What is total factor productivity growth and why is it important?

The above essay must be in undergraudate standard.

2000 words essay 

Essay should include the following:

(PLEASE STATE EXAMPLES FROM COUNTRIES)

Define Total Factor Productivity.

How is Total Factor Productivity measured?

How does Total Factor Productivity relate to long-term ecnomic growth?

What are the determinants of Total Factor Productivity?

Criticisim of Total Factor Productivity for long-term ecnomic growth

Conclusion 

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