What was the outcome of Wassily Leontief's empirical investigation into comparative advantage?

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American exports require more capital compared to American importsAmerican imports demand more labor than American exportsAmerican exports do not distinctly rely on either labor or capitalNone of these statements are correct

Explanation

Leontief's empirical results contradicted the traditional Heckscher-Ohlin theory. His findings showed that U.S. exports were less capital-intensive than imports, challenging the expected pattern. Therefore, none of the provided options accurately describe his conclusion.