감가상각모형의 유형화에 기초한 적용방안Implementation Strategy Based on the Classification of Depreciation Models
- Other Titles
- Implementation Strategy Based on the Classification of Depreciation Models
- Authors
- 최성운
- Issue Date
- 2014
- Publisher
- 대한안전경영과학회
- Keywords
- Classification; Implementation; GDF; WDF; DAM; IDR; PDF; DDF; NOPLAT; EVA; IC
- Citation
- 대한안전경영과학회지, v.16, no.2, pp.217 - 230
- Journal Title
- 대한안전경영과학회지
- Volume
- 16
- Number
- 2
- Start Page
- 217
- End Page
- 230
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/13666
- DOI
- 10.12812/ksms.2014.16.2.217
- ISSN
- 1229-6783
- Abstract
- The purpose of this study is to develop the Generalized Depreciation Function (GDF) and Winfrey Depreciation Function (WDF) by reviewing methods for the depreciation accountings. The Depreciation Accounting Models (DAM), including straight-line model, declining-balance model, sum-of-the-year-digit model and sinking fund model presented in this paper, are reclassified into the charging pattern of increasing type, decreasing type and constant type. This paper also discusses the development of the GDFs based on convex type, concave type and constant type according to the demand pattern of product, frequency of plant usage, deterioration of time, relative inadequacy, Capital Expenditure (CAPEX) and Operating Expenditure (OPEX) of the Total Productive Maintenance (TPM). The WDFs presented in this paper depict a sudden degradation of plant performance by measuring the change of TPM activity at the midpoint of useful life of asset. The WDFs are classified into left-modal type, symmetrical type and right-modal type by varying the value of skewness and kurtosis. Moreover, three increasing patterns, such as convex, concave and linear types, are used in this paper to present the distinct identification of WFDs by using Instantaneous Depreciation Rate (IDR) in terms of Performance Depreciation Function (PDF) and Depreciation Density Function (DDF). In order to have better understanding of depreciation models, the numerical examples are used for evaluating the Net Operating Less Adjusted Tax (NOPLAT) and Economic Value Added (EVA). It is concluded that the depreciation models showing a large dispersion of EVA require the adjustment of NOPLAT and Invested Capital (IC) based on the objective cash basis and net operating activity for reducing the variation of EVA.
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