The heart of an inventory model is the modeling of the supply and demand functions, according to Professor J. George Shanthikumar at the inaugural Distinguished Lecture for the new Institute of Advance Study (IAS) at City University of Hong Kong (CityU) on15 March.

美国普渡大学J. George Shanthikumar教授3月15日主持香港城市大学（城大）近期成立的高等研究院之首场杰出讲座，指出库存模型的核心是供需函数模型。