Revealed preferences for macroeconomic stabilization

In the new Keynesian model of endogenous stabilization governments have objectives with respect to macroeconomic performance, but are constrained by an augmented Phillips curve. Because they react more quickly to inflation shocks than private agents, governments can lean against the macroeconomic wind. We develop an econometric test of this characterization of the political-economic equilibrium. Applying this methodology to a variety of quadratic social welfare functions provides inferences about the functional form of stabilization preferences and about the formation of expectations.endogenous stabilization, policy objectives, adaptive expectations

Why do cosmological perturbations look classical to us?

According to the inflationary scenario of cosmology, all structure in the Universe can be traced back to primordial fluctuations during an accelerated (inflationary) phase of the very early Universe. A conceptual problem arises due to the fact that the primordial fluctuations are quantum, while the standard scenario of structure formation deals with classical fluctuations. In this essay we present a concise summary of the physics describing the quantum-to-classical transition. We first discuss the observational indistinguishability between classical and quantum correlation functions in the closed system approach (pragmatic view). We then present the open system approach with environment-induced decoherence. We finally discuss the question of the fluctuations' entropy for which, in principle, the concrete mechanism leading to decoherence possesses observational relevance.Comment: 12 pages, Revtex, invited contribution to a special issue of Advanced Science Letters, final versio

Innovative Antitrust and the Patent System

I. Introduction II. The Evolution of the Antitrust-Patent Paradox III. The Antitrust Agencies, Enforcement, and Innovation Policy ... A. Merger Review and Enforcement ... B. Nonmerger Antitrust Claims ... C. Private Actors Enforcing Innovation IV. Case Studies ... A. Boston Scientific’s Merger and Consent Order ... B. Qualcomm’s Attempt to Dominate the Market for Cellphones and Cellphone Innovation ... C. The Dilemma of Creating Antitrust Liability in the Pharmaceutical Industry V. An Empirical Analysis of Antitrust’s Influence on Innovation ... A. Hypotheses ... B. Research Design ... 1. Variables ... 2. Statistical Model ... C. Deductions, Conclusions, and Implications ... D. Conclusion VI. Policy, Legal, and Theoretical Implications and Proposal

Quantum-gravitational effects on gauge-invariant scalar and tensor perturbations during inflation: The de Sitter case

We present detailed calculations for quantum-gravitational corrections to the power spectra of gauge-invariant scalar and tensor perturbations during inflation. This is done by performing a semiclassical Born-Oppenheimer type of approximation to the Wheeler-DeWitt equation, from which we obtain a Schroedinger equation with quantum-gravitational correction terms. As a first step, we perform our calculation for a de Sitter universe and find that the correction terms lead to an enhancement of power on the largest scales.Comment: 21 pages, 5 figures, clarifications and references added, version accepted for publication in Physical Review

Thermal Evolution and Core Formation on Asteroid 4 Vesta in the Magma Ocean Regime

Geochemical observations of the eucrite and diogenite meteorites, together with observations made by NASAs Dawn spacecraft while orbiting asteroid 4 Vesta, indicate that Vesta has differentiated to form a crust, mantle, and core. Eucrite and diogenite petrology is best explained by solidification of the crust from a magma ocean constituting 60-70% of Vestas silicates [3], or a temperature of ~1550 C. The abundances of moderately siderophile elements (Ni, Co, Mo, W, and P) in eucrites require that essentially all of the metallic phase in Vesta segregated to form a core prior to eucrite formation and likely reached a temperature of 1450- 1575 C. These observations provide important constraints on Vestas thermal evolution. The high inferred temperature indicates that convective heat transport must have been important during part of Vestas thermal evolution. In this study, we model Vestas thermal evolution in the magma ocean regime

Characterization of gasoline/ethanol blends by infrared and excess infrared spectroscopy

This work was supported by the Northern Research Partnership (NRP) in Scotland and the Scottish Sensor Systems Centre (SSSC) funded by the Scottish Funding Council (SFC).Peer reviewedPostprin

Paars – Bois de la Bruyère

Le diagnostic a été réalisé sur un terrain concerné par l’ouverture d’une carrière par la Société Forloc. Elle aura pour vocation l’exploitation des sédiments d’une butte héritée du Tertiaire. La première tranche vise à exploiter 3,5 ha. Les sondages qui ont couvert plus de 10 % de l’emprise, ont seulement mis au jour quelques vestiges fugaces de la première guerre mondiale et ses restes de pilonnage (cratère d’obus, obus non explosé)

Roye – Lotissement du Champ d’Enfer

La mairie de Roye aménage un lotissement sur un terrain d’une surface de 80 770 m2. L’emprise du diagnostic, sur la parcelle ZC 55, se situe au nord-ouest de Roye, commune de la Somme, sur la zone d’extraction d’une briqueterie. Toutefois l’implantation sur un versant orienté à l’est, dominant un paléovallon, affluent de l’Avre a permis d’envisager la préservation d’éléments préhistoriques. Les dépôts éoliens lors de la dernière période glaciaire, le Weichsélien, et leur accumulation, par voi..

Ochancourt – Rue de l’Église

L’Agence du Littoral aménage un lotissement sur un terrain d’une surface de 14 805 m2, situé rue de l’Église, à Ochancourt, commune du Vimeu, située à une dizaine de kilomètres à l’ouest d’Abbeville. Une église attestée dès le xiiie s. est attenante aux parcelles, motif de la prescription de diagnostic du Service régional de l’archéologie. Les sondages en puits et les tranchées ont révélé une stratigraphie dont l’élément principal est le loess. La terre végétale, ainsi que le limon argileux s..