We study computational and coordination efficiency issues of Nash equilibria in symmetric network congestion games. We first propose a simple and natural greedy method that computes a pure Nash equilibrium with respect to traffic congestion in a network. In this algorithm each user plays only once and allocates her traffic to a path selected via a shortest path computation. We then show that th...

Wireless Sensor Networks (WSNs) are a specific category of wireless ad-hoc networks where their performance is highly affected by application, life time, storage capacity, processing power, topology changes, the communication medium and bandwidth. These limitations necessitate an effective data transport control in WSNs considering quality of service, energy efficiency, and congestion control. ...

We formulate an empirical model of congestion for a network where queues may form and spill back from one link to another. Its purpose is to disentangle the dynamic effect that a marginal vehicle, on a given link and at a given time, has on the distribution of travel times experienced there and on connected links. We estimate a dynamic model, based on an unusually complete and accurate dataset ...

Open access to the transmission network represents one of the important tasks for transmission and system operators. Moreover, increases of transactions in markets may lead to transmission network congestion. The approaches proposed for transmission congestion management are: generated power re-dispatching, generators outside the congested area dispatching, or consumed power mitigation for spec...

Congestion pricing schemes have been traditionally derived based on analytical representations of travel demand and traffic flows, such as in bottleneck models. A major limitation of these models, especially when applied to urban networks, is the inconsistency with traffic dynamics and related phenomena such as hysteresis and the capacity drop. In this study we propose a new method to derive ti...

With the emergence of new technologies such as hydraulic fracturing and horizontal drilling, large new deposits of oil and gas are poised to become economically viable. As this happens, substantially increased deliveries will make their way into the market, benefiting both producers and consumers. However, these potential benefits cannot be fully realized with the existing transmission capacity...

Query processing over the Internet involving autonomous data sources is a major task in data integration. It requires the estimated costs of possible query plans in order to select the best one with the minimum cost. In this context, the cost of a query is affected by three factors: network congestion, server contention state, and complexity of the query. In this paper, we study the effects of ...

Successful firms’ demand often exceeds capacity, generating congestion. Given innovative, high-quality products’ ramp-up costs from technological constraints or limited labor supply, a question arises: Why do successful firms not raise prices to increase revenues given excess demand? For new products and experience goods, communicating quality to consumers is challenging, and congestion may ser...

A nascent ridesharing industry is being enabled by new communication technologies and motivated by the many possible benefits, such as reduction in travel cost, pollution, and congestion. Understanding the complex relations between ridesharing and traffic congestion is a critical step in the evaluation of a ridesharing enterprise or of the convenience of regulatory policies or incentives to pro...

Traditional economic theory provides a conundrum for pricing large, lumpy infrastructure investments: very different shortand long-run pricing prescriptions. Unless the facility is congested, efficient short run prices should only cover operating costs (short-run marginal cost, SMC); any higher price designed to also recover capital costs would risk inefficient under-utilization. However, if th...