The aggregate production function measures productivity as:

Question

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The aggregate production function is a mathematical expression that relates the level of output of an economy to the inputs used in production, such as labor and physical capital. Real GDP per worker is a common measure of output per unit of input (labor), and is therefore a key component of the aggregate production function. Nominal GDP per worker, median income per worker, and average disposable income are not directly related to productivity, and are thus not appropriate measures for the aggregate production function.

The Aggregate Production Function Measures Productivity As