Publications des institutions partenaires

S'abonner aux flux infonet economy   2401 - 2420 of 5584

Innovations-­Netzwerke, Regionen und Globalisierung am Beispiel der Schweiz

Networks of companies, research laboratories and universities provide benefits for innovation activities. Some success factors are bound to particular characteristics of a region. This is the case for industries based on craftsmanship such as the watch industry or the machine building industry.The latter is one of the most innovative in Switzerland. However, for successful...

Full Text

Deutsch / 01/01/2012

Supply-side and demand-side cost sharing in deregulated social health insurance: Which is more effective?

Microeconomic theory predicts that if patients are fully insured and providers are paid fee-for-service, utilization of medical services exceeds the efficient level (‘moral hazard effect’).
In Switzerland, both demand-side cost sharing and upply-side cost sharing have been introduced to mitigate this problem. Analyzing a panel dataset of about 150,000 adults, we find both types...

Full Text

English / 01/01/2012

Uncovering a context-specific connectional fingerprint of human dorsal premotor cortex

Primate electrophysiological and lesion studies indicate a prominent role of the left dorsal premotor cortex (PMd) in action selection based on learned sensorimotor associations. Here we applied transcranial magnetic stimulation (TMS) to human left PMd at low or high intensity while right-handed individuals performed externally paced sequential key presses with their left hand....

Full Text

English / 01/01/2012

The importance of timing in segregated theta phase-coupling for cognitive performance

Functional cortical circuits for central executive functions have been shown to emerge by theta (~6 Hz) phase-coupling of distant cortical areas. It has been repeatedly shown that frontoparietal theta coupling at ~0° relative phase is associated with recognition, encoding, short-term retention, and planning; however, a causal link has not been demonstrated so far. Here we used...

Full Text

English / 01/01/2012

Reorganizing the intrinsic functional architecture of the human primary motor cortex during rest with non-invasive cortical stimulation

The primary motor cortex (M1) is the main effector structure implicated in the generation of voluntary movements and is directly involved in motor learning. The intrinsic horizontal neuronal connections of M1 exhibit short-term and long-term plasticity, which is a strong substrate for learning-related map reorganization. Transcranial direct current stimulation (tDCS) applied for few...

Full Text

English / 01/01/2012

Noninvasively decoding the contents of visual working memory in the human prefrontal cortex within high-gamma oscillatory patterns

The temporal maintenance and subsequent retrieval of information that no longer exists in the environment is called working memory. It is believed that this type of memory is controlled by the persistent activity of neuronal populations, including the prefrontal, temporal, and parietal cortex. For a long time, it has been controversially discussed whether, in working memory, the PFC...

Full Text

English / 01/01/2012

Modulating cortico-striatal and thalamo-cortical functional connectivity with transcranial direct current stimulation

Transcranial direct current stimulation (tDCS) is a noninvasive brain stimulation technique that has been shown to alter cortical excitability and activity via application of weak direct currents. Beyond intracortical effects, functional imaging as well as behavioral studies are suggesting additional tDCS-driven alterations of subcortical areas, however, direct evidence for such...

Full Text

English / 01/01/2012

Carbamazepine reduces short-interval interhemispheric inhibition in healthy humans

OBJECTIVE: We sought to elucidate the influence of centrally active drugs on interhemispheric inhibition (IHI) between primary motor cortices in healthy humans.
METHODS: We therefore studied IHI before and 2h after intake of a single oral dose of carbamazepine, dextrometorphane, lorazepam, or placebo and compared it with the well known results for short-interval intracortical...

Full Text

English / 01/01/2012

Modulation of functional connectivity with transcranial direct current stimulation

Transcranial direct current stimulation (tDCS) is a noninvasive brain stimulation tool suited to alter cortical excitability and activity via application of direct currents. The long-lasting synaptic modifications induced by this stimulation technique have been shown to result in behavioral functional improvements. This might be related to tDCS-induced modulations of associations...

Full Text

English / 01/01/2012

Brain signal variability relates to stability of behavior after recovery from diffuse brain injury

Variability or noise is an unmistakable feature of neural signals; however such fluctuations have been regarded as not carrying meaningful information or as detrimental for neural processes. Recent empirical and computational work has shown that neural systems with a greater capacity for information processing are able to explore a more varied dynamic repertoire, and the hallmark of...

Full Text

English / 01/01/2012

Der biologische Lebensstandard im Kanton Zürich 1919 bis 1951: eine historisch-anthropometrische Analyse dreier militärischer Kreiskommandos

Der biologische Lebensstandard bezeichnet die Erfassung des Wohlstandes von Bevölkerungsgruppen anhand von Körpergrössen. Insbesondere werden in der historischen Anthropometrie sozioökonomische Erklärungen für die Entwicklung der Körpergrössen gesucht. Die durchschnittliche Körperhöhe ist hierbei ein geeignetes Mass für das langfristige Wohlbefinden. Vor allem die Lebensumstände in...

Full Text

Deutsch / 01/01/2012

Steigern Schweizer Ärztenetzwerke die Effizienz im Gesundheitswesen? : eine Analyse auf mittlere Frist

Ärztenetzwerke werden von vielen Politikern als eine Art Wundermittel gegen das Ausgabenwachstum im Gesundheitswesen angesehen. Selten wird diese Erwartung jedoch auf empirische Resultate abgestützt. Das CSS Institut für Empirische Gesundheitsökonomie erforscht seit Jahren die Entwicklung der Gesundheitsausgaben in Ärztenetzwerken. Der Beitrag liefert eine Zusammenfassung der...

Full Text

Deutsch / 01/01/2012

Quo Vadis? - Konzept einer liberalen Reform der Schweizer Krankenversicherung

Der liberale Reformvorschlag sieht eine Aufteilung der Krankenpflegeversicherung in eine obligatorische Hochrisikoversicherung (ab CHF 10.000/Jahr) und eine freiwillige Grundpflegeversicherung (bis CHF 10.000/Jahr) vor, letztere mit risikoorientierten Prämien. Die Prämie für die obligatorische Deckung sinkt dadurch um 60%. Die Prämie für die Grundpflegeversicherung kann so festgelegt...

Full Text

Deutsch / 01/01/2012

Hazard Processes and Martingale Hazard Processes

In this paper, we build a bridge between different reduced-form approaches to pricing defaultable claims. In particular, we show how the well-known formulas by Duffie, Schroder, and Skiadas and by Elliott, Jeanblanc, and Yor are related. Moreover, in the spirit of Collin Dufresne, Hugonnier, and Goldstein, we propose a simple pricing formula under an equivalent change of measure....

Full Text

English / 01/01/2012

Two dimensions of corporate sustainability assessment: towards a comprehensive framework

Over the last years, many approaches have emerged that attempt to measure the contribution of firms to sustainable development, i.e. corporate sustainability. Our review of existing methodologies for the assessment of corporate sustainability reveals two major shortcomings. First, value creation as a core condition for sustainability as well as for further contributions to economic...

Full Text

English / 01/01/2012

An evolutionary explanation of the value premium puzzle

As early as 1934 Graham and Dodd conjectured that excess returns from value investment originate from a tendency of stock prices to converge towards a fundamental value. This paper confirms their insights within the evolutionary finance model of Evstigneev et al. (Econ Theory 27:449–468, (Evstigneev et al. 2006)). Our empirical results show the predictive power of the evolutionary...

Full Text

English / 29/12/2011

Pages

Le portail de l'information économique suisse

© 2016 Infonet Economy