Excess Demand and Rationing: Selling to an Input

This paper develops a model that explains the persistence of excess demand for some goods. It offers that, for some goods, consumers care about who else is consuming the good. As such, their willingness to pay depends on their beliefs about the other consumers. We demonstrate that screening mechanisms that impose costs in negative correlation to an individual's (positive) externality can increase profits while appearing to generate excess demand. We feel that such a model is appropriate in that casual observation seems to indicate that it does well in predicting which goods would use such a screening mechanism and which would not.excess demand, distributional waits, scalping, pricing

Random spherical hyperbolic diffusion

The paper starts by giving a motivation for this research and justifying the considered stochastic diffusion models for cosmic microwave background radiation studies. Then it derives the exact solution in terms of a series expansion to a hyperbolic diffusion equation on the unit sphere. The Cauchy problem with random initial conditions is studied. All assumptions are stated in terms of the angular power spectrum of the initial conditions. An approximation to the solution is given and analysed by finitely truncating the series expansion. The upper bounds for the convergence rates of the approximation errors are derived. Smoothness properties of the solution and its approximation are investigated. It is demonstrated that the sample H\"older continuity of these spherical fields is related to the decay of the angular power spectrum. Numerical studies of approximations to the solution and applications to cosmic microwave background data are presented to illustrate the theoretical results.Comment: 30 pages, 15 figures. Updated file. Some misprints are correcte

The Validation of Speech Corpora

1.2 Intended audience........................

Fast Single Shot Detection and Pose Estimation

For applications in navigation and robotics, estimating the 3D pose of objects is as important as detection. Many approaches to pose estimation rely on detecting or tracking parts or keypoints [11, 21]. In this paper we build on a recent state-of-the-art convolutional network for slidingwindow detection [10] to provide detection and rough pose estimation in a single shot, without intermediate stages of detecting parts or initial bounding boxes. While not the first system to treat pose estimation as a categorization problem, this is the first attempt to combine detection and pose estimation at the same level using a deep learning approach. The key to the architecture is a deep convolutional network where scores for the presence of an object category, the offset for its location, and the approximate pose are all estimated on a regular grid of locations in the image. The resulting system is as accurate as recent work on pose estimation (42.4% 8 View mAVP on Pascal 3D+ [21] ) and significantly faster (46 frames per second (FPS) on a TITAN X GPU). This approach to detection and rough pose estimation is fast and accurate enough to be widely applied as a pre-processing step for tasks including high-accuracy pose estimation, object tracking and localization, and vSLAM

Our city of love and of slaughter: Berlin klezmer and the politics of place

Although it claims little historical connection to klezmer music or Yiddish culture, the city of Berlin has hosted one of the most dynamic klezmer scenes of the past 20 years. This article analyses ways that place has been made to function as a meaningful unit in the music and lyrics of several artists living and working in Berlin, localising the transnational klezmer revival discourse by rooting the city in their music. Building on Adam Krims’ theory of ‘urban ethos’, I explore how the contemporary city is emplaced in its klezmer music, arguing that these processes of signification allow us to hear contrasting articulations of Berlin. The native Berliners ?Shmaltz! frame their city as an escapist gateway, the American songwriter Daniel Kahn sees a site of painfully unresolved history and the internationalist Knoblauch Klezmer band locate Berlin as an embodiment of playfully multilingual performativity

Sounding the Holocaust, silencing the city: memorial soundscapes in today's Berlin

Silence appears frequently in discourses of the Holocaust – as a metaphorical absence, a warning against forgetting, or simply the only appropriate response. But powerful though these meanings are, they often underplay the ambiguity of silence’s signifying power. This article addresses the liminality of silence through an analysis of its richly textured role in the memorial soundscapes of Berlin. Beyond an aural version of erasure, unspeakability, or the space for reflection upon it, I argue that these silent spaces must always be heard as part of their surrounding urban environment, refracting wider spatial practices and dis/order. When conventions are reversed – when the present is silent – the past can resound in surprising and provocative ways, collapsing spatial and temporal borders and escaping the ritualized boundaries of formal commemoration. This is explored through four different memorial situations: the disturbing resonances within the Holocaust Memorial; the transgressive processes of a collective silent walk; Gleis 17 railway memorial’s opening up of heterotopic ‘gaps’ in time; and sounded/silent history in the work of singer Tania Alon. Each of these examples, in different ways, frames a slippage between urban sound and memorial silence, creating a parallel symbolic space that the past and the present can inhabit simultaneously. In its unpredictable fluidity, silence becomes a mobile and subversive force, producing an imaginative space that is ambiguous, affective and deeply meaningful. A closer attention to these different practices of listening disrupts a top-down, strategic discourse of silence as conventionally emblematic of reflection and distance. The contemporary urban soundscape that slips through the silent cracks problematizes the narrative hegemony of memorial itself