Econometrics
Is there an inverted-U curve between income level and FDI's effect on economic growth?
Manami Nomura· Spring 2026

Abstract
This essay investigates if foreign direct investment (FDI) helps economic growth more in middle-income countries. We use panel data from 2000 to 2024 for 100 countries. We use the Generalized Method of Moments (GMM) model with R.
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