Publications des institutions partenaires

S'abonner aux flux infonet economy   161 - 180 of 2427

An industrial design solution for integrating NMR magnetic field sensors into an MRI scanner

Purpose: Neuroimaging research relies on the skills of increasingly multidisciplinary individuals and often requires the installation and use of additional home-built or third-party equipment. The purpose of the present work was the safe, ergonomic, durable, and aesthetically pleasing installation of magnetic field monitoring equipment into a scanner, while keeping the setup…

Full Text

English / 01/01/2017

Tx/Rx head coil induces less RF transmit-related heating than body coil in conductive metallic objects outside the active area of the head coil

The transmit–receive (Tx/Rx) birdcage head coil is often used for excitation instead of the body coil because of the presumably lower risk of heating in and around conductive implants. However, this common practice has not been systematically tested. To investigate whether the Tx/Rx birdcage head coil produces less heating than the body coil when scanning individuals with implants,…

Full Text

English / 01/01/2017

Comparison of the working memory load in N-Back and working memory span tasks by means of EEG frequency band power and P300 amplitude

According to theoretical accounts, both, N-back and complex span tasks mainly require working memory (WM) processing. In contrast, simple span tasks conceptually mainly require WM storage. Thus, conceptually, an N-back task and a complex span task share more commonalities as compared to a simple span task. In the current study, we compared an N-back task, a complex operation span…

Full Text

English / 01/01/2017

Impact evaluation methods in public economics : a brief introduction to randomized evaluations and comparison with other methods

Recent years have seen a large expansion in the use of rigorous impact evaluation techniques. Increasingly, public administrations are collaborating with academic economists and other quantitative social scientists to apply such rigorous methods to the study of public finance. These developments allow for more reliable measurements of the effects of different policy options on the…

Full Text

English / 01/01/2017

‘High’ achievers? Cannabis access and academic performance

This paper investigates how legal cannabis access affects student performance. Identification comes from an exceptional policy introduced in the city of Maastricht in the Netherlands that discriminated access via licensed cannabis shops based on an individual’s nationality. We apply a difference-in-difference approach using administrative panel data on course grades of local students…

Full Text

English / 01/01/2017

Vouchers for future kidney transplants to overcome “chronological incompatibility” between living donors and recipients

Background: The waiting list for kidney transplantation is long. The creation of “vouchers” for future kidney transplants enables living donation to occur when optimal for the donor and transplantation to occur later, when and if needed by the recipient.
Methods: The donation of a kidney at a time that is optimal for the donor generates a “voucher” that only a specified…

Full Text

English / 01/01/2017

Neural control of social decisions

Social decisions are among the most important choices in our life. They are often proposed to rely on functionally specialized neural circuitry, based on correlated neural activity observed with neuroimaging. However, neuroimaging studies usually do not allow conclusions about whether the identified neural activity causally controls behavior, rather than being a consequence of it.…

Full Text

English / 01/01/2017

Overconfidence and investment: an experimental approach

A positive relation between overconfidence and investment provision has been theoretically justified and practically assumed in the literature, but has not been thoroughly investigated. We test and confirm this positive relation between direct measures of overconfidence in one's financial knowledge and choice of investment. More precisely, strong overconfidence results in excess…

Full Text

English / 01/01/2017

Rage against the machines: labor-Saving technology and unrest in England, 1830-32

Can the adoption of labor-saving technology lead to social instability and unrest? We examine a canonical historical case, the so-called ‘Captain Swing’ riots in 1830s Britain. Variously attributed to the adverse consequences of weather shocks, the shortcomings of the Poor Law, or the after-effects of enclosure, we emphasize the importance of a new technology – the threshing machine…

Full Text

English / 01/01/2017

Aggregate sentiment and investment: an experimental study

Sentiment indices, such as measures of consumer confidence, are often discussed as potential indicators of future investment, consumption and growth. However, documenting a causal relationship between consumer confidence and output — and understanding the precise nature of the relationship — using field data has been challenging. We rely on the high degree of control afforded by a…

Full Text

English / 01/01/2017

Reward, value, and salience

Value and salience are key variables for associative learning, decision-making, and attention. In this chapter we review definitions of value and salience, and describe human neuroimaging studies that dissociate these variables. Value increases with the magnitude and probability of reward but decreases with the magnitude and probability of punishment, whereas salience increases with…

Full Text

English / 01/01/2017

Protektionismus ist keine Lösung

Die Globalisierung hat in den USA Arbeitsplätze gekostet. Diese Stellen lassen sich mit Einschränkungen des internationalen Handels jedoch nicht gezielt zurückholen.

Full Text

Deutsch / 19/12/2016

Dynamical representation of dominance relationships in the human rostromedial prefrontal cortex

Humans and other primates have evolved the ability to represent their status in the group's social hierarchy, which is essential for avoiding harm and accessing resources. Yet it remains unclear how the human brain learns dominance status and adjusts behavior accordingly during dynamic social interactions. Here we address this issue with a combination of fMRI and transcranial…

Full Text

English / 05/12/2016

Unique equilibrium in contests with incomplete information

Considered are imperfectly discriminating contests in which players may possess private information about the primitives of the confiict, such as the contest technology, valuations of the prize, cost functions, and budget constraints. We find general conditions under which a given contest of this sort admits a unique pure-strategy Nash equilibrium. In particular, provided that all…

Full Text

English / 01/12/2016

Seiten

Le portail de l'information économique suisse

© 2016 Infonet Economy