Recent studies proposed news about future technology growth as the main driver of macroeconomic fluctuations. The identification of these news through stock prices in SVARs has been criticized in the past. Therefore, I propose a series of experiments to test that hypothesis by examining its...

We define decoupling as an increase in the cross-country heterogeneity in long-term growth expectations. We identify growth expectations from a cointegrating relation between a country's output level and its stock market valuation. Fluctuations in this output-price or yp-ratio reflect changes in...

This paper shows the importance of technological synergies among heterogeneous firms for aggregate fluctuations. First, we document six novel empirical facts using microdata that suggest the existence of important technological synergies between trading firms, the presence of positive...

This working paper evaluates the economic sources of the stock market responses of 40 countries to surprises in the fed funds rate (FFR), the Fed's forward guidance (FG) and large-scale asset purchases (LSAP). We decompose stock market returns into different components reflecting investors'...

During the past two decades, financial markets across the globe have experienced sporadic waves of crashes. Such waves raise concerns about the vulnerability of global financial markets and the transmission mechanisms of shocks beyond borders. The current study examines the co-movement of stock...