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Ayrıntılı Bilimsel Program ve Bildiri Özetleri - YAEM2010

Ayrıntılı Bilimsel Program ve Bildiri Özetleri - YAEM2010

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C4-07<br />

YAEM 2010<br />

YÖNEYLEM ARAÞTIRMASI VE ENDÜSTRÝ MÜHENDÝSLÝGI 30. ULUSAL KONGRESÝ<br />

Tedarik Zinciri Yönetimi 7: Risk Management in Supply Chains<br />

2 Temmuz 2010 / 14:00 - 15:30<br />

Oturum Salonu: MDBF L055<br />

Oturum Düzenleyicisi: Çaðrý Haksöz<br />

Oturum Baþkaný: Çaðrý Haksöz<br />

Optimal Decision Rules for Product Recalls<br />

1 2<br />

Ali Devin Sezer , Çaðrý Haksöz<br />

1 Institute of Applied Mathematics, METU, Ankara, Turkey<br />

2 Faculty of Management, Sabanci Uni<strong>ve</strong>rsity, Istanbul<br />

We consider a company that has just manufactured and sold a<br />

number of copies of a product. It is known that with a small<br />

probability, it committed a manufacturing fault that requires a recall.<br />

The company is able to obser<strong>ve</strong> the expiration times of the sold items<br />

whose distribution depends on whether the fault is present or absent.<br />

At the expiration of each item, an inspection takes place that may<br />

re<strong>ve</strong>al the fault, if it exists. Based on this information, the company<br />

can recall the product anytime it pleases. On recall, each customer is<br />

paid back the price of the product. If the company is not able to recall<br />

before an inspection re<strong>ve</strong>als the fault, it pays a fine per item sold<br />

which is assumed to be much larger than the price of the product. We<br />

compute the optimal recall time that minimizes the expected cost of<br />

recall.<br />

Procurement Risk Management: A Case in Turkish Energy<br />

Industry<br />

1 2<br />

Çaðrý Haksöz , Özgür Arslan<br />

1 Faculty of Management, Sabanci Uni<strong>ve</strong>rsity, Istanbul, Turkey<br />

2 Enerjisa Enerji Üretim A.Þ., Istanbul<br />

We present the current procurement risk management practice of<br />

Enerjisa, a major energy company in Turkey. We provide results of a<br />

managerial sur<strong>ve</strong>y and interview conducted at Enerjisa, which<br />

illuminates the current perception of the critical procurement risks<br />

and how they are being managed effecti<strong>ve</strong>ly. Especially, we shed light<br />

376

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