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abnormal operating performance despite having no aggressive R&D growth. Exogenous industry shocks to demand or productivity do …
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We examine the effect of investor attention spillover on stock return predictability. Using a novel measure, the News Network Triggered Attention index (NNTA), we find that NNTA negatively predicts market returns with a monthly in(out)-of-sample R-square of 5.97% (5.80%). In the cross-section, a...
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The persistent downturn in productivity growth during the past two decades has cast doubts on global economic prospects …. Frequently cited causes include a dearth of productivity-enhancing ideas, an aging population, and a shift to service …-based economies. While we acknowledge the role each of these has played, our research shows that productivity is fundamentally driven …
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We develop Hawkes models in which events are triggered through self as well as cross-excitation. We examine whether incorporating cross-excitation improves the forecasts of extremes in asset returns compared to only self-excitation. The models are applied to US stocks, bonds and dollar exchange...
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The study of connectedness is key to assess spillover effects and identify lead-lag relationships among market exchanges trading the same asset. By means of an extension of Diebold and Yilmaz (2012) econometric connectedness measures, we examined the relationships of five major Bitcoin exchange...
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