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대여산업을 위한 최적대여기간의 특성Characteristics of the Optimal Rental Period in Rental Industries

Authors
박해철조재은
Issue Date
Jun-2010
Publisher
한국경영학회
Keywords
대여기간; 대여산업; 이익함수; 재고유지비용; 재고부족비용; rental period; rental industry; profit function; inventory holding cost; shortage cost
Citation
경영학연구, v.39, no.3, pp 835 - 849
Pages
15
Journal Title
경영학연구
Volume
39
Number
3
Start Page
835
End Page
849
URI
https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/34274
ISSN
1226-1874
Abstract
대여산업 공급사슬의 말단에 있는 대여 소매업체의 이익을 극대화하기 위한 최적대여기간의 특성과 대여기간이라는 변수가 지니는 경영적 측면에서의 시사점들을 분석하였다. 이를 위해 대여업체의 이익을 결정하는 주요한 변수인 대여가격이시장에서 주어진 상태에서, 대여수요의 크기가 대여기간의 함수일 때 대여업체의 이익함수의 성격을 추론하였다. 이를 바탕으로 최적대여기간의 이론적인 상한을 발견하였으며, 또한 이에 근거하여 최적대여기간이 단기간이 되어야 하는 경우의제반 조건을 유도해내었다. 그리고 대여업의 영업여건에 있어서 주요한 변수인 재고유지비용과 재고부족비용 및 제품구입비용 등이 변할 경우 최적대여기간이 어떻게 영향을 받게 되는지를 분석하였다. 구체적으로 재고유지비용과 재고부족비용이 각각 상승하는 경우에는최적대여기간은 상승 전보다 단축되어야 대여업체의 이익에 유리하다. 또한 제품구입비용이 상승하는 경우에도 최적대여기간은 역시 제품구입비용의 상승 전보다 단축되어야 수익성 제고에 유리하다.
There have been many studies trying to understand and construct sound theoretical schemes analyzing the characteristics of the rental industries such as DVD rental industry. Most of the researches have concentrated on finding the optimal rental price to maximize the profit of a retail rental company. On the other hand, we observe few efforts to optimize another important managerial factor, which is the rental period. Especially, if the rental demand is affected by the rental price or the rental period, then it is not that simple to solve such problems, and we find some meaningful implications though. We investigate the characteristics of the optimal rental period which maximizes the profit of a retail rental company, and we produce several managerial implications based on the results. We assume the rental price is already given exogenously and the rental demand is affected by the length of the rental period. In other words, the model assumes the corresponding rental demand increases if the rental period increases. On the other hand, the corresponding rental demand decreases if the rental period decreases. First, we analyze the shape of the profit function as a function of the rental period, and find that there is a certain upper-bound value for the optimal rental period. Also we find that the profit function is a concave function of the rental period if the rental period exists below a certain threshold, otherwise the concavity cannot be guaranteed. Based on those analyses, we provide some conditions and limitations for the optimal rental period to be a relatively short term such as 1 or 2 periods. Also, we develop a theoretical scheme which shows patterns of the optimal rental period when some important managerial factors such as unit inventory holding cost, unit inventory shortage cost, and unit cost of the product changes, respectively. For instance, if unit inventory holding cost increases, then a manager should make the optimal rental period shorter than the present period to depend their profitability as much as possible. Similarly, if unit inventory shortage cost increases, then a manager should make the optimal rental period shorten either. Finally if the unit cost of the product increases, then a manager also should make the optimal rental period shorten in the same manner.
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