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 different ways – weak and strong – it may affect the model. A preliminary analysis based on the estimation of the...

This paper aims at opening the black box of peer effects in adolescent weight gain. Using Add Health data on secondary schools in the U.S., we investigate whether these effects partly flow through the eating habits channel. Adolescents are assumed to interact through a friendship social network....

We develop a unidimensional spatial model of two party competition in which parties are better informed than voters about the bliss point of voters. The announced positions of the two parties serve as signals to the voters concerning the parties' private information. Surprisingly, in all...

In this paper we address the following questions: (i) To what extent is the hypothesis that voters vote sincerely testable or falsifiable? And (ii) in environments where the hypothesis is falsifiable, to what extent is the observed behavior of voters consistent with sincere voting? We show that...

In this paper we address the following question: To what extent is the hypothesis that voters vote “ideologically” (i.e., they always vote for the candidate who is ideologically “closest” to them) testable or falsifiable? We show that using data only on how individuals vote in a single...

This paper employs individual firm data in order to check the existence of industry-spatial effects alongside other microeconomic determinants of R&D investment. Spatial proximity is defined by a measure of firms’ industry distance based on trade intensity between sectors. The spatial model...

The goal of this paper is to study the role of multi-product firms in the market provision of product variety. The analysis is conducted using the spokes model of non-localized competition proposed by Chen and Riordan (2007). Firstly, we show that multi-product firms are at a competitive...

We test sensitivity of model specification on the choice of contractual physician arrangements by hospitals through use of spatially defined covariates, rural/urban subset models, and geographically weighted regression (GWR) models. Results show that hospitals are significantly influenced by...