We champion the view that a richer understanding of electronic markets is obtained when their implications for consumers are jointly studied from social, economic, and psychological perspectives. We adopt this perspective triad to build a Social– Economic–Psychological (SEP) Model of technology adoption and usage, and apply the model to understand and explain the behavior of online investors. T...

By the time on first exploration of reservoirs and design refineries, there are many challenges appeared health, safety, environment (HSE) by conduction fossil fuels such as higher contents sulfur, nitrogen, oxygen, halogen, metals, aromatics. There side effects human health starting from simple to malignant diseases cancer. Also, safety equipement catalysts affected presence high content these...

Sentinel satellite images are enhanced using Erdas-2014 and analyzed by GIS techniques to distinguish the main geological features in study area. The enhancement process correct image with Topography, Geomorphology, Lithology characterize for landscape classify. method environmental, geological, hydrological, topographic analysis .to identified assess suitable location of Geopark eastern masian...

We describe MARI (Multi-Attribute Resource Intermediary), a project being conducted in the Software Agents group at the MIT Media Lab, and the challenges and issues we are facing in its design and implementation. MARI is an intermediary architecture intended as a generalized platform for the specification and brokering of heterogeneous goods and services. The project reflects our vision of how ...

Michael Conrad earned his PhD at 2 November, 2009 with his work about mechanisms and protocols for secure legal relations in distributed and spontaneous electronic markets (Fig. 1). At the Institute of Telematics he mainly worked on the projects SESAM and KAI. Meanwhile he meets new challenges at its new employer IDS GmbH working on the development of smart grids. We wish Dr. Conrad all the best!

Abstract—In this contribution we transfer a customer purchase incidence model for consumer products which is based on Ehrenberg’s repeat-buying theory to Web-based information products. Ehrenberg’s repeat-buying theory successfully describes regularities on a large number of consumer product markets. We show that these regularities exist in electronic markets for information goods too, and that...

Electronic markets have a short but dynamic history. How an electronic market can be successfully developed remains in dispute. There is a clear need to better understand the nature of electronic markets themselves and, in particular, to review important developments in their conceptualisation. To enable a deeper understanding of these issues, we decided to restrict our investigation to electro...

W examine the impact of reduced search costs on prices of commodity products in electronic marketplaces. Conventionally, reduced consumer search costs may be expected to engender stronger price competition between firms, resulting in lower prices and improved consumer welfare. This notion was formalized in Stahl (1989, “Oligopolistic pricing with sequential consumer search,” American Economic R...