R&D collaboration facilitates pooling of complementary skills, learning from the partner as well as sharing risks and costs. Research therefore repeatedly stressed the positive relationship between collaborative R&D and innovation performance. Fewer studies addressed potential drawbacks of...

This paper investigates the existence of a possible media bias by analyzing the impact of auto- mobile manufacturer’s advertisements on automobile reviews in a leading German car maga- zine. By accounting for both endogeneity and sample selection using a two-step procedure, we find a positive...

In this paper, we consider the problem of missing values of a continuous response variable that cannot be assumed to be missing at random. The example considered here is an analysis of pupil's subjective engagement at school using longitudinal survey data, where the engagement score from wave 3...

The electronic purse is one of the latest smart card applications. However, the French Monéo electronic purse meets considerable difficulties to its widespread diffusion meanwhile several foreign electronic purses are successful. A test survey in the South of France allows us to analyse the...

R&D collaboration facilitates pooling of complementary skills, learning from the partner as well as sharing risks and costs. Research therefore repeatedly stressed the positive relationship between collaborative R&D and innovation performance. Collaboration, however, involves transaction costs...

This paper investigates the existence of a possible media bias by analyzing the impact of automobile manufacturer's advertisements on automobile reviews in a leading German car magazine. By accounting for both endogeneity and sample selection using a two-step procedure, we find a positive impact...

This paper proposes a test for missing at random (MAR). The MAR assumption is shown to be testable given instrumental variables which are independent of response given potential outcomes. A nonparametric testing procedure based on integrated squared distance is proposed. The statistic’s...

This paper contributes to the existing literature on media content and asset prices by analyzing the relationship between the adoption of media guidance and a personÕs propensity to buy stocks. We provide empirical evidence on this relationship while controlling for a broad range of individual...

This paper explores the importance of the risk of violence on the decision making of rural households, using a unique panel data set for Colombian coffee-growers. We identify two channels. First, we examine the direct impact of conflict on agricultural production through the change in the...