“…The novel features of this study are as follows: First, while there have been empirical studies on each of trade, FDI, and portfolio integration and their impact on output comovement (e.g., Dées and Zorell 2012;Abiad et al 2013;Davis 2014;Fries and Kappler 2015;Cesa-Bianchi, Imbs, and Saleheen 2019;An, Kim, and Pyun 2021), we synthetically analyze the effects of three competing channels on business cycle synchronization, with a wide range of samples for 72 economies during 2010-2019, after the global financial crisis. Second, to the extent of our knowledge, there has been no study assessing the differential impacts of detailed trade, FDI, and financial linkages in a unified framework: intermediate input trade vs. final goods trade; greenfield FDI vs. crossborder M&A; and equity vs. long-and short-term debt.…”