This paper characterises optimal unemployment insurance (UI) and optimal tax policy in an equilibrium matching framework where job search effort is unobserved by the Planner. Policy design takes into account congestion externalities (greater job search effort by an individual worker reduces the re-employment rate of other competing job seekers) and thick market externalities (greater job creati...

Traffic assignment models based on user equilibrium approaches are one of the most widely used tools in transportation planning analysis. The modeling hypotheses, soundly based on the well established concept of equilibrium, lead to nice mathematical models for which there are efficient algorithms that provide solutions in terms of the expected flows on network links, Florian and Hearn, 1995. M...

Transport systems are inherently uncertain, posing a challenge to network modellers and planners. Newer models (probabilistic user equilibrium, strategic user equilibrium) attempt to capture this uncertainty by explicitly acknowledging day-to-day randomness in the network, and solve for strategic equilibrium conditions based on the concept of travellers optimizing their expected performance. St...

This paper investigates the existence and uniqueness of equilibrium in the Vickrey bottleneck model when each user controls a positive fraction of total traffic. Users simultaneously choose departure schedules for their vehicle fleets. Each user internalizes the congestion cost that each of its vehicles imposes on other vehicles in its fleet. We establish three results. First, a pure strategy N...

The user equilibrium in traffic assignment problem is based on the fact that travelers choose the minimum-cost path between every origin-destination pair and on the assumption that such a behavior will lead to an equilibrium of the traffic network. In this paper, we consider this problem when the traffic network links are fuzzy cost. Therefore, a Physarum-type algorithm is developed to unify th...

A program package has been developed that calculates chemical equilibrium and thermodynamic properties of reactants and products of a combustion reaction between fuel and air. The package consists of the following four parts: 1) A program for calculating chemical equilibrium. 2) A database that contains thermochemical information about the molecules, which comes from the GRI-Mech tables. 3) A G...

This paper reviews the range of traffic models, with particular attention to microsimulation. Although there are major types, there are so many hybrids that it is difficult to classify them all. The standard way of assigning traffic to a network is to find a static equilibrium from which no driver would be able to find a quicker route. This gives fairly good predictions of the link flows result...

This research considers congestion pricing under demand uncertainty. In particular, a robust optimization (RO) approach is applied to optimal congestion pricing problems under user equilibrium. A mathematical model is developed and an analysis performed to consider robust, dynamic user equilibrium, optimal tolls based on the second-best problem known as the dynamic optimal toll problem with equ...

We present the Progressive Second Price auction, a new decentralized mechanism for allocation of variable-size shares of a resource among multiple users. Unlike most mechanisms in the economics litterature, PSP is designed with a very small message space, making it suitable for real-time market pricing of communication bandwidth. Under elastic demand, the PSP auction is incentive compatible and...

A Nash equilibrium of a routing network represents a stable state of the network where no user finds it beneficial to unilaterally deviate from its routing strategy. In this work, we investigate the structure of such equilibria within the context of a certain game that models selfish routing for a set of n users each shipping its traffic over a network consisting of m parallel links. In particu...