We study correlated equilibria and coarse equilibria of simple first-price single-item auctions in the simplest auction model of full information. Nash equilibria are known to always yield full efficiency and a revenue that is at least the second-highest value. We prove that the same is true for all correlated equilibria, even those in which agents overbid – i.e., bid above their values. Coarse...

Set-asides and subsidies are used extensively in government procurement and resource sales. We analyze these policies in an empirical model of US Forest Service timber auctions. The model fits the data well both within the sample of unrestricted sales used for estimation, and when we predict (out-of-sample) outcomes for small business set-asides. Our estimates suggest that restricting entry sub...

We examine the diffusion of different types of information through email networks and the effects of these diffusion patterns on the performance of information workers. In particular, we ask: What predicts the likelihood of individuals becoming aware of a new piece of information, and how quickly they obtain it? Do different types of information exhibit different diffusion patterns, and do diff...

Throughout much of its existence, Nevada’s gambling industry has been dominated by table games. Historically, slot machines were of secondary importance because they did not generate much revenue and were costly to maintain and operate. Starting in the late 1970s, a series of technological milestones improved the form and function of slot machines, and fueled replacement cycles on casino floors...

during the past few years, modeling in agriculture has attracted considerable attention. new modeling methods including neural networks are employed in various industries, and it is necessary that their use in agriculture be also considered. this research addressed the trend of energy use in broiler farms in alborz province and sought to model the trend of energy consumption and production in t...

This paper presents an efficient optimization procedure to find the optimal shapes of double curvature  arch  dams  considering  fluid–structure  interaction  subject  to  earthquake  loading. The optimization is carried out using a combination of the magnetic charged system search, big bang-big crunch algorithm and artificial neural network methods. Performing the finite element  analysis  dur...

A monopolist sells a good whose value depends on the set (network) of buyers who adopt it as well as on their private types. This paper studies the seller’s revenue maximization in this problem when he coordinates the buyers’ adoption decisions based on their reported types. We characterize ex post implementable sales schemes, and identify the conditions under which the revenue maximizing schem...

Performance of revenue indicates relative change in yield from tax as well as non-tax revenue of national or subnational governments. It takes into account the changes in rates, base, and coverage related to the structure of revenue sources. It also incorporates the issues related to efficiency in governance of tax and non-tax sources. Various concepts and techniques are used for the measuremen...