Yet it has to be acknowledged that the principle of building macroeconomics on microeconomic foundations, as applied by economists, contributed next to nothing to predicting, explaining or resolving the Great Recession. The insights into the financial meltdown that policymakers found most valuable came from scholars, such as Hyman Minsky and Charles Kindleberger, who thought in terms of broad aggregates and made no effort to establish micro foundations. The market participants, such as Ray Dalio, who were most prescient with respect to the crisis ignored microeconomics as they theorized in terms of debt and credit aggregates.
Larry Summers