inventors shape their collaboration decisions. Using a new panel of UK inventors and a novel identification strategy, this paper … systematically explores the net effects of all these ‘proximities’ on co-patenting. The regression analysis allows us to identify the … show that physical proximity is an important influence on collaboration, but is mediated by organisational and ethnic …

derive empirical predictions for the direction of correlation and for whether governance is stronger or weaker with multiple …

A number of studies have provided evidence of increased correlation in global financial market returns during bear … implied correlation based on portfolio downside risk measures that does not suffer from this bias. These unbiased quantile … correlation estimates are directly applicable to portfolio optimization and to risk management techniques in general. This simple …

Testing the hypothesis that international equity market correlation increases in volatile times is a difficult exercise … and misleading results have often been reported in the past because of a spurious relationship between correlation and … volatility. This paper focuses on extreme correlation, that is to say the correlation between returns in either the negative or …