In year 1, capital stock was 6, labor input was 3, and output was 12. In year 2, capital was 7, labor was 4, and output was 14. If shares of labor and capital were each 1/2, between the two years, total factor productivity:
A) increased by 1/12.
B) increased by 1/18.
C) decreased by 1/12.
D) decreased by 1/18.

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The Answer of In year 1, capital stock was 6, labor input was 3, and output was 12. In year 2, capital was 7, labor was 4, and output was 14. If shares of labor and capital were each 1/2, between the two years, total factor productivity:
A) increased by 1/12.
B) increased by 1/18.
C) decreased by 1/12.
D) decreased by 1/18.

In Year 1, Capital Stock Was 6, Labor Input Was