In this paper, we develop an extension of the newsvendor model with initial inventory. In addition to the usual quantity ordered at the beginning of the horizon and the usual quantity salvaged at the end of the horizon, we introduce a new decision variable: a salvage opportunity at the beginning...

We develop a stochastic two-period production/inventory planning model, which combines the use of information updating process with the flexibility of different delivery lead-times ordering strategy. Several decision variables are used: two orders are placed at the beginning of the first and...

We propose a stochastic programming approach for quantitative analysis of supply contracts, involving flexibility, between a buyer and a supplier, in a supply chain framework. Specifically, we consider the case of multi-periodic contracts in the face of correlated demands. To design such...

The production control, via hedging point policies, of a single part type manufacturing system with stochastic capacity and demand is discussed. In the present paper, several feasible operational modes may correspond to equal hedging points. For such generalized hedging point policies, we...

A proposed single-product, stochastic, two-period inventory control model combines demand forecast updating with the flexibility of two supply sources. Demand is modeled by two independent, random variables over a two-period selling season. At the beginning of the first period, two quantities...

Based on GIS, RS technology and fractal theory, this paper analyzes land use type of a southwest town in 2010. It obtains fractal model, fractal dimension and stability index of land use types, which will provide favorable reference for healthy social and economic development of this town and...

In this paper, we introduce the gray correlation method of risk evaluation in meteorological disaster losses based on historical disaster data in China (mainland) and apply the improved gray relational analysis model (the triangular gray relational model) to the risk evaluation of rainstorm and...

Patent thickets, or an explosion in complementary patents causing resource constraints, have been known to affect firm market value by increasing firms’ technology transaction costs and reducing revenue. This study conducts an empirical inspection on how social network effect and patent...