標題: Profitability evaluation for newsboy-type product with normally distributed demand
作者: Su, R. H.
Pearn, W. L.
工業工程與管理學系
Department of Industrial Engineering and Management
關鍵字: newsboy;hypothesis testing;index;profitability evaluation
公開日期: 2013
摘要: This paper considered newsboy-type products with a normally distributed demand, and defined a product's profitability as the probability of achieving the target profit under optimal ordering condition. In order to determine whether the product is already unworthy of being ordered (or manufactured) in a competitive market, we conducted a profitability evaluation which examines whether the profitability meets a designated requirement. As the parameters mu and sigma are unknown, we introduced a new index (achievable capacity index; I-A) which has a simple form expression of the product's profitability, and found an unbiased and effective estimator of I-A to estimate the actual I-A. In addition, we utilised a statistical hypothesis testing methodology. The critical value of the test was calculated to determine the evaluation results. The sample size required for the designated power and confidence level was also investigated. An application example for a fresh food product was provided to illustrate the utilisation of the proposed approach. [Received 24 July 2010; Revised 13 February 2011; Accepted 02 May 2011]
URI: http://hdl.handle.net/11536/21074
http://dx.doi.org/10.1504/EJIE.2013.051599
ISSN: 1751-5254
DOI: 10.1504/EJIE.2013.051599
期刊: EUROPEAN JOURNAL OF INDUSTRIAL ENGINEERING
Volume: 7
Issue: 1
起始頁: 2
結束頁: 15
顯示於類別:期刊論文


文件中的檔案:

  1. 000314054100002.pdf