Over the past thirty years, the typical large bank has become a global entity with subsidiaries in many countries. In parallel, financial liberalization has increased the interconnectedness of banking systems, with domestic banking systems becoming more exposed to shocks transmitted through foreign banks. This globalization of banking propagated liquidity risk during the global financial crisis and subsequent euro area crisis. Unfortunately, little is known about how cross-border operations of global banks transmit liquidity shocks between countries. The seminal work by Peek and Rosengren (1997, 2000) provides early examples of how bank-level data can help identify the specific transmission channels. There are, however, two limitations to conducting this line of research. First, there is a lack of public data on the balance sheets of global banks. Second, it is difficult to compare the results of different research projects that use sensitive supervisory data collected by banking supervisors and central banks. Together with other scholars, we established the International Banking Research Network (IBRN) to overcome these limitations.