In: Economics
Consider the Solow grow model. Suppose for each unit
of savings, the government consumes a fraction τ , so only the
fraction 1 − τ would accumulate the capital stock. In other words,
the law of motion for capital becomes:
K1= (1 − δ)K + (1 − τ )sY
where δ is the depreciation rate, s is the saving
rate, and Y is aggregate output. Suppose production function is Y =
zF(K, N). Follow the same steps we did in class to derive the
equation that determines the steady state capital under this new
law of motion. Then, mathematically show whether output per capita
falls or rises with τ , i.e., determine the sign of dy/dτ . Explain
your result briefly