"If we are to grasp the dynamics of this unforecasted storm, we have to move beyond the familiar cognitive frame of macroeconomics that we inherited from the early twentieth century. Forged in the wake of World War I and World War II, the macroeconomic perspective on international economics is organized around nation-states, national productive systems and the trade imbalances they generate. It is a view of the economy that will forever be identified with John Maynard Keynes. Predictably, the onset of the crisis in 2008 evoked memories of the 1930s and triggered calls for a return to “the master.” And Keynesian economics is, indeed, indispensable for grasping the dynamics of collapsing consumption and investment, the surge in unemployment and the options for monetary and fiscal policy after 2009. But when it comes to analyzing the onset of financial crises in an age of deep globalization, the standard macroeconomic approach has its limits. In discussions of international trade it is now commonly accepted that it is no longer national economies that matter. What drives global trade are not the relationships between national economies but multinational corporations coordinating far-flung “value chains.” The same is true for the global business of money. To understand the tensions within the global financial system that exploded in 2008 we have to move beyond Keynesian macroeconomics and its familiar apparatus of national economic statistics. As Hyun Song Shin, chief economist at the Bank for International Settlements and one of the foremost thinkers of the new breed of “macrofinance,” has put it, we need to analyze the global economy not in terms of an “island model” of international economic interaction—national economy to national economy—but through the “interlocking matrix” of corporate balance sheets—bank to bank. As both the global financial crisis of 2007–2009 and the crisis in the eurozone after 2010 would demonstrate, government deficits and current account imbalances are poor predictors of the force and speed with which modern financial crises can strike. This can be grasped only if we focus on the shocking adjustments that can take place within this interlocking matrix of financial accounts. For all the pressure that classic “macroeconomic imbalances”—in budgets and trade—can exert, a modern global bank run moves far more money far more abruptly."