If labor input, the capital stock, and real output grow at equal rates, then Solow's formula implies that productivity growth is

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Solow's formula for productivity growth, also known as total factor productivity growth, indicates that if labor input, the capital stock, and real output all grow at equal rates, then the growth in productivity (which is the increase in output not explained by the increase in inputs) is zero. This is because all the growth in output is accounted for by the growth in inputs.

If Labor Input, the Capital Stock, and Real Output Grow