How Do We Put Our Money Where Our Mouth Is?

Put your money where your mouth is.

Do politicians “ put their money where their mouth is ? ” Ideology and portfolio choice . ∗

To investigate how political tastes influence portfolio decisions, we exploit the mandatory disclosure of equity holdings made by U.S. Congress members and a continuous measure of ideology based on their voting records. By doing so, we address methodological issues facing the literature on political tastes and investment decisions. We find that politicians with similar beliefs hold similar equi...

El Niño and our future climate : where do we stand ?

El Niño and La Niña comprise the dominant mode of tropical climate variability: the El Niño and Southern Oscillation (ENSO) phenomenon. ENSO variations influence climate, ecosystems, and societies around the globe. It is, therefore, of great interest to understand the character of past and future ENSO variations. In this brief review, we explore our current understanding of these issues. The am...

University of Groningen Put Your Money Where Your Mouth

We present DIAL, a model of group dynamics and opinion dynamics. It features dialogues, in which agents gamble about reputation points. Intra-group radicalisation of opinions appears to be an emergent phenomenon. We position this model within the theoretical literature on opinion dynamics and social influence. Moreover, we investigate the effect of argumentation on group structure by simulation...

Where is Our Logic?

IT was not difficult to choose a subject for my talk tonight. My greatest medical interest throughout the years has been the care of the expectant mother. My difficulty lay in deciding how to present my subject. The many learned ones here know so much. Our visitors are not interested in medical details and statistics. The whole historical background of obstetrics has always fascinated me. Looki...