We study how foreign interventions affect civil war around the world. In an infinitely repeated game we combine a gambling for resurrection mechanism for the influencing country with the canonical bargaining model of war in the influenced country to micro-found sudden shifts in power among the...

Several recent spatial modeling studies incorporate valence issues—e.g., voters’ evaluations of the candidates’ competence, integrity, and charisma—that may give one of the candidates an electoral advantage that is independent of his policy positions. However to date all such models...

Geographically weighted regression (GWR) is a popular technique to deal with spatially varying relationships between a response variable and predictors. Problems, however, have been pointed out (see Wheeler and Tiefelsdorf in J Geogr Syst 7(2):161–187, <CitationRef CitationID="CR27">2005</CitationRef>), which appear to be related to...</citationref>

Given a set of alternatives with multiple attributes, I characterize the set of preference profiles that are representable by weighted versions of a class of utility functions indexed by a parameter δ  0, where δ ≥ 1 corresponds to the set of Minkowski’s (<CitationRef CitationID="CR34">1886</CitationRef>) metric functions. In...</citationref>

In this study we address the following question: does friendship facilitate the adoption of a risk inherent new product? We did a validation study with a previously recorded friendship network and simulated scenario of a new energy drink. We learn that spill over effect for such a friendship...

I use data from the South African Social Giving Survey to investigate the role of social capital and motivations for giving to formal charities and beggars. Results suggest that both impure altruism and inequality aversion positively influence giving to formal charities but they have no...

This paper provides an econometric examination of geographic R&D spillovers among countries by focusing on the issue of cross-sectional dependence, and in particular on the dierent ways { weak and strong { it may aect the model. A preliminary analysis based on the estimation of the exponent of...