Bayer reorganizes in response to growth

In this article the Head of Strategic Planning at Bayer AG describes the new corporate structure which was introduced into the company in 1984, and the considerations which led to its development and implementation.     

The use of formal inventory control models: A preliminary survey

Of the many papers and texts on the subject of inventory control, relatively few report the successful implementation of systems based on formal mathematical models developed with specific objectives in mind. This could be considered rather strange in the light of the relatively high number of papers reporting the development of models for dealing with a multitude of different hypothetical situations, and the widespread availability of computer systems capable of exploiting such models. Various reasons for this anomaly can be put forward. This paper reports the results of a preliminary survey designed to investigate this more deeply, and draws some necessarily tentative conclusions relating to factors contributing to the successful application of such systems.     

The effects of seasonal demand on depot location

Many of the cost functions associated with depot location algorithms assume an overall demand for a fixed period, usually one year. This paper describes an investigation into the effect of high seasonality within such demand figures on the optimal location of storage facilities. The preliminary results indicate that a more flexible approach for certain products could be worthwhile.     

Existence of unbiased covariance components estimators

The condition of PINCUS (1974) for the estimability of covariance components in normal models is extended to the case of singular covariance matrices     

微小經濟體旅遊業的宏觀經濟分析及其對澳門的啟示(英文)

一個地區旅遊業是否成功一般是用旅客到達數目和旅遊業毛收入來衡量,而通常忽略了旅遊業發展的潛在成本及其對該地區的不良經濟社會影響。在宏觀經濟理論的框架下,結合一些旅遊業主導的微小經濟體的相關統計數字,本文指出旅遊業對於地區的經濟影響和分配效應。希望相關的政策制定者關注旅遊業實際的而不是單純的賬面利潤,以制定出更全面、更有經濟效益的旅遊策略。