We study a multidimensional screening problem with minimal restrictions on valuations. Our ?-relaxation of the constraints excludes bunching and cycles in the graph of active incentive-compatibility constraints. Therefore, the Lagrange multipliers do exist and enable us in characterizing...

This paper examines the impact of introducing high-speed trains on consumer welfare using South Korean transportation industry data. The model treats the rail company's choice of train schedules as endogenous in order to take the firm's choices of product line into account. I estimate a model of...

Данная статья касается необходимости разработки конкурентоспособной товарной линии как способа повышения прибыльности предприятия. Обоснована актуальность...

The article considers a necessity of development of a competitive product line as a method of increase of profitability of a company. It substantiates urgency of search for new technical ideas and solutions on improvement of a basic product. Achievement of optimal correlation between its...

A magyar mezőgazdaság és ezzel a magyar vidék elhúzódó válsága szinte kikényszeríti, hogy az egyes kormányprogramokban, nemzeti fejlesztési tervekben, területi gazdasági stratégiákban megváltó megoldásokat vonultassanak fel. Ãgy kapott kiemelt figyelmet a vidéki turizmus, a...

Исследуется комплекс проблем по формированию ассортимента продукции одному из направлений повышения конкурентоспособности машиностроительного предприятия.

In today's dynamic environment, the change is inevitable and is the only constant thing, whether it is a change in attitude or thinking. The fast-food joints are a depiction of contemporary expertise, the conception of 'ready-cooked food to go'. Today's society depicts a contemporary swing like...

In this paper I consider a monopolistic screening model with continuum of types when the type set is a disconnected subset of the real line. I prove that the product line remains connected provided that the gap in the type space is sufficiently small. I also use the results to show that the...

We examine the welfare effects of product-line restrictions, such as those called for by some proponents of network neutrality regulation. We find that restricting a monopoly supplier to a single product has the following effects: (a) consumers who would otherwise have consumed a low-quality...