I am a fourth year PhD student in Economics at Columbia University specializing in macroeconomics.
You can contact me at kac2250@columbia.edu .
Working Papers
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We uncover a new mechanism that links growth and a decline in the energy intensity of production, observed globally since 1990. Using microdata from India and a causal research design, we demonstrate that the expenditure share of energy declines steeply with firm scale, due both to physical scaling laws and technology investment. Given the fact that average firm size increases with growth, this scale dependence in energy demand implies that production endogenously becomes less energy-intensive with aggregate growth. We develop a model of this mechanism in general equilibrium, and quantify significant reductions in aggregate energy intensity as low- and middle-income countries (LMICs) like India grow. We conclude with a discussion of the future path of emissions in India.
Work in Progress
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Interest Rate Inattention and the Heterogeneous Transmission of Monetary Policy
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Uncertainty About Borrowing Constraints
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Optimal Information and Investment in Lumpy Economies
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Price versus Quality Dispersion in General Equilibrium
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Place-based Policy in Endogenous Production Networks
Teaching Experience
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PhD Frontiers of MacroeconomicsTeaching Assistant · Columbia University, Economics Department · Fall 2025
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PhD Macroeconomics ITeaching Assistant · Columbia University, Economics Department · Fall 2024
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Undergraduate Intermediate MacroeconomicsTeaching Assistant · Columbia University, Economics Department · Spring 2024
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Undergraduate Development EconomicsCourse Assistant · New York University, Economics Department · Fall 2020, Spring 2021, Fall 2021
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Undergraduate International EconomicsGuest Lecturer · Fordham University, Gabelli School of Business · January 2018, 2019, 2020