Paper I
Paper I — Advanced Macroeconomics · classical · Keynesian · monetarist
Story hook
On 15 September 2008, Lehman Brothers filed for Chapter 11 bankruptcy with $619 billion of liabilities — the largest bankruptcy filing in American history. Within hours, the TED spread — the gap between the three-month US Treasury bill yield and three-month dollar LIBOR — leaped from 100 basis points to 464 basis points. Money markets froze. AIG was nationalised two days later in a $182 billion taxpayer-funded operation. The Reserve Primary Money Market Fund "broke the buck" on 16 September, falling below $1 net asset value and triggering a run on prime money funds totalling $310 billion of outflows in one week. By the end of the month, the US Treasury was asking Congress for $700 billion under TARP, and Ben Bernanke was locking the door of his Federal Reserve office at 11 pm with a single sentence to his staff: "If we don't do this, we may not have an economy on Monday."
To a UPSC Paper I candidate, that story is not just dramatic — it is the moment when three centuries of macroeconomic doctrine collided in a single weekend. The classical instinct (let the market clear, debt liquidation will restore equilibrium) was audible inside the Fed in the voices of inflation hawks at the regional Federal Reserve banks; Andrew Mellon's 1929 dictum "liquidate labor, liquidate stocks, liquidate the farmers, liquidate real estate" had its modern echoes. The Keynesian instinct (aggregate demand is collapsing, the liquidity trap is real, only fiscal-monetary expansion will work) prevailed and produced the $787 billion American Recovery and Reinvestment Act of February 2009, signed by President Obama at the Denver Museum of Nature and Science on 17 February. The monetarist instinct (Milton Friedman's 1963 diagnosis of the Great Depression as a Fed-induced money-supply collapse) directly informed Bernanke's quantitative easing — a sequence of balance-sheet expansions taking the Fed's assets from $0.9 trillion in August 2008 to $8.9 trillion by April 2022 through QE1 (Nov 2008-March 2010), QE2 (Nov 2010-June 2011), Operation Twist (Sept 2011-Dec 2012), QE3 (Sept 2012-Oct 2014), and the pandemic-era QE4 (March 2020 onwards).
A century earlier, John Maynard Keynes had described his General Theory (Macmillan, February 1936) as an attempt to free economists from "old ideas, which ramify, for those brought up as most of us have been, into every corner of our minds." This chapter walks through those "old ideas" — the classical edifice that ran from Smith (1776) to Pigou (1933) — and the successive revolutions that knocked it down and put pieces back: Keynes (1936), Hicks (1937), Modigliani (1944), Friedman's monetarism (1956, 1968), the new classical revolution (Lucas 1972, 1976; Sargent-Wallace 1975-76), Real Business Cycle theory (Kydland-Prescott 1982), and the New Keynesian synthesis that frames central-bank policy from the Federal Reserve to the Reserve Bank of India today.
The Lehman moment is therefore a Rorschach test for every macroeconomic school. Where the classicist sees overdue liquidation, the Keynesian sees a self-fulfilling collapse of aggregate demand; where the monetarist sees a money-supply implosion the central bank must reverse, the post-Keynesian sees a Minsky moment after years of speculative-Ponzi finance. The 2020 pandemic added one more layer — fiscal deficits of 27% of GDP in the United States and 10% of GDP in India, currency expansions that would have made the 1970s Bundesbank faint, and a subsequent inflation surge to 9.1% year-over-year in the US in June 2022 that forced the most aggressive monetary tightening since Volcker. Understanding all of this — what Keynes called "the slow rebuilding of one's mental furniture" — is what Paper I asks of you.
Why this matters for UPSC
Macroeconomic schools account for 80-100 marks of Paper I — roughly one third of the paper. Every Paper I has at least one 20-mark question on a school ("Critically examine the Keynesian revolution"), one on a specific theorem or proposition ("Phillips curve flatter post-2008", "Lucas critique of policy evaluation", "Modigliani-Miller in macro context"), and one 60-mark essay that demands a synthesis across schools.
Paper II (Indian economic policy) draws constantly on this material — every inflation-targeting debate, every fiscal-multiplier estimate for NREGA or PM-Kisan, every QE-versus-LAF discussion, every CRR-SLR change, every MPC press conference has its roots in the doctrinal history this chapter covers. When the RBI Governor in October 2024 explained the "flexible inflation targeting framework" with a "4% midpoint", he was operating inside a New Keynesian DSGE architecture descended directly from Taylor (1993) and Svensson (1997).
The interview board also returns to this material with regularity: "You said NREGA's multiplier was 1.5 — what assumptions about MPC and crowding-out are you making?", "Should the RBI follow the Fed in rate cuts?", "Was the 2016 demonetisation inflationary or deflationary?", "Is India in a liquidity trap after the 2020 lockdown?". Without the doctrinal scaffolding, every answer collapses into platitude.
This chapter therefore aims to give you both the algebra (you must be able to derive IS, LM, AS, AD, and the Phillips curve under expectations) and the narrative (you must be able to tell the story of the General Theory in three minutes, the Lucas critique in two, and India's inflation-targeting transition in five). The Mains examiner wants both — equations grounded in historical context, and history grounded in algebra. Memorising Friedman's 1956 restatement without being able to write the money-demand function is half the marks; deriving the money-demand function without knowing Friedman lived through the inflation of the 1970s is the other half.
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