Flux Vacua Attractors and Generalized Compactifications

We investigate whether there are attractor equations for N=1 flux vacua in generalized compactifications. We fill a gap in the existing literature by verifying analytically that the recently proposed susy attractors, for type IIB CY(3) orientifold compactifications with flux, do give supersymmetric minima of the relevant scalar potential. Furthermore, our considerations clarify various confusions about existing proposals for generalization of the flux vacua attractors to non-K\"{a}hler compactifications. We explore different possibilities for generalization and find attractor equations for N=1 Minkowski vacua only both for the heterotic string on SU(3) structure manifolds and for type IIA/B on SU(3)xSU(3) structure spaces.Comment: 39 pages; small improvements and clarifications, references added, journal versio

Glueball Inflation and Gauge/Gravity Duality

We summarize our work on building glueball inflation models with the methods of the gauge/gravity duality. We review the relevant five-dimensional consistent truncation of type IIB supergravity. We consider solutions of this effective theory, whose metric has the form of a $dS_4$ foliation over a radial direction. By turning on small (in an appropriate sense) time-dependent deformations around these solutions, one can build models of glueball inflation. We discuss a particular deformed solution, describing an ultra-slow roll inflationary regime.Comment: 9 pages, contribution to the proceedings of the 11th international workshop "Lie Theory and its Applications in Physics", Varna, 201

A Gravity Dual of Ultra-slow Roll Inflation

We study time-dependent deformations of a certain class of backgrounds in type IIB supergravity. These backgrounds are solutions of a five-dimensional consistent truncation, relevant for gauge/gravity duality, which have the form of dS_4 foliations over a fifth (radial) direction. We investigate time-dependent deformations of those solutions in the search for gravitational duals of models of glueball inflation. A particular starting ansatz enables us to find a class of analytical solutions, corresponding to an ultra-slow roll inflationary regime. This regime may play a role in understanding the low l anomaly in the power spectrum of the CMB.Comment: 27 pages; explanations and references added, journal versio

Electroencephalographic Correlates of the Speed (TIME) of the Central Processing of Information by the Higher Parts of Brain in Humans with the Different Individual-typological Features of the Higher Nervous Activity

The speed (time) of the central processing of information (SCPI) by the higher parts of brain and electric activity of the cerebral cortex were studied using the method of electroencephalography (EEG) in humans with the different individual-typological features of the higher nervous activity – functional mobility of the nervous processes (FMNP). The statistically important differences of indices of the complicated sensorimotor reactions of differentiation, SCPI and EEG powers between the groups of examined were established. The persons with the high FMNP level were characterized with the reliably higher CPI speed and power of α-rhythm of the convexital surface of the cerebral cortex, especially right hemisphere and β-rhythm of EEG (р≤0,001) comparing with examined persons with the mean and low FMNP levels. The correlative analysis proved the reliability of the connections between FMNP, SCPI and EEG characteristics. We think that the established EEG-correlates of the central processing of information by the higher parts of brain increase the predictability of analysis of typological features of the higher nervous activity and can be useful in the field of professional orientation and selection and also in psychodiagnostics of neurological disorders

Monitoring and Privacy in Automobile Insurance Markets with Moral Hazard

This paper considers moral hazard in insurance markets when voluntary monitoring technologies are available and insureds may choose the precision of monitoring. Also privacy costs incurred thereby are taken into account. Two alternative contract schemes are compared in terms of welfare: (i) monitoring conditional on the loss with only the insurance indemnities based on the moni- toring data, and (ii) unrestricted monitoring with both the premiums and the indemnities depending on the data. With any contract scheme some monitor- ing will be optimal unless the privacy costs increase too fast in relation to the precision of the monitoring signal. In the benchmark situation (without pri- vacy costs) relying completely on both signals (monitoring and the outcome) informative of effort (ii) maximizes welfare. In the presence of privacy costs, the contract with conditional monitoring (i) might dominate the contract which fully includes the outcome and the monitoring signal into the sharing rule (ii). Apart from the direct effect of restricting privacy costs only to the state of loss, there are also an additional indirect incentive and a risk-sharing effect with this contract. Letting the individuals choose the precision of the monitoring technology at the time they reveal the data (ex post) is ine±cient with either contract scheme.moral hazard, conditional monitoring, value of information, privacy

Inflationary performance in a monetary union with large wage setters

Building on a micro-founded model of a two region-world economy in the tradition of the new open economy literature, this paper analyses the strategic interaction of large wage-setters and the central bank when switching from a regime of uncoordinated national monetary policies to a monetary union. The establishment of a monetary union is shown to favour wage restraint, provided the uni…ed central bank is not too conservative. Wage discipline may reduce equilibrium in‡ation in a monetary union relative to the one under uncoordinated national monetary policies when wage setting is centralised across member countries. --monetary union,wage bargaining,inflationary bias