In dem Beitrag wird einerseits geprüft, welche Bedeutung die Gaswirtschaft für eine sichere, ausreichende, kostengünstige und umweltschonende Energiebedarfsdeckung hat. Andererseits wird versucht, das Gewicht zu ermitteln, das die Gaswirtschaft hinsichtlich der Wertschöpfung, als Investor...

This paper deals with optimizing the cost of set up, transportation and inventory of a multi-stage production system in presence of bottleneck. The considered optimization model is a mixed integer nonlinear program. We propose two methods based on DC (Difference of Convex) programming and DCA...

Decisions about residential lot size and square footage are influenced by a variety of determinants ranging from zoning regulations to neighborhood characteristics. Our theoretical analysis suggests that the property tax rate could also affect residential lot sizes and the sizes of newly...

This study deals with an imperfect EPQ (economic production quantity) price dependent inventory model over two types of cycles: in the first cycle, the retailer sells only good product with actual price and, in the second, he sells the products with a discount price. In the production run-time,...

We propose a general hierarchical procedure to address real-life job shop scheduling problems. The shop typically produces a variety of products, each with its own arrival stream, its own route through the shop and a given customer due date. The procedure first determines the manufacturing lot...

We show why a shopping mall prefers to provide parking for free and embed the parking costs in the prices of the goods. This holds if the mall has monopoly power or prices competitively; if there is parking validation or a trade-off between shopping and parking spaces. It is also the second-best...

The paper explores a number of issues related to lot size and urban density. First, trends in single-family residential lot size over the past 35 years are examined in eight counties in the state of Maryland. We find that there was a trend toward larger lot sizes in many suburban counties in the...

This paper considers the simultaneous determination of residential density and the supply of local versus remote retail services. Possible equilibrium development patterns either correspond closely to what anti-sprawl activists describe as smart growth, or to its opposite. Equilibrium and...

In this paper, we consider a seller–buyer channel in which marketing expenditure is an endogenous decision for the buyer. We assume that both the unit marketing expenditure and the unit price charged by the buyer influence the end demand for the product. We model the seller–buyer...

In this paper, we present an inventory model for deteriorating items with time varying demand and deterioration rates when the credit period depends on the retailer's ordering quantity. We also provide simple solution procedures for finding the optimal replenishment period and show in a rigorous...