraconsistent and fuzzy logic applied to company profitability analysis," Economics Bulletin, AccessEcon, vol. 33(2), pages 1348-1360.
    • Handle: RePEc:ebl:ecbull:eb-13-00129
    as

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    References listed on IDEAS

    as
    1. Edward I. Altman, 1968. "Financial Ratios, Discriminant Analysis And The Prediction Of Corporate Bankruptcy," Journal of Finance, American Finance Association, vol. 23(4), pages 589-609, September.
    2. Syau, Yu-Ru & Hsieh, Hai-Teh & Lee, E Stanley, 2001. "Fuzzy Numbers in the Credit Rating of Enterprise Financial Condition," Review of Quantitative Finance and Accounting, Springer, vol. 17(4), pages 351-360, December.
    Full references (including those not matched with items on IDEAS)

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    More about this item

    Keywords

    Paraconsistent evidential logic; Fuzzy logic; Profitability analysis;
    All these keywords.

    JEL classification:

    • M1 - Business Administration and Business Economics; Marketing; Accounting; Personnel Economics - - Business Administration
    • M4 - Business Administration and Business Economics; Marketing; Accounting; Personnel Economics - - Accounting

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